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Below are the latest CITROEN C5 questions submitted by visitors to RoadTestReports.co.uk. To supply an answer, simply click on the "Answer this question" link underneath each question. Alternatively, if you want to ask a question, please use this simple form. Please try to make the question as detailed as possible, with all the information necessary for a comprehensive answer included. Please do not use "text speech" or type everything in CAPS LOCK.

Tony Carguillo, Yorkshire

Citroen C5 2008

I have several problems with my Citroen C5. 1.My auto is sticking in "P". When you put your foot on the brake it won`t come out of P until you pump the brake pedal over and over. You can then hear a low click from the consul and then it`s free. This happens more when it`s warm or after being used. I was told to change the brake switch which has been done twice now with no effect. I have to leave it on it`s electronic handbrake and don`t feel safe. Can anyone help before I spend £100s? 2.All of a sudden the radio/cd has no sound but all of the display comes up and the rear parking sensors display but there`s no sound. What`s wrong? 3.Finally the A/C is suddenly not cold and blows like an ordinary blower. Please can anybody help me with these problems? Many thanks. (2.0L auto saloon Exec)

Answers

I had the same problem of sticking in P. I was in Spain touring with a caravan so was a little bothered! I went to a Citroen garage near Calpe and they diagnosed a faulty switch in the top of the autobox. They ordered one and I went back next day and it was fitted in less than an hour cost 60 euros. Hope that helps Alan from England

Submitted: 01/07/2013 11:12:21 | ID: 64048

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Peter McQuin, Nottinghamshire

Citroen C5 2009

I have a Citroen C5 and I want to change the engine oil filter paper cartridge that fits into a finned aluminium tank at the bottom front of the engine. The tank is secured by a socket head screw. Do I require any ’O’ ring or other seal, as the paper cartridge has arrived with nothing else in the box ? Answers will be very much appreciated, thanks. (2 litre diesel)

Answers

Yes, unscrew the plastic filter housing, take out old cartoosh filter (paper), wipe and clean old oil off parts your dealing with. Fit the new O ring and fit the new filter, replace top, and fill engine to correct level with oil Richie Fairhead from Durham

Submitted: 20/06/2013 11:13:47 | ID: 54211

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Kevin Gawne, Fife and Kinross Shires

Citroen C5 2001

Hi, my suspension on my Citroen C5 has decided to get stuck between the medium and high suspension point. The dashboard light for the suspension has all 4 lights showing up. The car still drives fine but I don’t know what to do. I have pressed the buttons for the suspension and nothing happens! Please can anybody help? (HDI 2.0 litre)

Submitted: 18/06/2013 09:56:39 | ID: 67408

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Nigel Macleod, Ross and Cromarty Shires

Citroen C5 2008

Can anybody help with the fitting of a 6-disc CD changer? My Citroen C5 was registered in March 2008 and was supposed to have one, but did not. I bought the right unit and plugged it in to the frame under the driver’s seat, but it is evidently not connected to the radio, although Citroen assured me that it would be! Any help would be appreciated. (Exclusive saloon)

Answers

You need to enable the option through lexia software or go to your local dealer and have the stereo enabled on their machine Michael Morgan from Kent

Submitted: 18/06/2013 09:07:12 | ID: 55497

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Aled Jackson, Wrexham

Citroen C5 2009

Could someone please tell me where the Air Conditioning filter is located on my Citroen C5 2009 model (New Shape)? My Air Conditioner is blowing warm air and I want to check the filter before having it re-gassed. Thank you.

Submitted: 07/06/2013 08:58:12 | ID: 92031

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Matt Fitz, Ireland

Citroen C5 2008

Swishing water sound coming from dashboard! I’ve noticed that a swishing water sound appears to be coming from under the dashboard of my Citroen C5. I mainly notice it going around sharp corners or roundabouts - sounds just like water moving from one side of the dash to the other (seem to be more on the passenger side than the driver’s side)! This has been the case for maybe two weeks now - but this morning I have noticed that the foot well on the driver’s side is wet! I’m guessing that water isn’t being allowed drain properly from the windscreen area but I can’t find any drainage holes that appear to be blocked! Any help appreciated. Thanks. (1.6HDI)

Answers

I had the same problem with exactly the same symptoms and it was the heater matrix that had gone Graeme from England

Probably way too late but the run off vents on either side of the windscreen /bonnet is probably backed up with leaves dirt etc. Happened to me, flooded the windscreen wiper motor - 200 euro. Coat hanger would have fixed it Conor Flood from Westmoorland

Submitted: 28/05/2013 15:46:15 | ID: 55562

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Russell Myhill, Norfolk

Citroen C5 2005

I have the chance to buy a Citroen C5 which is worth the money but when you turn the key to start the car it will turn over, stop for a split second, then carry on and start. Why does the starter motor stop and start?

Submitted: 03/05/2013 16:17:06 | ID: 55712

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Ronny Madsen, Norway

Citroen C5 2010

Sometimes smoke comes out from the hood of my Citroen C5. It lasts for 30 seconds / 1 minute and after that there`s nothing. A lot of smoke comes out. Citroen where we bought it say it’s normal, but I haven’t seen anyone else have the same problem. Is this normal?

Answers

No, of course it isn’t. No smoke should be coming from under the hood. There could be oil landing on a hot area, or a turbo letting go, but you need to go back to the garage and tell them they are incompetent if they think it’s normal Rick Ferries from Aberdeenshire

Submitted: 02/04/2013 11:56:53 | ID: 92492

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Malcolm Wheeldon, Lancashire

Citroen C5 2004

When doing a full lock turn my Citroen C5 would shudder and this would be felt through the steering. I had new tyres and the tracking was out so I had it done electronically which helped. The handbrake does not click for the first 2 inches of travel and it was found the nearside cable was stiff and had the outer covering worn away from touching the tyre on full lock. The car drives straight with the steering wheel central and has equal turns from lock to lock, so what could be causing it? (2.0ltr HDI VTR automatic)

Submitted: 04/02/2013 11:15:11 | ID: 89565

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Maurice O’Connor, Australia

Citroen C5 2006

Approximately one year ago my Citroen C5`s speed limiter malfunctioned. For example, when it is set to 110 km/hr the car will not go faster than approximately 80 km/hr. All dashboard indicators seem normal. (The battery was replaced about a year ago and that fixed the malfunctioning power steering.) Can anyone help me please? (2.0 L Turbo HDI BVA saloon)

Submitted: 31/01/2013 11:56:03 | ID: 66755

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Karl Wragg, Derbyshire

Citroen C5 2004

Due to the recent events with the weather my Citroen C5`s central locking stopped working, (I`m not able to use the button on the key). After a week of using the key to lock the car I decided to disconnect the battery and re-connect it, only to find that the car will not start. The battery is only 14 months old and the car was fine before I did what I did with the battery. Any help or advice would be appreciated. Can anyone tell me what to do?

Answers

Hi! Problem is that when you took out battery you have less than 5 seconds to reconnect the battery otherwise you must reprogram the car, which can cost around anything from £80 Ollie Merritt from England

Hi, open the car with the key. Turn the key 5 times so the dash lights up only... Lock the car with key, wait 5 mins approx it reprograms the code from the ecu back to the key David from England

Not true, I have a C5 2:0lt estate for nearly five years, taken the battery off many times and never had to get the car reprogrammed, I,m a competent diy'er, I changed the clutch and converted that pathetic dual mass flywheel to a traditional solid one piece flywheel last year, had the battery off for two days, or was it three, and no ill effects, total rubbish :-) Geoff sim from Cheshire

Not true, I have a C5 2:0lt estate for nearly five years, taken the battery off many times and never had to get the car reprogrammed, I,m a competent diy'er, I changed the clutch and converted that pathetic dual mass flywheel to a traditional solid one piece flywheel last year, had the battery off for two days, or was it three, and no ill effects, total rubbish :-) Geoff sim from Cheshire

Submitted: 29/01/2013 10:10:32 | ID: 89668

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Miles Chettle, Cheshire

Citroen C5 2010

While driving at night the screen of my Citroen C5`s sat nav turned a bright yellow and I could not read the display. The next morning it was back to normal and it hasn`t done it again. Any ideas why this happened? (vtr+nav)

Answers

I have owned a 10 plate C5 VTR Plus Nav HDi 160 for a month. Shopped in a Mondeo Titanium X because I had a fault with the touch screen sat nav and couldn’t face the cost of putting it right. Then on Friday the sat nav screen on my C5 went yellow - I was not amused. Drove about two miles, stopped the car and started it again - still yellow. Left if for about 20 minutes and now all ok. So something to keep an eye on. I’ll let you know if I ever find out what happened or if the problem gets worse Mark North from England

By pure coincidence, my screen started doing this just today (13aug2014) - how annoying. Intermittent yellowing and fading. I see there is a bmw chatroom on such a topic. A well documented successfull solution involved a thorough cleaning of the ribbon connectors. Not only does it solve the problem, but also resulted in more vibrant colours. Search "bmw faded screen synndrome". A few years ago my satnav started playing up intermittently. After a thorough dismantle and clean, it has been fine ever since. I suppose after 13 years electrical connectors could do with a good. helen from Lincolnshire

By pure coincidence, my screen started doing this just today (13aug2014) - how annoying. Intermittent yellowing and fading. I see there is a bmw chatroom on such a topic. A well documented successfull solution involved a thorough cleaning of the ribbon connectors. Not only does it solve the problem, but also resulted in more vibrant colours. Search "bmw faded screen synndrome". A few years ago my satnav started playing up intermittently. After a thorough dismantle and clean, it has been fine ever since. I suppose after 13 years electrical connectors could do with a good. helen from Lincolnshire

Submitted: 24/01/2013 12:20:20 | ID: 89503

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D J McIntyre, Lanarkshire

Citroen C5 2001

I have a Citroen C5 and the speedometer gives the wrong reading but the rev counter is okay. I have been told it`s a sensor on the gearbox but I can`t find it. Also I`ve been told that the sensor is behind the speedo, does anyone know?

Answers

Hi ya. I had the same thing happen to my 2003 c5 hdi. You can test to see if you speedos stepper motor if faulty by changing it with the one on the rev counter. Sounds tricky as the clocks have to be removed and taken apart but believe me its very very very easy. All you need to remove the clocks are 2 credit cards or in my case a subway loyalty card and an AA card, lol. Sit in the driver’s seat and lower the steering wheel and pull it out as far as it will go. Now on the clocks around the clock glass there is a black plastic trim, At the bottom of that trim you will see 2 small dimples / indents (1 either side along the bottom) Now push your cards under them dimples (1 card under each) push them till they wont go any more. Now that has realised the clocks, just hold the 2 reset buttons that stick out of the speedo glass (the ones you use to zero your trip meter and so on) Now just slowly pull the set of clocks forward (they should come out very easy, takes under a min) Now the clocks are out you just need to realise the clip and remove the wiring plug from the clocks, you will soon work out how the plug comes off. Now take the clocks inside along with your screw driver set and you all ready to go. You will see some screws on the back of the dials, Remove them and remove the back, now you will see the other bit is clipped around the outside, Prise them apart with a flat screwdriver, don’t be scared, it won’t break. Once the clocks are apart pull the needle off the speedo and rev counter, now turn the clocks over again and you will see the 2 stepper motors for the speedo and rev counter (they are right behind where you pulled the needles off) There are 2 little plastic tags that gently need to be spread then the motors can be pulled out, Just swap the speedo one for the rev counter one and put it all back together. I know it sound tricky and hard when you read it but believe me it’s so easy, First time i done it only took me half hour from start to finish. I ended up getting a new stepper motor off eBay for £23. That would be the best way to see if your speedo is faulty of the speed sensor. I am not sure where the speedo sensor is on the c5 though. I know on some French motors the speedo picks up the speed from the abs sensors or traction control sensors. Let me know how you got on. Kind regards Adam Fenn from Norfolk

Mine was exactly the same, the speedo still moved, but it was showing 10 mph out all the time. All I did was remove the clocks then moved the pointer manually to the zero mph position and it’s been ok ever since. Hope this helps. Steve from Durham

Perfect instructions! Mine was even easier ... no screws just clips, so good to have such clear and concise instructions, Thank you very much. Cric from Gwynedd Cric Peters from Gwynedd

Perfect instructions! Mine was even easier ... no screws just clips, so good to have such clear and concise instructions, Thank you very much. Cric from Gwynedd Cric Peters from Gwynedd

Submitted: 21/01/2013 12:08:43 | ID: 88959

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Dawn, Hertfordshire

Citroen C5 2002

I just bought this Citroen C5 2 weeks ago, at what I thought was a steal, clearly not. The problem I have is that the heater isn’t getting hot. The fans all work, the screen shows 28, I’m getting more like 18, but in this severe weather we are having it`s just like having freezing air blowing in. What can I check myself before being ripped off at a garage? I grew up around cars and so I’m not worried about getting a little dirty, just I have my kids in the car, so it’s not fair on them. Any ideas? (V6 Exclusive Auto)

Answers

Get used to it or be prepared to be ripped off. My ’06 model did the same, so took it to main dealer who supposedly fixed the "slight hiccup". Paid £650 for minor service but all problems returned. No comeback. Get rid ASAP Walter from Yorkshire

Had the same problem with my 04 HDI VTR had a look round and removed radio found that the heater control cable had popped out of its guide by the control knob popped it back in and all well it does occasionally pop out but as is a 5 min job. Haven’t bothered to get a new clip if they are even available. A little 3 in 1 oil on the control cable does seem to help. Hope this works for you Malcolm Cushion from Hertfordshire

99% chance it’s the fan control module. It’s located in the heater unit; to gain access remove the shroud under the steering wheel, the fan control module has 2 seperate plugs, one with a thick red and black cable, the other with a thick red and black cable and 2 thinner cables. It is held in in place with 2 hexagon screws, the top one is difficult to see without a torch - it is very easy to remove. It can only be obtained from main dealers and costs about 58 quid inc vat; just changed mine with same symptons and now works perfectly. A very common problem on all French cars Ollie Merritt from England

Submitted: 18/01/2013 12:57:02 | ID: 68021

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David Gilbert, County Antrim

Citroen C5 2002

I have just bought this Citroen C5 and on it’s first run out I stopped at a traffic light and when I was ready to move the forward gear had disengaged, although the car was still in drive. I could get reverse gear but not forward. Eventually, after turning the engine on and off a few times and moving the gear selector to park and back to drive, the gear selected and I was able to drive again. Any suggestions? (HDI Exclusive Automatic)

Answers

It could be a damaged fuse board. My 09 had a crack in it which resulted in a display of fault lights, then limp home mode but the car was stuck in third Keith Davies from England

Submitted: 18/01/2013 09:39:28 | ID: 67902

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John Quine, England

Citroen C5 2002

Whenever I brake, my Citroen C5`s interior light comes on dimly. This happens whether lights are on or off. I have checked all bulbs as suggested by my dealer but the problem still persists. Has anybody had this problem and found a cure? Thanks in advance. (saloon hatch)

Answers

I had a similar problem with my daughter’s Clio recently. The problem was caused by a dirty earth connection on the rear light fitting. I also checked the connection of the earth cable to the body Ian Siggee from England

Submitted: 14/01/2013 11:20:04 | ID: 67817

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Ciaran, Lanarkshire

Citroen C5 2009

My Citroen C5 has a very annoying dull rattle when going over small bumps in the road. Thinking it was bushings I have had it back with Citroen 3 times who say they’re fine. My own mechanic can find nothing worng but he can hear the same noise on test drives. Suspension over large bumps and potholes is fine, the ride is comfortable. This noise is driving me nuts. Also I have just had it back from a service and discovered the mechanic has disconnected a cable at the passenger footwell. I`m going to see him but can anyone advise what this might be? It was only in for standard service and MOT. I don`t understand why he would have had to disconnect a cable? (HDI)

Answers

I had that, it was really annoying. I burst a front coil spring and had both replaced and the noise went away it was an anchor point for one of the front shockers which was worn replaced with new parts and no noise at all George Smith from Fife and Kinross Shires

Probably the drop links, I have had to replace mine, same noise David Banks from Lancashire

If noise is coming from the front then it will be the drop links - very cheap to replace and is almost a DIY job. With so many speed bumps and poor roads they can fail. We have two C5’s and they are fantastic. If drop links fail within a year you will be able to get them replaced free of charge Tim Harding from Durham

Submitted: 14/01/2013 10:57:29 | ID: 67687

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Barry Watkins, Berkshire

Citroen C5 2008

How can I reduce the road noise from my Citroen C5`s front wheels? I have tried several tyre brands but to no avail. Would noise reduction materials help and in what areas ie. exterior/interior bulkhead, interior of bonnet under wings etc? (Exclusive)

Submitted: 08/01/2013 14:26:28 | ID: 67540

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Carlos Hollman, Kent

Citroen C5 2004

I have a 2004 Citroen C5 2.2 vtr hdi and have just changed my car battery 72ah 680 for a 75ah 780. Now I have lost all dashboard dials, radio/cd but fuses are okay, all lights okay and indicators. I have put back the old battery but it has stayed the same. Can anyone help please? (hatchback)

Submitted: 08/01/2013 14:02:20 | ID: 67493

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Wendy, Ireland

Citroen C5 2006

Does anyone have a wiring diagram for the Citroen C5 Series 2 1.6hdi EXC? My Citroen C5 has developed a tricky problem. The brake lights don’t work, nor does the cruise control. We’ve replaced the fuse for both, our mechanic has also attempted to secure a loose wire but the problem keeps happening. We get no notice on the dash that the brake lights are out. We believe we need to do a complete trace of the wiring. Can anyone help? (1.6 hdi)

Answers

It is the brake light switch that is a twist-on little unit but its not at the brake pedal; it’s behind the glovebox as the European left-hand drive layout leaves the brake servo on that side and UK cars have a bar going across from the brake pedal to the brake master cylinder on the UK passenger side. Take out the glove box top and bottom retaining screws, unplug the glovebox light cable and withdraw the glovebox. The brake switch is pushed into a hole in the pedal actuator and twisted to lock in place. If that is not in place then your cruise and ESP not function. The central display would normally say "brake fault" too Mo Mo from London

Mo Mo, thanks for the answer. Just a quick clarification - your answer said that it usually says "brake failure"on the display. We get no notice on the display - does that make any difference? Thanks Wendy from Ireland

Submitted: 08/01/2013 10:14:58 | ID: 67343

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Ernest Walker, England

Citroen C5 2002

I recently replaced o/s track rod end and had tracking done on my Citroen C5. Since then my esp and asr warning plus service indicator stay lit. The car`s winter service 1,500 miles ago states on message indicator esp asr not functioning. The car is running normally and the mechanic says there`s a possible fault on the steering column. Has anyone had a similar problem? (2ltr hdi exec)

Answers

You went too far off centre with your track rods and tracked the car to match and the steering wheel angle sensor on the steering column (within the com2000 assembly) tells the Ecu it is not centred as before. You need to get the Ecu to accept the new steering center position ; done with a citroen Lexia diagnostic tool. The other possibility is that whilst working on the track rods you have fractured the inner wires in the Abs sensor, Lexia tool will find that fault if it exists Mo Mo from London

Submitted: 07/01/2013 14:21:32 | ID: 67130

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Keoth Webster, Wales

Citroen C5 2002

My 2002 Citroen C5 has developed a shake on the steering at 70mph. The tyres are new and balanced and the tracking has been done. Any answers please?

Answers

Sounds like you may have a defective tyre on the car if both the tracking and the wheel balance are both okay Tony Clingan from Buckinghamshire

I had the same rattle at that speed and was told by Citroen it was due to a worn steering column. If you have centreless wheels they need to be balanced by a special machine and when done the rattle on mine vanished. Hope this helps Clive Blunt from Norfolk

I have always had a slight shake on the steering between 65 and 70mph even after having new tyres fitted and the wheels balanced. After having new tyres on the front again (put front tyres on rear) and having the tracking done the steering still shook but the anti theft wheel nuts got damaged so I replaced these with standard bolts and the shaking stopped. I wonder if the anti theft bolts are a different weight. I would weigh them but they have been disposed of Malcolm Wheeldon from Lancashire

Submitted: 04/01/2013 11:16:55 | ID: 66934

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Tracey, Ireland

Citroen C5 2009

Can somebody please tell me where can I raise up my Citroen C5`s front lights? The two twist things on the steering wheel are only affecting display. My lights are facing down and giving very bad light.

Answers

There is an adjustment leveller for front and rear in my C5 , this is how I set lights for MOT John McGrath from County Tyrone

Hi John. Where do I find this lever? Tracey from Ireland

If you have the hydraulic suspension they are self levelling David from Lancashire

If it’s not got hydraulic suspension then there should be a thumbwheel just to the left hand side of the steering wheel, explained on page 45 of the manual, here: http://info.citroen.co.uk/assets/microsites/new-c5/pdf/C5-Owners-Handbook.pdf Steve Wilson from Kent

Submitted: 03/01/2013 16:35:37 | ID: 66641

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Stevie, Ireland

Citroen C5 2001

I have recently bought a late 2001 Citroen C5. It is my first C5 and a lot of the stuff i am reading online really makes these cars seem extremely complex. My car drives like an absolute dream, no engine complaints, good fuel consumption etc but I am getting the warning message ’serious suspension fault’ on the dash. Although the ride height of the car varies of it`s own accord, (anything from full height to lowest point) during a journey, it has no great effect on the drive quality. The adjuster button between the front seats doesn’t seem to work to rectify the problem. I have found that when the car has been switched off and locked, leaving it a few minutes and pressing the ’lock doors button’ on key fob, followed by the ’open doors’ button always returns the car to the correct height. I am at a loss to know where to start a diagnosis on the problem. I have read about fluid levels, pumps, spheres needing replaced, computer problems and all sorts of other possibilities. Is there a simple starting point in order to start the elimination process and move towards a solid diagnosis and getting the car back to 100% the way it should be? Advance thanks for any help with this one.

Answers

There are electronic height correctors on that car and they sometimes go faulty Willie Johnston from Ireland

Submitted: 03/01/2013 12:43:16 | ID: 66734

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Keith, County Down

Citroen C5 2002

My Citroen C5`s central locking is not working. It comes on the display boot open but it is closed. The front two doors lock when you lock manually (with the key), but not the back two doors and the boot`s still not locked. Any help would be appreciated. Any ideas? Thanks

Submitted: 03/01/2013 10:07:16 | ID: 66706

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Alan Jones, Lancashire

Citroen C5 2008

My Citroen C5`s windscreen wipers started to act up and then stopped altogether. When the stalk is moved the driver`s side one moves slightly, but only about an inch. I also noticed that the side light isn’t working (might just be the bulb), but it was definitely working prior to the wipers packing in. I don`t know whether this is relevant but I have read some weird stuff about these problems. I would be grateful for any advice on where to start? (1.6 HDI new shape)

Answers

I had a similar problem and it was the offisde wiper motor. It was fitted a couple of months ago now it’s back in the garage as the wipers were working only intermittently now they’ve stopped altogether. They’ve replaced the nearside motor and they worked for a short time and then stopped again. They don’t appear to know what the fault is. Would be grateful if you have had a similar problem as this is starting to try my patience. Hope you managed to rectify your fault Keith Parkinson from England

I had a pretty similar problem. I changed the offside motor today and now it`s functioning normally. ilkka.jaakkola from Finland

Submitted: 03/01/2013 08:58:36 | ID: 75017

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Alan, Lanarkshire

Citroen C5 2002

My Citroen C5`s computer display only shows time and outside temperature, I can`t get it to show mpg or change it as the button on the end of the stalk does not seem to work. Can anyone help or advise?

Answers

The button on end of stalk has gone duff, it’s possible to fix it but you will ned to have done it before to know what’s behind the button... You are far better off going on eBay and buying a used stalk assembly also called com2000 from the same type of car (saloon or estate) it’s an easy swap for a careful technical person No No from London

Submitted: 24/12/2012 11:04:55 | ID: 66031

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Robert Power, Ireland

Citroen C5 2001

My Citroen C5 2.2 hdi automatic had it`s particle filter cleaned recently, ran perfectly for 2 months with just an occasional message reading -diesel filter blocked. Then suddenly one day it displayed -anti-pollution problem, with the engine management light on and in limp mode. Next day lights and pollution message were still on but the car ran perfectly. Later that day all lights and messages disappeared and the car is flying since. Did my particle filter just suddenly clear it? Lucky me but I`m still uneasy when I read these horror problems with some C5s. Any ideas or comments?

Answers

One day it displayed anti-pollution problem, with the engine management light on and in limp mode. Anonymous from

Diesel filter is the fuel filter and can get blocked with water. The heat from the engine when parked can evaporate the water so it clears itself, but may block again if you have filled up with poor fuel. This fault will give an anti-pollution fault as well if it blocks for long enough. You can try draining the fuel filter by the tap underneath, this worked for me. I also had a problem without warnings where my car lost power and then recovered but it happened again and the fault lights came up permanently. It was after heavy rain and I had read of the air filter box filling up with water. I checked and the box was full. The Mass Airflow Sensor was damaged and had to be changed. I cut a large hole in the side of the filter box to stop it happening again because it could have destroyed the engine. The air intakes are on the wrong side for RH drive cars and with a turbo it just sucks water straight out of deep puddles. Not just Citroen cars Bob Moody from Hertfordshire

Diesel filter is the fuel filter and can get blocked with water. The heat from the engine when parked can evaporate the water so it clears itself, but may block again if you have filled up with poor fuel. This fault will give an anti-pollution fault as well if it blocks for long enough. You can try draining the fuel filter by the tap underneath, this worked for me. I also had a problem without warnings where my car lost power and then recovered but it happened again and the fault lights came up permanently. It was after heavy rain and I had read of the air filter box filling up with water. I checked and the box was full. The Mass Airflow Sensor was damaged and had to be changed. I cut a large hole in the side of the filter box to stop it happening again because it could have destroyed the engine. The air intakes are on the wrong side for RH drive cars and with a turbo it just sucks water straight out of deep puddles. Not just Citroen cars Bob Moody from Hertfordshire

Submitted: 20/12/2012 16:16:47 | ID: 65943

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Paul Duncan, Lanarkshire

Citroen C5 2009

My Citroen C5`s LCD screen above the radio is in constant dark mode. I have tried the ’3 presses’ to return to normal with no joy. Any ideas? (2.0 diesel)

Answers

Little light bulbs behind have burnt out ... Easy to change Mo Mo from London

Submitted: 17/12/2012 12:15:19 | ID: 63990

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Dee, Somerset

Citroen C5 2010

My Citroen C5 has a sat nav built in but the volume setting is so low I cant’ hear it. Does anyone know how to turn the Sat Nav volume up?

Answers

When the voice is actually giving directions turn the volume up as she is speaking, this should work, otherwise there will be an option within the settings Ciaran from Lanarkshire

Submitted: 17/12/2012 09:45:12 | ID: 88299

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Samuel Ofori, England

Citroen C5 2004

My Citroen C5 2004 auto diesel`s dash board screen is off completely and also the mechanic working on the car is saying I need turbo charger. Also the sound system is not playing. Any advice please? (HDI)

Answers

The turbo is rightly behind the engine and need to be changed, also replace the screen and the radio Pegeout Ayenba from Ghana

Submitted: 13/12/2012 14:33:01 | ID: 65426

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Nigel Partlett, Nottinghamshire

Citroen C5 2011

I have just purchased a Citroen C5 VTR+ Sat Nav. I cannot get the Sat Nav to work. It must be something simple, but I just can’t fathom it. I put in the destination address and it starts to search for destination, but never finds it. I’ve tried just putting in the post code, but that does the same. I’ve even gone back to factory settings but still no joy. Any ideas please?

Submitted: 11/12/2012 14:48:47 | ID: 64927

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Yasir Munib, Finland

Citroen C5 2001

I want to purchase a Citroen C5 2.2 Hdi but the car’s 2 solenoid valves must be changed. Does anyone know how much it would cost to change this valve or if it`s a big problem?

Submitted: 06/12/2012 14:09:03 | ID: 64490

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Noel, Malta

Citroen C5 2008

I have noticed engine oil is pouring out from close to the engine sump of my 2008 new Citroen C5 and the belt, but the belt and not the timing belt is not oily at all. I have found oil on the tray below and the colour is almost brown to black. Can anyone help me find what is wrong?

Answers

Hi Noel, I think you will find the answer at the top of the engine at two points. (1) The 0 ring in the r/hand end of the rocker cover to air air duct to the turbo needs replacing as the oil runs down the back of the engine and onto the tray. (2) On my 1.6 hdi 2009 I have found this black oily stuff around the injectors, if it is not cleaned off on a regular basis, it will run down to the tray also. If any one out there knows how to stop this problem please let me know. Regards John Bailey from Essex

Submitted: 29/11/2012 14:18:09 | ID: 63631

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Clive Blunt, Norfolk

Citroen C5 2003

I have two problems with my Citroen C5. The first is an intermittent knocking from the rear nearside. We have checked the exhaust, heat shields etc but can find nothing loose. Does the car have an anti roll bar or something similar that could be broken? It even happens on a smooth road. The second is the multifunction display works okay but nothing happens when I press the button on the steering wheel stalk. Any ideas please? (Exclusive Auto)

Answers

Hi, I had the same problem with the near side, I changed the bar that fits on the subframe, inline with the (2) suspension lower arms near oil sump, 4 bolts to remove, n/stk c508160 862 bar £17.82 +vat next check the drop links that fit on the anti roll bar the rubber my be worn, you my need mole grips to help get them off \ go to ebay for parts £15 - 30 x2 \ I have fitted Peugeot 206 to mine, cheaper than Citroen dealers, check the front caliper £80 approx, for movement two bolts were lose on mine, also check the clips that hold the brake pads to the disc, they could be loose...problem solved C5 2002, hope this helps David Powney from Yorkshire

Thanks for the answer to my question. I have not sorted it yet but it goes into a local garage on Wednesday. I will let you know the outcome Clive Blunt from Norfolk

Submitted: 26/11/2012 09:44:21 | ID: 63325

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Robert Power, Ireland

Citroen C5 2001

My Citroen C5 hdi 2.2 automatic has no light or clock on the dashboard to indicate whether the alternator is charging the battery or not. Why is this? If my alternator was giving trouble I`d like to know so as not to get stranded some night?

Answers

You will notice no oil pressure light either... Both come up as a message on the multi-function display along with the central ’STOP’ warning light Regan from New Zealand

Submitted: 22/11/2012 11:34:09 | ID: 59843

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Geoff Purvis, Derbyshire

Citroen C5 2007

I`ve had my Citroen C5 for nearly three years and this fault has only just started. The boot opens of it`s own accord when the car is unlocked either remotely or with the key in the lock. Also the boot opens automatically when opening the front doors from inside after driving. Any suggestions please?

Answers

Bought my C5 around 2006. A couple of years ago our boot did the same and my husband put some oil or something in the mechanism that locks it. Afterwards it worked correctly until some weeks ago when it started again. And yesterday another old history started again - "Depolotion system faulty". Got rid of it last Spring... Annica Petersson from Sweden

I’ve had the same problem. You need to press the lock button on your key fob twice and the problem seems to clear Keith Jones from Staffordshire

I had the same problem. There is a switch that opens the lock. My problem was that the switch was making by itself and when I tried to open the boot it did not always make. I opened the handle and put a small piece of rubber in position to stop the switch firm making without pressure David from South Africa

Submitted: 22/11/2012 11:10:30 | ID: 56820

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Samuel Forster, Staffordshire

Citroen C5 2012

My Citroen C5 Tourer had problems a few weeks ago. It went to the Citroen garage and they replaced the "High Pressure Fuel Rail Sensor". After it returned the eco mode stopped working. Any suggestions before I take it back?

Answers

It started to work again today. Haven’t got a clue why it wasn’t working. I drove back from my parents and noticed the engine stopped at a few traffic lights. My feel is that it probably has to be at a certain temperature for the ECO to allow the engine to stop start. Going to keep a log of the successes and failures of this C5 at citroen.samforster.co.uk Sam Forster from Staffordshire

Submitted: 20/11/2012 14:37:52 | ID: 55333

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Maz, England

Citroen C5 2008

The blowers have stopped working on my Citroen C5. It has 2 zone controls and all the switches and their corresponding lights work except that no air flows from the vents. A very faint strange noise is heard from the fan (I think) that sounds as if it is struggling to turn. I have read a lot of postings and it seems that there may be a problem with the fan speed regulator. Some postings even show pictures of it`s location which is said to be left of the top of the clutch pedal in the foot well of the driver`s side. I have looked a few times in my car and cannot find it as shown or described in these postings. I have removed the plastic cowling located in the foot well to the front of the central console and all I can see is the plastic side of what could be the fan motor, but no regulator. I would like to know if I have a problem with the fan speed regulator and, if so, how to find a replacement and repair it? If it is not the regulator, what seems to be the problem and how can I fix it? Many thanks in advance. (2.0 HDI)

Submitted: 13/11/2012 15:41:31 | ID: 92586

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Paul Engledow, Norfolk

Citroen C5 2003

Hello. My Citroen C5`s FM radio on the standard fit audio system has stopped receiving any broadcasts. AM works fine and so does the CD player! On FM I am getting the frequency readout but no siginal or audio and no station names displaying - does the FM radio have a separate connection / fuse anywhere? (110 HDI lx saloon)

Submitted: 12/11/2012 16:19:18 | ID: 92403

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