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[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

6220

kipper
Thu Mar 22 2012, 07:47am

[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

6573

PentlandC4
Tue Jan 03 2012, 03:02pm

[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

7911

Dave_Retired.
Thu Feb 03 2011, 01:49am

[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

10214

routemaster1
Sat Feb 20 2010, 11:31am

[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

7810

The Lyonator
Mon Dec 08 2008, 03:27pm

Forum Threads

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

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

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

118

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

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

156

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

175

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

525

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

134

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

164

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

251

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

157

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

179

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

234

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

215

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

212

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

261

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

310

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

315

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

416

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

382

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

431

BigJohnD
Sat Jan 26 2019, 05:53am

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

6700

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

449

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

454

Rizwan
Fri Jan 11 2019, 07:26pm

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 ]

21902

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

477

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

572

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

1726

Rizwan
Thu Jan 03 2019, 01:49am

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 ]

38287

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

498

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

529

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

503

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

525

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

671

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

652

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

1489

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

824

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

618

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

736

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

668

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

632

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

3720

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

693

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

761

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

977

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

811

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

1059

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

5124

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

845

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

1092

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

906

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

887

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

1020

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

1075

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

1617

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

1250

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

1763

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

1087

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

1193

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

1336

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

1382

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

1226

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

1151

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

1244

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

1343

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

1193

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

1766

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

1791

Arwing
Tue Jan 09 2018, 11:03am

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 ]

15366

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

1677

FrankBullitt
Thu Jan 04 2018, 06:12am

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