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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 3531 kipper
Thu Mar 22 2012, 07:47AM
Sticky Thread
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 Web Admin Only  On Wed Oct 26 2011, 03:54AM
1 4148 PentlandC4
Tue Jan 03 2012, 03:02PM
Sticky Thread
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 5211 Web Admin Only
Thu Feb 03 2011, 01:49AM
Sticky Thread
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 6593 routemaster1
Sat Feb 20 2010, 11:31AM
Closed Sticky Thread
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 5314 The Lyonator
Mon Dec 08 2008, 03:27PM
 Forum Threads
2005 C4 2.0HDI hatch coolant leak- advice on likely problem area  Hello,My normally reliable trusty C4 has developed a sudden serious coolant loss, ie the head tank c[more ...] By ken1202  On Wed Feb 15 2017, 05:12PM
3 88 KenC
Thu Feb 16 2017, 01:46PM
Need 2nd hand ECU kit 1.4 VTR petrol  Hi folks, my ECU is fecked. I'm looking for a matching ECU, engine fuse box, BSI and key matching th[more ...] By Modm  On Thu Feb 02 2017, 05:46AM
1 82 Mrfixit
Thu Feb 02 2017, 04:21PM
Temperamental A/C Coolant Temp Sensor Part Number  Hi Guys,I am having very intermittant A/c in my 2010 C4 VTR LA_ Coupe that has an EP6C (5FW) fitted [more ...] By Jono.Williams  On Sun Jan 29 2017, 10:27PM
None 65 -
PP2000/Diagbox Lexia 3 to check PDC and disable tyre pressure monitor?  Hello,I have a 2008 Citroen C4 1.6 HDi, but having some occassional problems with the parking sensor[more ...] By roomster  On Sat Jan 21 2017, 06:06AM
1 114 Biohead
Sat Jan 28 2017, 11:30AM
Manual gearbox type  Hi!My 1.6 2005 vtr petrol has N type gearbox. Could anyone give a hint how to find out which is the [more ...] By Riukka  On Tue Jan 24 2017, 10:26AM
5 142 BigJohnD
Wed Jan 25 2017, 05:54PM
Carplay help  CARPLAY....Please help So I just got a 2016 C4 flair BlueHDI 120 which says in the book that I hav[more ...] By PTS-0180  On Sun Jan 22 2017, 06:14AM
2 119 PTS-0180
Mon Jan 23 2017, 03:38AM
Coupe HDiF turbo issues  So I have been struggling with this issue for a while now.Last year I got the DPF failure light in m[more ...] By kay81290  On Sun Jan 08 2017, 06:21AM
8 240 rusky
Sat Jan 14 2017, 07:12AM
C4 Grand Picasso 2016  Hello Experts..i would like to enable the MPS on my car screen, how can i download and activate this[more ...] By ahmed85  On Fri Jan 13 2017, 01:59PM
1 99 BigJohnD
Fri Jan 13 2017, 02:54PM
Wires under oil filter  Hi all,re C4 hatch 2008Just wondering what the wires that enter under the oil filter are. There is a[more ...] By Tony123  On Fri Jan 13 2017, 12:55AM
None 88 -
Light bulb headache HELP!  Hi there, I own a coupe and wanted to change the tail light bulbs with LED type and can't seem to fi[more ...] By NikolaH  On Mon Jan 02 2017, 03:24AM
1 122 rusky
Mon Jan 02 2017, 04:04AM
Installing cone air filter using standard airbox/piping  Hi all, I have been looking into getting a new cone filter (probably K&N) for my 2005 1.6i VTR. [more ...] By tommyleed  On Sun Jan 01 2017, 02:06PM
None 108 -
Removing / cleaning the Intercooler on a C4 1.6 HDi 2007  I have the well documented problem with oil in the air intake system. Last night I removed the doseu[more ...] By jimbob1979  On Tue Jun 14 2016, 04:33AM
4 655 stevjull2017
Sat Dec 31 2016, 06:50AM
MAF Sensor replacement and black smoke  It's a Citroen C4 1.6HDi diesel (2006), hatchback 5doors. Few days ago when I changed my air filter [more ...] By love2drive  On Sat Dec 17 2016, 03:21PM
6 240 love2drive
Mon Dec 19 2016, 04:49AM
Ignition System  My question is regarding a 2006 C4 VTS Coupe 180bhp with the EW10J4S engine, does this car have a ''[more ...] By Redfive05  On Mon Sep 05 2016, 05:09PM
1 294 Redfive05
Wed Dec 14 2016, 01:00PM
Poor mpg on 1.6i 16v VTR. Also slight loss of power when accelerating  Hi all, first post here but have been a member for a few months now. My C4 coupe (2005 1.6 petrol 10[more ...] By tommyleed  On Sat Dec 10 2016, 11:33AM
4 217 tommyleed
Sun Dec 11 2016, 05:51PM
Rear door still opens when after car is locked  I've just bought a 2004 C4 2.0 VTR+ and, for the most part, it's a real good clean car for the age. [more ...] By tvr1982  On Fri Nov 11 2016, 02:17PM
1 201 bkod
Thu Dec 01 2016, 05:13PM
Clutch housing removal C4 1600 HDi VTR+  Help....Trying to remove clutch housing and gearbox, for replacement.removed all bolts, including na[more ...] By stue  On Sat Nov 26 2016, 11:00AM
2 211 stue
Sun Nov 27 2016, 11:28AM
Wiring cables from bonnet to inside the car  HiI have Citroen C4 1.6 SX HDI 2007 model car.Recently I have installed rear parking sensors that is[more ...] By xbot  On Sun Oct 16 2016, 09:31AM
2 258 wozza
Mon Nov 21 2016, 11:24AM
C4 1.6HDi wont start  I'm new here and hoping to get some ideas as to where to look next.I have a 2006 C4 1.6HDi EGS. It c[more ...] By Rennie  On Sun Nov 20 2016, 12:15AM
None 173 -
Citroen 4 rear hub nuts 32mm socket type help  Hi I've recently changed my rear discs and pads on my Citroen C4 1.6SX 05 plate and the supplied hub[more ...] By Chippee  On Fri Nov 11 2016, 11:04AM
4 296 Chippee
Wed Nov 16 2016, 12:58PM
Hi, just bought the car (privately, so no comeback) as it accommodates wife's electric wheelchair ea  Hi, just bought the car (privately, so no comeback) as it accommodates wife's electric wheelchair ea[more ...] By Jacqui13  On Thu Nov 10 2016, 04:05PM
1 168 rusky
Thu Nov 10 2016, 04:52PM
Fuel pump quick question  Car: 2006 C4 1.6HDi 90 bhp I have a problem with low fuel pressure and my car won't start. The fuel [more ...] By nickcurtis  On Sun Nov 06 2016, 08:23AM
4 235 nickcurtis
Tue Nov 08 2016, 12:09PM
C4 Electrical Issue - Engine not starting  Hello guys.Can you please help me with an issue on my Citroen C4 1.6 HDi? I have a problem since a w[more ...] By vladd.alex  On Thu Nov 03 2016, 12:39AM
None 207 -
No New Posts on Popular Thread
Additional Heater  Hi I wonder if you could help me with information regarding the C4 GP.The common rail engines are de[more ...] By C4GPEXL  On Fri Jan 28 2011, 09:36AM
12 2587 mopowah
Mon Oct 24 2016, 04:47PM
C4 HDi pre 2010 starting circuit, low power to solenoid.  Good day allSorry to creep back like this after been gone for so long, was busy with some other proj[more ...] By Zedd  On Fri Oct 07 2016, 10:19AM
None 209 -
EGR Valve knackered?  Hi,My '06 C4 VTR+ coupe 1.6 HDi (non dpf) has just ticked over 180k miles and has developed what I t[more ...] By fenderblast  On Sun Sep 11 2016, 12:12PM
2 364 fenderblast
Tue Sep 20 2016, 04:18PM
2005 C4 2.0 HDi - Nut & Bolt for rear shock part number?  Hi all,Just about to replace the rear shocks on my C4 and I was wondering if anyone can give me the [more ...] By trembling_blender  On Tue Sep 20 2016, 05:02AM
2 205 trembling_blender
Tue Sep 20 2016, 05:27AM
Power sources  In C4 Hatchback 2007 SX model, I am intending to install parking sensors and reverse camera.Where ca[more ...] By xbot  On Wed Sep 14 2016, 06:51AM
None 238 -
Replacing with electric car seat  I have C4 SX which has manual-adjusted car seat, that will be replaced with electrical seats.Is ther[more ...] By xbot  On Thu Sep 08 2016, 11:14AM
None 252 -
Indicator wiring  Hi guys, just changed my C4 GP for a 2013 C4 petrol automatic and have fitted LED running lights uni[more ...] By eddyspetey44  On Wed Sep 07 2016, 12:53PM
None 237 -
outside temp sensor  hello people I'm after some help getting to the outside temp sensor in the mirror have taken the gla[more ...] By martinc4  On Sun Sep 04 2016, 01:19AM
None 218 -
No New Posts on Popular Thread
2005 auto aircon fan problem  Hi!I have the following problem: the aircon fan of my '05 petrol hatch stopped working. This is an a[more ...] By gsa1300  On Sat May 28 2016, 03:20PM
11 719 gsa1300
Thu Sep 01 2016, 12:44PM
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 ]
17 4236 gsa1300
Tue Aug 30 2016, 12:22PM
Help for a non technical person (multiple Issues)  Hi Guys, I'm looking for some advice to see if anyone has had similar issues previous and how best t[more ...] By FutureVTS  On Tue Aug 30 2016, 04:50AM
1 277 KenC
Tue Aug 30 2016, 06:32AM
C4 1.6 16v - headlights pulsing  Hello,I have a problem with my car and no one was capable to solve it yet.Citroen C4 1.6 16v, 2008, [more ...] By Charles  On Fri Aug 19 2016, 12:57PM
7 427 Charles
Wed Aug 24 2016, 10:41AM
C4 1.4 16v - Lamda Issues - help!  Hi Everyone,A bit of background:When you start the car for the first 15 seconds it's fine, then it'l[more ...] By Starbuck88  On Tue Aug 23 2016, 04:36AM
4 283 Starbuck88
Tue Aug 23 2016, 01:48PM
Citroen C4 B7 2011 - lost USB, Bluetooth, Sound, Middle buttons (radio system). Can't find fuse.  Anyone know where they are located in fuse box? Can't find any information from internet. By e1mar  On Mon Aug 22 2016, 02:22AM
1 269 BigJohnD
Mon Aug 22 2016, 06:31AM
Service light then loss of power  Hiya, got a 2004 1.6 petrol coupe.lately, the car without warning the service light comes on, usuall[more ...] By Philz0r  On Mon Aug 08 2016, 12:33PM
3 350 Charles
Sun Aug 21 2016, 04:57AM
No New Posts on Popular Thread
06 C4 VTS HDi lacking boost  Hello,I recently bought a C4 VTS HDi with the 2.0 16v HDi with the DW10BTED4 RHR 16 Valve engine [more ...] By ham_vts  On Wed Feb 25 2015, 05:34PM
Goto page: [ 1 2 ]
21 5137 BigJohnD
Tue Aug 16 2016, 10:37AM
2005 Citroen C4 Heater Matrix 'O' rings  Sorry if this is in the wrong forum. I've searched but can't find exactly what I'm looking for, alth[more ...] By Dobbin  On Tue Mar 15 2016, 02:47AM
3 789 riven1962
Sun Aug 14 2016, 06:18AM
Cylinder Head C4 VTS Coupe  Cam belt broke yesterday and I'm having a problem getting the head off. It seems to be still attache[more ...] By Redfive05  On Sun Aug 07 2016, 03:23AM
1 303 rusky
Sun Aug 07 2016, 04:42AM
Need some help!  Brought a C4 VTR+ couple weeks ago and I love it but recently I have discovered 2 problems with the [more ...] By MaciejGoldyn  On Sat Aug 06 2016, 03:25PM
None 231 -
2005 Citroen C4 VTS HDi EGR problems  Hi,I have been having some problems with my C4 VTS HDi, I have been trying everything to sort it out[more ...] By Richard85  On Tue Aug 02 2016, 01:25PM
1 309 Richard85
Wed Aug 03 2016, 11:28AM
C4 HDi Turbo Oil Flow  I have recently purchased a C4 1.6 HDi and just before I bought it the previous owner had had the oi[more ...] By jimbob1979  On Thu Jul 28 2016, 09:38AM
6 462 jimbob1979
Mon Aug 01 2016, 03:57AM
Manual gear to e6g gear  Hello I have a 2005 C4 1,6HDi 110hp and I would like to rebuild it to one with a e6g gear boxBut wha[more ...] By Frankmich  On Wed Jul 27 2016, 01:32AM
2 353 Frankmich
Thu Jul 28 2016, 12:34AM
No New Posts on Popular Thread
1.6HDi power loss at 3000rpm  My C4 1.6HDi has been running fine since replacing the turbo but the other night I overtook a slow m[more ...] By Bert  On Fri Jan 22 2016, 11:22AM
11 1157 Bazlar
Thu Jul 14 2016, 04:29AM
Directional Headlight Fault  Citroen C4 2006 2.0 HDI ExclusiveHi, trying to narrow down the Auto adjustment/directional fault. Th[more ...] By Swebby  On Sun Jun 19 2016, 07:56AM
4 625 FakeConcern
Mon Jul 11 2016, 04:05PM
No Air-Con?  So I got the Air Con on my 2007 1.6HDi Coupe regassed on Wednesday. I noticed it was cool but not co[more ...] By Homer09001  On Sun Jul 10 2016, 01:20AM
2 2453 Homer09001
Sun Jul 10 2016, 05:10AM
No New Posts on Popular Thread
Rotating Wheels/Tyres on VTS 180 (Tyre Pressure Sensors)  Hi All,I would like to move the rear wheels/tyres to the front and the front wheels/tyres to the rea[more ...] By colinh  On Mon Mar 29 2010, 04:41PM
10 2399 Biohead
Sun Jul 03 2016, 01:20PM
Oil Leakage  C4 2007 1.6 HDI VTR 110I have recently replaced the cam cover seal hoping to cure an "oil leak". How[more ...] By Swebby  On Sat Jun 25 2016, 10:31AM
None 343 -
No New Posts on Popular Thread
Noisy tappets on cold start up - 1.6 16v petrol!  Hi all,I have a 1.6 16v petrol, TU5JP4 engine (2005).Purchased just 3 months ago. 33,000 miles with [more ...] By bluebubble  On Mon Feb 01 2016, 01:20PM
Goto page: [ 1 2 3 ]
31 3428 bluebubble
Sun Jun 19 2016, 11:52AM
Electrical issue  Hi everybody, I'm having a strange electrical problem with my C4 1.6 (TU5JP4).These lights stays on [more ...] By nooredin  On Tue Jun 14 2016, 12:26AM
2 419 nooredin
Wed Jun 15 2016, 06:19AM
[moved] P0658  I have a 2007 C4 with the above fault code. A mobile mechanic has told me the actuator sensor needs[more ...] By Kal  On Sat May 28 2016, 08:44AM
1 423 niggly56
Sun May 29 2016, 01:13AM
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 ]
32 11397 JVT
Thu May 19 2016, 03:12PM
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
None 389 -
cam shaft snsor c4 1.6 hdi 110 bhp  hi ive had diagnostics done on my c4 Picasso tells me I need camsensor has any body out there got an[more ...] By phillpot  On Sun May 15 2016, 03:37PM
None 400 -
Help please with front wheel arch plastic trim removal 08 C4 Picasso 1.6HDi EGS  Trying to check actuator contacts and oil level as having problems with gear selection I've when in [more ...] By rickblake  On Wed Apr 27 2016, 08:34AM
5 621 rickblake
Fri Apr 29 2016, 06:25AM
Preheat relay fuse location help!!  Can anyone tell me where the fuse for the glowplug/preheat relay is located.I do not have +12v in th[more ...] By Frankmich  On Mon Apr 25 2016, 02:05PM
1 802 Frankmich
Wed Apr 27 2016, 12:07PM
Stabiliser link rods  Hello,This might be a stupid question, but I need to replace stabiliser link rods (hope the name is [more ...] By Joply  On Tue Apr 26 2016, 03:28AM
1 540 gmerry
Tue Apr 26 2016, 05:09AM
Citroen C4 Coupe rear light failure  Today I was pulling into school when the right indicator started flashing much faster than usual so [more ...] By nick3751  On Tue Apr 19 2016, 09:27AM
2 613 riven1962
Thu Apr 21 2016, 03:27PM
Citroen C4 1.6 HDi engine dead  Hello everyone. I have a big problem with my Citroen C4 1.6 HDi, 90 HP, and I am writing here thinki[more ...] By vladd.alex  On Thu Apr 14 2016, 11:57PM
3 755 vladd.alex
Mon Apr 18 2016, 12:55AM
Citroen C4 Dual Mass Flywheel  Hi,I'm new to the forum and would like to ask a question about my Citroen C4.It's a SX Model, 1.4L P[more ...] By AndrewLincoln  On Thu Mar 24 2016, 02:00PM
2 727 Web Admin Only
Sat Apr 16 2016, 04:41AM
C4 standard headlight replacment to Xenon  Hi,I can't find any topics regarding this problem.I bought xenon headlight units and just tried to c[more ...] By SLA  On Wed Sep 03 2014, 05:17PM
8 3022 Biohead
Mon Apr 11 2016, 11:31AM
C4 HDi - No boost at all!  Not another bl**dy thread about turbo boost on a C4 HDi!Long story but I really need some help under[more ...] By wozzlegummich  On Tue Apr 05 2016, 04:46PM
1 607 gmerry
Tue Apr 05 2016, 05:30PM
Flashing steering wheel panel lights  Got a 2006 VTR+ coupe and just filled up at the petrol station... When I started the car, everything[more ...] By Motte  On Tue Mar 20 2012, 03:37PM
2 1678 rowtrak098
Sat Mar 26 2016, 05:04AM
C4 coupe 2005 heater controls and stereo  Hey guys, my first on this forum and have been browsing for a while now. Would firstly like to say o[more ...] By killa_007  On Sun Mar 20 2016, 11:56AM
3 694 BigJohnD
Sun Mar 20 2016, 05:32PM
Installing directional Xenon headlamps  HiI have a C4 THP make year 2009. My car comes without Xenon headlights. I can get a pair of C4 orig[more ...] By CitroenZX  On Sat Mar 12 2016, 09:51AM
5 954 ksibbons
Sat Mar 19 2016, 10:58AM
RaceChip - For THP engine  Hi Has anyone installed a RaceChip piggy box on a car with THP engine? Does it make any difference? [more ...] By CitroenZX  On Sat Mar 05 2016, 01:37AM
4 876 wozza
Thu Mar 17 2016, 06:28PM
C4 THP - Error code FC83 and F4BA  HiI hooked a Lexia to my C4 ( make year 2009 ) THP and read the error logFC83 Transponder aerial fau[more ...] By CitroenZX  On Thu Mar 17 2016, 05:35AM
None 643 -
C4 THP make year 2009 - Installing front parking sensors  I have a C4 THP make year 2009. My car is originally fitted with rear parking sensors. I want to ins[more ...] By CitroenZX  On Sat Mar 12 2016, 10:05AM
3 746 CitroenZX
Thu Mar 17 2016, 05:14AM
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