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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 6723 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 7073 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 8433 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 10884 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 8343 The Lyonator
Mon Dec 08 2008, 03:27pm
 Forum Threads
Rear wiper relay?  Hi all.Having a problem with my rear wiper. Out of nowhere it just decided to turn itself on and has[more ...] By Arwing  On Wed Dec 04 2019, 12:36pm
None 76 -
Rear brake discs  Hello everybody,I've got my parents rear pads and discs to replace while they are away on holiday. J[more ...] By Nickrachel  On Wed Nov 27 2019, 04:12am
6 169 DeuxChevaux
Thu Nov 28 2019, 03:19pm
Back passenger door  Hi, I am new here so please bear with me.Does anyone know if the rear door, drivers side of the C4 1[more ...] By sh33na  On Thu Nov 14 2019, 05:10am
None 129 -
Heater actuator  Hi I have a 2014 grand picasso with dual climate control. The passenger side gets really cold and h[more ...] By tosh1984  On Sat Oct 12 2019, 03:36pm
1 240 Mjd700
Wed Nov 13 2019, 05:27am
C4 2.0 hi running rough  Hi Any one give me some pointers my C4 has been running rough on tick over, like a misfire also give[more ...] By Adept12  On Thu Nov 07 2019, 04:10pm
1 147 rusky
Thu Nov 07 2019, 04:26pm
Citroen C4 VTS HDi EGR and Turbo Solenoid  Hi all. Down the front of the engine there are two solenoids, one is for the turbo and the other is [more ...] By Brucey  On Wed Oct 30 2019, 12:28pm
None 166 -
URGENT: Citroen C4 Coupé 2007 1.6 HDI VTR  Hello,I am an owner of Citroen C4 Coupé 2007 1.6 HDI VTR (174000 Km).All the maintenance has been do[more ...] By motahoun  On Tue Oct 22 2019, 08:28am
2 241 motahoun
Fri Oct 25 2019, 03:40am
No New Posts on Popular Thread
Fuel pump relay fault on 1.4 petrol  Hi, was wondering if you could help me out. Car won't start and it's been traced to a faulty relay c[more ...] By BD7791  On Mon Dec 03 2012, 04:29pm
11 17182 Alps
Wed Oct 23 2019, 04:42pm
Stepper Motor  Does the EW10J4S engine in the C4 VTS 180 have a stepper motor/idle control valve and if so where is[more ...] By Redfive05  On Thu Oct 17 2019, 03:23pm
2 242 rusky
Sun Oct 20 2019, 05:11am
VTS 180 5/30w or 5/40w  Hey all recently new here. Can't find a definite answer on the search button as some say 5/30w and 5[more ...] By AndrewVTS  On Sat Jul 15 2017, 07:00pm
4 2302 Redfive05
Sat Oct 19 2019, 05:13pm
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
4 2359 Redfive05
Sat Oct 19 2019, 05:09pm
No New Posts on Popular Thread
Headlamp washers not working (not the pump or fuse)  Hi, I'm having problems with the headlamp washers, they've never worked since I got the car. I check[more ...] By steely  On Wed Dec 18 2013, 10:28am
Goto page: [ 1 2 ]
20 8040 LoungeBoy
Sun Oct 06 2019, 03:59pm
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
2 3812 frydendahl
Fri Sep 20 2019, 05:33am
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 ]
21 43062 Axa
Thu Sep 19 2019, 02:23pm
C4 2007 1.6 HDI EGS gearbox problems.  My first post here. I have a 2007 C4 that has done about 240.000km.I have had some problems with the[more ...] By sm7tjc  On Sat Jul 27 2019, 06:35am
3 495 sm7tjc
Sun Aug 25 2019, 04:42pm
C4 Coupe O/S Quarter Light Window  I own a 2005 C4 Coupe is the quarter light window the same for both the 3 door coupe and the 5 door [more ...] By Skidlid  On Wed Aug 21 2019, 05:30pm
None 313 -
C4 VTR 2006 2.0i sensor location LHD  Hi all,My very first post in this forum, recently being the proud owner of a VTR. I have started t[more ...] By Finnmats  On Fri Aug 09 2019, 09:10am
None 365 -
C4 1.6 HDI 2006 Air filter box  Hello, I want to ask, is there any particular reason why the air filter box to be behind the engine?[more ...] By Kangiev  On Fri Jul 26 2019, 07:02am
1 435 rusky
Fri Jul 26 2019, 09:05am
Citroen C4 Grand Picasso 2008  Hi I'm new new to this and new to having a Citroen C4 Grand Picasso 2008 . I had all these faults co[more ...] By Scarfinc81  On Sun Jul 21 2019, 10:34am
1 437 iscom
Sun Jul 21 2019, 11:40am
9649846780 Alternator help (C4 GRAND PICASSO)  Hi all. First time posting here so hopefully I can get the answers I need. I have an alternator from[more ...] By Hrp81134  On Thu Jun 27 2019, 11:47pm
2 513 Hrp81134
Fri Jun 28 2019, 01:03am
Dual Mass Flywheel - how to assess condition  Hi, my 2005 c4 needs replacement clutch - i've pulled the clutch out and found the flywheel to be in[more ...] By shanowells  On Wed Jun 26 2019, 01:01am
None 497 -
C4 Coupe RPO code from VIN PLEASE  Hi all i have a C4 vts 2.0 hdi lots of little issues most i think i can sort i also have a lexia 3 s[more ...] By Adept12  On Sun Jun 23 2019, 08:51am
1 492 BigJohnD
Mon Jun 24 2019, 04:59am
2005 C4 Hdi 1.6l changing clutch - separating transmission from engine  Hii'm replacing clutch in 2005 C4 Hdi 1.6l. Have finally removed start motor, clutch slave, etc etc[more ...] By shanowells  On Thu Jun 06 2019, 10:17pm
1 542 SteveWalsh
Sat Jun 08 2019, 01:07am
error messages  My 2012 C4 Picasso has done 26,000 miles.on a recent trip, I got a message, and 3 beepwarning that m[more ...] By lorryload  On Tue Jun 04 2019, 04:03am
1 518 Magistrate
Tue Jun 04 2019, 08:12am
Can we have 2 remote high-frequency keys in use (synchronized) simultaneously?  Hi,I hope someone can help me clarifying if this is a technical limitation or if am I doing somethin[more ...] By silmarx  On Tue May 21 2019, 09:36am
4 598 silmarx
Sun May 26 2019, 01:25am
ECU  I have a 58 plate C4 VTR+ 1.6 petrol and I was wondering if anyone had heard of the ECU shutting dow[more ...] By Jim117  On Sun May 12 2019, 02:49pm
3 627 Doo
Wed May 22 2019, 04:23pm
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
5 1044 Doo
Tue May 21 2019, 02:57pm
Whistling / Squealing Noise With Engine Speed  Hi AllNewbie Citroen owner in need of some advice / comments that have regarding an issue that has o[more ...] By bigshorty  On Thu May 16 2019, 03:10am
2 572 bigshorty
Thu May 16 2019, 10:17am
Warning beeper  HiCan anybody advise me has to where the warning beep comes from on a 2005 C4 hatch, mine seems to b[more ...] By scurt2  On Mon May 06 2019, 08:51am
2 583 scurt2
Mon May 06 2019, 01:48pm
C4 HDi 2006 Hatch Rear Wheel Bearings/Rotor  Hi guys hope you’re all well, haven’t had the need to be around much, which is a good thing I need [more ...] By Mathy  On Sun Apr 28 2019, 08:07pm
6 719 BigJohnD
Thu May 02 2019, 04:18pm
Rear axle bushes needed?  Both my rear wheels are leaning inbord, it's my first C4 hatchback but I know Saxo's like the back o[more ...] By Slevan7  On Sat Apr 27 2019, 05:13pm
None 574 -
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 591 -
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
1 690 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 655 -
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 636 -
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 674 -
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
2 757 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
2 779 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
3 855 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 804 -
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
2 860 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 7333 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
1 896 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
2 876 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 24130 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
1 926 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 1027 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 2174 Rizwan
Thu Jan 03 2019, 01:49am
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 935 -
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 959 -
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 919 -
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
1 959 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 1089 -
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 1062 -
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 2350 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 1371 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 1034 -
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 1334 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 1145 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 1084 -
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 4296 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 1130 -
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 1227 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 1434 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 1262 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 1509 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 5739 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 1303 -
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 1592 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 1384 Armaghgeddon88
Mon Jul 16 2018, 08:50am
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