or Login >>         
C4 - DS4 Owners :: Forums :: Coupe and Hatch Pre 2011 cars :: Technical Questions

Technical Questions

Home   Forum Rules    Forum Help   Conversion Tools

Please Login with username OR Register to enjoy additional Member Benefits
New Posts New posts No New Posts No new posts Sticky Thread Sticky Announcement Thread Announcement
New Posts on Popular Thread New posts [popular] No New Posts on Popular Thread No new posts [popular] Closed Sticky Thread Sticky/Closed Closed Thread Closed thread
You cannot start new threads - You cannot post replies - You cannot edit your posts
  Thread Replies Views Latest Post
 Important Threads
Sticky Thread
[Sticky]
Brake Fluid explained
  Brake fluid... Bit of a mystery topic!To help dispel some myths and for some good solid general info[more ...] By oilman  On Mon Dec 13 2010, 07:32am
3 6054 kipper
Thu Mar 22 2012, 07:47am
Sticky Thread
[Sticky]
MOT Test 2012 changes
  There has been lots of discussion as to what will and won't be required from 2012 so if you want the[more ...] By Dave_Retired.  On Wed Oct 26 2011, 03:54am
1 6414 PentlandC4
Tue Jan 03 2012, 03:02pm
Sticky Thread
[Sticky]
Aftermarket HID headlamps. What you need to know. July 07
  HID = High Intensity Discharge, commonly known as Xenon, headlights.From the Dept for Transport, Dec[more ...] By BigJohnD  On Wed Jul 25 2007, 10:24am
3 7744 Dave_Retired.
Thu Feb 03 2011, 01:49am
Sticky Thread
[Sticky]
The Definitive Biodiesel Guide for your C4
  According to Citroen Sustainable Development Team as of September 2008, this is the guidance for run[more ...] By firebee  On Fri Sep 05 2008, 07:12am
13 10001 routemaster1
Sat Feb 20 2010, 11:31am
Closed Sticky Thread
[Sticky]
EGS Gearbox Classification
  I have spoken to DVLA (both Swansea and London) and neither organisation is sure how to classify the[more ...] By blueclouduk  On Wed May 07 2008, 05:05am
3 7618 The Lyonator
Mon Dec 08 2008, 03:27pm
 Forum Threads
Low boost....  5 psi is all I'm getting.So quick question..How does it work. 1.6 HDI. Seems to be a turbo unit, and[more ...] By Flateric999  On Mon Apr 22 2019, 04:29am
None 33 -
C4 Hatch 2005 Electrical  Hi all Wife has a 2005 1.6HDI C4, There is a problem with the headlight dip/main beam switch and wip[more ...] By SteveWalsh  On Sat Apr 06 2019, 06:00am
1 91 SteveWalsh
Sat Apr 20 2019, 12:45pm
SMEG5 updates  Hello all, Had my C4 Picasso on a (14 plate) for over a year now .I bought and installed sat nav up[more ...] By billboi  On Thu Apr 04 2019, 11:22am
None 82 -
Weird problem with alternator belt and tensioner.  Hi. Need some expertise opinion. Was driving along the highway. The alternator belt came off. When h[more ...] By SuperMajinBuu  On Wed Apr 03 2019, 12:03pm
None 83 -
Undercar rattle when closing any door (and boot)  I have recently noticed that when I close any door on my C4 that I hear a rattle which seems to be c[more ...] By cain93  On Mon Mar 11 2019, 06:19am
None 135 -
My C4 has started randomly "nudging" itself  So I own 2006 5 door hatchback, 1.6 HDi, semi-automaticLately it has started kinda nudging itself on[more ...] By Madagar  On Fri Feb 08 2019, 08:24am
4 344 Madagar
Sun Mar 10 2019, 11:07am
Rear brake discs - 2007 C4 1.6HDI Coupe  Hi all,I need to replace the rear brake discs & wheel bearings on my Loeb Coupe. There are two t[more ...] By CaptainSlow  On Tue Mar 05 2019, 05:17am
2 174 CaptainSlow
Tue Mar 05 2019, 01:00pm
Michelin Pilot Sport 4S  My front tyres were mismatched when I bought my car so I decided to replace them with Michelin Pilot[more ...] By Keith  On Sat Mar 02 2019, 11:15am
2 173 Keith
Sat Mar 02 2019, 01:16pm
New Owner a few teething issues - C4 2005 1.4 Coupe  Hi allJust grabbed myself a bargain car, it's low spec I know but I love it.I've tried searching for[more ...] By RocLobsta  On Thu Feb 07 2019, 02:23pm
3 263 Magistrate
Mon Feb 11 2019, 11:29pm
Side Light Flashing With Indicator  Hi All, I wonder if you guys have any answers. My daughter has a C4 Picasso on a 08 plate with a pro[more ...] By trainspotter375  On Wed Jan 30 2019, 11:40am
None 249 -
C4 SX HDi automatic gearbox fault  Hi AllAfter some advice! I have a 56 plate C4 SX HDi auto. Been told a support bearing in the gearb[more ...] By Tazmanfizbom  On Fri Jan 25 2019, 08:58pm
2 306 BigJohnD
Sat Jan 26 2019, 05:53am
No New Posts on Popular Thread
C4 Hatch tailgate wiring  HI......... I am a new member with a 2005 5 door hatch. the car has some issues with the rear wiper[more ...] By K9Alfie  On Thu Jul 12 2012, 08:14pm
11 6491 polszka
Tue Jan 22 2019, 01:41pm
TSB relating to fitting new spark plugs in Puretech engines  I have read that Citroen issued a silent recall in July 2018 to fit new spark plugs to all Puretech [more ...] By Cylvabirch  On Wed Jan 16 2019, 10:46am
1 309 gittos
Wed Jan 16 2019, 11:11am
Would 17 inch Citroen phoenix alloys be ok on a MK4 C4 1.6 90bhp vtr+ manual ?  Hi would 17 inch Citroen phoenix alloys be ok on a MK4 C4 1.6 90bhp diesel vtr+ manual ?In terms of[more ...] By Rizwan  On Thu Jan 10 2019, 08:33pm
2 320 Rizwan
Fri Jan 11 2019, 07:26pm
No New Posts on Popular Thread
Brake switch and additional loom for C4 VTR+ with ESP/ABS warning light  Have had what appears to be a common fault with the ESP/ABS light coming on until switch off. then r[more ...] By philrad  On Mon Jun 22 2009, 11:43am
Goto page: [ 1 2 3 ]
38 21174 rusky
Mon Jan 07 2019, 12:45pm
Alternator regulator C4 2004 1.6  Has anyone changed the alternator regulator before ? Any pics or step by steps ? I'm guessing that [more ...] By maf  On Thu Jan 03 2019, 11:19am
1 337 Coliliqui
Sat Jan 05 2019, 08:10am
Abs esp error  Hi iv recently been getting abs and esp error. It's intermittent sometimes it happens couple of time[more ...] By Rizwan  On Thu Jan 03 2019, 01:47am
4 424 Rizwan
Fri Jan 04 2019, 11:23am
Eurocarparts brake switch and extension harness to solve ABS and speed control error  I have fitted one of these Eurocarparts harness extensions plus a new brake switch to try and remove[more ...] By mikeconnectuk  On Tue Aug 22 2017, 06:42am
1 1576 Rizwan
Thu Jan 03 2019, 01:49am
No New Posts on Popular Thread
C4 HDi Oil in air intake pipe, normal?  Wonder if anyone could perhaps enlighten me to something which I've noticed on my VTR+ 1.6 Hdi. It h[more ...] By rowls  On Thu Apr 28 2011, 02:10pm
Goto page: [ 1 2 ]
18 36676 arsenije
Wed Dec 26 2018, 04:19am
Re LSD and gearbox options 1.6 HDi loeb  I'm looking at buying a 1.6hdi loeb, main question is what gearbox options are there if i was lookin[more ...] By Talbotsteve  On Tue Dec 25 2018, 04:01pm
None 371 -
C4 sx 1.4 petrol LPG converted showing unstable ECU orders  I bought c4 sx 1.4 2008 LPG converted and after couple KMs it started engine stopping when I stop au[more ...] By monther032  On Fri Nov 30 2018, 03:08am
None 397 -
Short stall during warm-up  Hi,I drive a 2006 C4 1.6 HDI manual gear box.Lately I have noticed a short stall (maybe half a secon[more ...] By jokr  On Fri Nov 23 2018, 05:14am
None 377 -
C4 coupe 05 power steering problem  I seem to be having a problem with my Citroen c4 vts 05 where the power steering works for like 10 m[more ...] By hilly  On Mon Nov 19 2018, 07:07am
1 389 FakeConcern
Mon Nov 19 2018, 10:54am
C4 1.4 Petrol 2006 Surging engine + other problems  So I bought this car a little under a year ago. It was fine for about a month and started gradually [more ...] By Curtislw  On Sat Nov 10 2018, 03:02pm
None 539 -
C4 5 door hatch 1.6 petrol gearbox problem  Hi all.Magnus in Iceland here, I am new to the forum.So I green lighted the purchase of a family mem[more ...] By maggip  On Mon Nov 05 2018, 10:35am
None 534 -
EGS Calibration in Diagbox  Hello all,I just got a 2008 C4P. It was juddering at low speeds, fairly violently sometimes I though[more ...] By hazboss  On Fri Jul 27 2018, 11:24am
4 1228 rusky
Tue Oct 30 2018, 05:36pm
1.6 HDI 9HZ injector problem  Hi Folks,I have a 2006 Citroen C4 with the 1.6 HDI 110 bhp engine. VIN no is VF7LA9HZH********The ca[more ...] By TSB  On Tue Oct 30 2018, 04:57am
4 663 TSB
Tue Oct 30 2018, 08:23am
C4 hatch 2005 2.0 HDi EGR issues  Car as per the subject.Symptoms - car is juddering when under medium acceleration. Feels like air in[more ...] By Mkaminski100  On Thu Oct 25 2018, 06:27pm
None 488 -
Electrical Experts, I need your help - A relay to delay power for 5-10s?  2005 Citroen C4 - I have had an issue with the AC blower fan not working, though the actual AC was o[more ...] By Valleriani  On Mon Oct 22 2018, 07:07am
3 601 Valleriani
Tue Oct 23 2018, 03:07pm
C4 racing steering wheel  Hi, I've just bought a 2005 C4 2.0 VTS Coupe that I'm going to convert to race spec for the MSVR TT [more ...] By Mattcortes  On Sat Oct 20 2018, 01:21pm
1 515 wozza
Tue Oct 23 2018, 10:13am
Electrical Connections (Front NS Side Light)  Hi All,Ive been tarting up my C4 Loeb for a few weeks, looking good until today. Quick check of ligh[more ...] By CalumX999  On Tue Oct 23 2018, 05:18am
None 494 -
C4 stepper motor?  Hi all,I have a 2005 C4 hatchback 2.0 tdi exclusive, it has dual climate control. I only bought the[more ...] By clarke  On Fri Jul 29 2011, 03:00pm
8 3522 Leo_Rincon
Sat Oct 13 2018, 09:56pm
'Error in communication'  Help! I bought the daughter a C4 Picasso because she said that her C3 was to small. I picked up a 20[more ...] By v10phil  On Sat Oct 13 2018, 02:02pm
None 553 -
2011 C4 GP 2.0 hdi (150bhp) EGR valve help, Where is it?  Hello, I have a 2011 C4 GP 2.0 HDI 150hb that has gone into limp mode. My cheap scanner gives the f[more ...] By RDanny  On Sun Sep 16 2018, 02:30pm
1 633 rusky
Sun Sep 16 2018, 03:14pm
Changing the clutch on my driveway 1.6HDi  Just changed the clutch on my 1.6HDi(90).... well, it took me 3 days!Luckily, I didn't need any spec[more ...] By HansZarkov  On Tue Sep 04 2018, 06:31am
4 830 HansZarkov
Tue Sep 04 2018, 02:12pm
Engine carbon clean  Has anybody got any comments on carbon clean on 2.0HDi C4 Picasso 82.5k miles 2011 plate? By derbyshire1970  On Sun Aug 19 2018, 02:20am
1 682 looxuser
Tue Aug 21 2018, 04:56pm
Timing belt area louder after timing belt change  Hi people,I changed the timing belt on my 2010 1.4 (ET3j4) some three weeks ago. I used a febi bilst[more ...] By davemaster  On Thu May 24 2018, 01:16am
2 931 looxuser
Tue Aug 21 2018, 04:46pm
Help with C4 parking sensor and Depollution errors  No, not the bomb. The Citroen! My mum's 2004 C4 1.6HDi VTR+ has had its "engine pollution" message o[more ...] By CaptainJack  On Tue Feb 04 2014, 08:24am
8 4938 CaptainJack
Wed Aug 15 2018, 03:04am
Navidrive RT3 2006 Citroen C4  Hi all....I'm new to here and to owning a citroen. I have a couple of problems so far that i hope m[more ...] By cmj3765  On Thu Aug 09 2018, 06:19am
None 697 -
What is this loose white connector near my pedals ?  I've only had my mk1 c4 for a few weeks now, so getting around to looking at things more carefully. [more ...] By AllEuan  On Thu Jul 12 2018, 11:36am
4 941 riven1962
Fri Jul 20 2018, 12:56pm
Noises when idle  Hi allI have a question about noises coming from the car.When sat in idle there is this buzzing soun[more ...] By Armaghgeddon88  On Mon Jul 16 2018, 05:28am
2 768 Armaghgeddon88
Mon Jul 16 2018, 08:50am
Abs esp module  Is anybody able to tell me if part 4542k6 or 4542k7 is a replacepmet for my Abs ecu for a 08 1.6hdi [more ...] By BigIll  On Thu Jun 28 2018, 06:31am
None 757 -
Handbrake faulty  C4GP 2007 2l HDi, changed back pads, now coming up code 555a force sensor that I can't clear? Where [more ...] By Rab147p  On Thu Jun 14 2018, 02:38pm
1 869 Rab147p
Fri Jun 15 2018, 10:05am
Lexia/Diagbox on 2007 C4 for TPMS?  Well I finally got Lexia up & running.Selecting the Lexia option, I was rather disappointed to s[more ...] By jaizan  On Tue May 29 2018, 02:44pm
1 934 rusky
Tue May 29 2018, 03:25pm
Agh this is driving me crazy - DS4 washer bottle  So I bought a damaged DS4 and slowly rebuilding bit by bit. Struggling to find what the water bottle[more ...] By Thedvdmonster  On Wed Mar 28 2018, 09:32am
5 1470 Thedvdmonster
Thu Apr 19 2018, 03:13am
Direction Indicator Issue  Hi All.Need some help please.I have a 2013 C4 Picasso Exclusive Airdream and I have a Service light [more ...] By tonyvan  On Sun Apr 15 2018, 05:11pm
4 1088 tonyvan
Mon Apr 16 2018, 02:06pm
C4 2009 - ESP ECU Location  HiDoes anyone know if the ESP has a dedicated ECU ? If yes where is it located ?Thanks By CitroenZX  On Tue May 17 2016, 01:30pm
1 1623 acland
Mon Apr 16 2018, 11:27am
c4 1.4 2006 hatch coil pack error/ cuts out  hi i usualy fix my cars but this one as got me baffled, anti pollution and bleep then engine cuts ou[more ...] By carmadrob  On Sat Apr 14 2018, 01:09pm
None 947 -
Interior lights on a VTS  HelloI've bought a used c4 VTS and interior lights (ones that light up when doors are opened, both f[more ...] By Cutac  On Sat Mar 31 2018, 02:02pm
2 1049 Cutac
Sat Mar 31 2018, 02:43pm
C4 ventilation problem  Hi. I own a 2009 hatch C4 1.4 with automatic aircon. The problem is that none of the servomotors fro[more ...] By razvanlb  On Sun Mar 25 2018, 03:51am
3 1185 razvanlb
Wed Mar 28 2018, 04:14pm
Does this look right to you? Heater/fan blower  The motor driving the fan/blower is so noisy. Not only this but i think an asthmatic could breath wi[more ...] By Arwing  On Tue Mar 20 2018, 12:16pm
4 1232 Arwing
Tue Mar 27 2018, 09:04am
Limp mode and EML dealer struggling  Hello all, I was wondering if anyone can help me and the Citroen dealership. I have a Citroen C4 pet[more ...] By Tinymartin  On Sat Mar 24 2018, 09:46am
None 1086 -
Citroen C4 VTR petrol 2005  Hi all,Currently having problems with above car (arrrgh), here goes - anti pollution fault, changed [more ...] By gazzy  On Fri Mar 23 2018, 12:57pm
None 1008 -
Fuel Smell When A.C is on  helloi have C4, 2010 1.6 Petrol.A few days ago i noticed Fuel smell when i turn on the a.c?the smell[more ...] By baselc4  On Thu Mar 22 2018, 04:35am
1 1095 rusky
Thu Mar 22 2018, 05:50pm
How to remove cables from radio  Hello I own a c4 model 2007 a want to remove the radio to install another .I removed the radio with [more ...] By Koslinx  On Sun Mar 18 2018, 07:38am
1 1193 rusky
Sun Mar 18 2018, 09:46am
EGS Sports Mode  I recently purchased a 2009 C4 1.6 HDI VTR+ EGS and have just discovered the sports mode doesn't wor[more ...] By Hopwood4895  On Thu Mar 15 2018, 04:31am
None 1063 -
Crankshaft sensor  Hi Diagnostic tool shows a P0341 fault - crankshaft sensor fault - I have a c4 vtr+ 2007 - I have lo[more ...] By netpal1  On Mon Jan 22 2018, 03:51pm
1 1605 rusky
Tue Jan 23 2018, 01:42am
Diagnostic / fault readers?  I'm new to modern cars but have quickly realised a diagnostic machine is essential. Can anyone recom[more ...] By Arwing  On Tue Jan 09 2018, 02:49am
4 1628 Arwing
Tue Jan 09 2018, 11:03am
No New Posts on Popular Thread
Heater motor not working please help.  Help please, I'm losing hair now right the heater fan just suddenly stopped ok so I'm looking at a r[more ...] By Jutty3  On Tue Nov 18 2014, 08:17am
Goto page: [ 1 2 ]
18 14641 ark50
Thu Jan 04 2018, 01:35pm
C4 2012 GP 1.6hdi airfdream 35000 mile service  Hi all.I’m hoping someone can please offer some advice. Our now 5 year old GP 1.6hdi is due its annu[more ...] By Colls10  On Wed Jan 03 2018, 04:19pm
2 1535 FrankBullitt
Thu Jan 04 2018, 06:12am
Headlights  Is my 2009 Grand Picasso eligable for upgrade to xenon bulbs. Which are the best buy By cueball  On Fri Dec 22 2017, 11:32am
2 1537 Keith
Fri Dec 22 2017, 02:43pm
diesel glow plug light  My Citroen C4 Grand Picasso does not seem to have a glow plug warning light. Any ideas. By cueball  On Sun Dec 17 2017, 05:35am
1 1816 routemaster1
Sun Dec 17 2017, 05:46am
Xenon Headlight Error. Now are too high but working  Hi, I have an '05 5 door 2.0 HDi Exclusive with the xenons. I have recently been getting an error st[more ...] By damgood2k  On Tue Dec 12 2017, 02:14pm
7 1566 Ham
Sat Dec 16 2017, 10:41am
Reverse light switch location?  Hi all,Having searched "te tinternet" (I am Yorkshire) I can't seem to find the location of the reve[more ...] By Soundwave740  On Mon Jan 25 2016, 04:45am
5 3099 Bikeryamaha
Sun Dec 10 2017, 12:32pm
C4 VTS 180bhp started cambelt change but didn't lock crank....  Hi all,I've just bought a 2005 C4 VTS 180 and as it has 89k miles and no record of cambelt change I [more ...] By tim123  On Sun Nov 19 2017, 02:08pm
3 1939 FakeConcern
Tue Nov 28 2017, 03:17pm
C4GP 2009 - EGS Gearbox ECU pin layouts / error P0563  Greetings all,My partner's got a C4GP 7 seater 2009 with the Prince 150bhp engine, but died this mor[more ...] By mwj666  On Mon Nov 20 2017, 03:24pm
None 1510 -
C4 VTS broke down and motorway and now no start. ESP error ?  Hello AllI have a VTS 180 which I adore! I've had it a few months and bar the parking sensors not wo[more ...] By schnick18  On Wed Nov 15 2017, 03:26pm
4 1840 KenC
Thu Nov 16 2017, 04:09am
No New Posts on Popular Thread
Heated mirrors installation  I have electrically adjustable door mirrors. I am interested to know if I have already built an elec[more ...] By casesensitive  On Sat Apr 28 2012, 10:13pm
10 3776 AArmin
Tue Nov 14 2017, 06:18am
Headlight on when stick switched off  Hi, and sorry if this has been resolved somewhere tried all day find anything to no luck. Driver sid[more ...] By Vohngar  On Sun Oct 29 2017, 02:26pm
5 1806 Vohngar
Wed Nov 01 2017, 04:05pm
Gear box - occasional slight crunch into 3rd  Evening, Purchased a 2008 1.6 C4 (Loeb), literally two days ago. I've noticed that when changing do[more ...] By addsmith  On Wed Oct 25 2017, 05:21pm
None 1581 -
Go to page       >>  

Jump to forum:     Back to top

1 user is browsing this forum at the moment (0 members, 1 guest)
New Posts New posts No New Posts No new posts Sticky Thread Sticky Announcement Thread Announcement
New Posts on Popular Thread New posts [popular] No New Posts on Popular Thread No new posts [popular] Closed Sticky Thread Sticky/Closed Closed Thread Closed thread
You cannot start new threads - You cannot post replies - You cannot edit your posts