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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

20344

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

20352

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

22114

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

25631

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

22084

The Lyonator
Mon Dec 08 2008, 03:27pm

Forum Threads

C4 VTS electric windows not working when car is not running Hi,I have a problem with the windows not opening up and down when i have the ignition on. I have to [more ...] By SimonSterjov On Sun Jan 19 2025, 02:51am

neilp
Tue Jan 21 2025, 04:21pm

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

10633

zcream
Mon Dec 23 2024, 08:29am

C4 20111.6 e_HDI electronic gearbox problem Suddenly displayed various warning lights ABS, EPS, Parking brake.Also displays warning message "Gea[more ...] By Planty2012 On Mon May 27 2024, 02:11am

1167

gango67
Thu Oct 31 2024, 02:10pm

Another blower not working post! Hi everyone. I'm not a C4 owner, but have a friend who is, and he has asked me to try and find out w[more ...] By mattc4 On Sat Oct 28 2023, 11:37am

2910

vexorg
Mon Oct 21 2024, 07:42am

Vacuum valve turbo compressor Hi all!Today the turbo stopped working of my Citroen C4 coupe 1.6HDi (2005).It seems the vacuum valv[more ...] By eldee99 On Mon Apr 16 2012, 03:18am

13368

zcream
Thu Sep 19 2024, 06:26am

2023 C4 not playing USB Memory Card Hi,Thanks for having me. I couldn't find the post i was looking for that related to my question, so [more ...] By Al2222 On Fri Jun 30 2023, 09:19am

5408

P.P.Power
Tue Sep 10 2024, 09:16am

Remote Locking Not Working After Key Fob Battery Change I have just replaced the battery in my key fob (C4 Grand Picasso) as the old one was getting very 'h[more ...] By Pieboy32 On Sat Aug 27 2011, 09:05am

44091

Nickbrown123
Fri Aug 02 2024, 09:45pm

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

23562

Nickbrown123
Fri Aug 02 2024, 09:43pm

Timing Belt MK2 C4 Hello,I downloaded the C4 timing belt tutorial from this site, but it must be for the earlier C4 bec[more ...] By madjack On Mon May 27 2024, 11:06am

1064

vexorg
Wed May 29 2024, 03:19am

C4 Sense - HUD Question Hi, thanks for the add to this forum and hoping someone can help! I've recently bought a 2021 Citroe[more ...] By SamG On Fri Apr 26 2024, 05:00pm

None

1151

Citroen C4 2009 Petrol 1.6, help with upstream and downstream Oxygen sensor readings. Hi, I have a Citroen C4 2009 1.6 petrol, when I use Diagbox to monitor the oxygen sensors, the downs[more ...] By AndyR On Wed Feb 21 2024, 04:13pm

None

1629

brake pedal drops to floor Hi Allbeen a fan for while, so much info on the site, but im struggling with an issue and Im hoping [more ...] By KevinSteyn On Sat Oct 21 2023, 02:48am

2573

KevinSteyn
Sun Oct 22 2023, 06:01am

Mig Welding Advice on C4 Hi My 2008 C4 Picasso HDI 1.6 Has started to show blistering on external lower sills. I used to weld[more ...] By tvman On Fri Oct 13 2023, 11:13am

None

2383

Automation Gearbox Problem Hello, I’m having a problem with AL4 trans of my 2006 C4. After I start my car and drive, the gear i[more ...] By yvzkdr On Sat Oct 07 2023, 02:18pm

None

2405

Intermittent underboost Hi guys,My coupe 1.6 hdi 110 has an intermittent underboost. Whenever it happens I've learned that i[more ...] By Geoagros On Fri Sep 15 2023, 11:14pm

None

2579

Electric problem I have a 2010 C4 with an electric issue. The fuse for the cooling fan (control) burns out after abou[more ...] By shauntbh1 On Tue Sep 12 2023, 06:25pm

None

2663

2016 C4P 1.6 Blue HDi Ad Blue Fault code P2047 Hi, can anyone help ?Have replaced the Ad Blue Injector (twice) and had faults Cleared. But after a [more ...] By Leccietech On Mon Sep 11 2023, 04:22pm

None

2664

C4 2006 daytime lights Hello everyone,I’m planning to retrofit a daytime led inside the original headlight but I need help [more ...] By yvzkdr On Wed Sep 06 2023, 02:43am

None

2665

C4 vents Hello, guys,I have a Citroen C4 1.6 HDi 84kw from 2012.I was in an authorized service center a week [more ...] By Onopko On Wed Aug 16 2023, 11:41am

2943

Farmerguy
Thu Aug 17 2023, 04:24pm

1.6 Hdi 110hp Cam Chain Replacement Hello i have a 2004 1.6Hdi 110hp with just about 98,000 miles and it makes a loud rattle noise when[more ...] By Dave 110hdi On Wed Jul 19 2023, 03:36am

3144

BigJohnD
Tue Aug 01 2023, 05:55am

C4 Picasso 1.6 HDi Semi Auto 2009 - Engine Bay Hidden Maxi Fuses HiI had a C4 Picasso 1.6 HDi Semi Auto for a couple of years now and have been putting up with a bat[more ...] By popenator On Tue Jan 17 2023, 10:37am

None

4198

2016 C4 TPMS Warning Light Reset? Had the TMPS warning light flash up yesterday to say the LHF tyre had low pressure.........it wasn't[more ...] By DonXabi On Wed Nov 30 2022, 06:07am

5068

DeuxChevaux
Thu Dec 01 2022, 10:41am

Timing belt 2.0l petrol vtr+ 2005 Hiya do I need to get the water pump sorted the same time as the timing belt or is it separate on t[more ...] By MarkTee On Tue Nov 15 2022, 01:26pm

4816

MarkTee
Wed Nov 16 2022, 12:08pm

Instrument Panel keeps switching between KM and Miles Hi folks,I have recently replaced the RD45 radio with one of the Chinese 9" Android head units. It c[more ...] By scotcruz On Mon Nov 14 2022, 02:42pm

None

4667

Lights, Windscreen Wipers and Heating Start Up After Locking Doors Hello, Thanks for reading my post.My 2010 Citroen C4 has a weird problem, help!!When the car is turn[more ...] By RichE76 On Mon Nov 07 2022, 02:38pm

4817

Ap0qalypto
Tue Nov 08 2022, 01:03am

Engine cranks but doesn't start Hello guys, I have a problem with my c4 2.0vts. It has been 2 years now that I wasn't using it. So a[more ...] By C4AKIAS On Sun Oct 30 2022, 06:54am

None

4736

C4 2.0 petrol (138hp) upgrades So i was thinking about getting some performance upgrades for my petrol 2.0 C4 (EW10J4).It seems har[more ...] By wsx On Sat Dec 19 2020, 01:36pm

12262

MarkTee
Thu Aug 25 2022, 02:24pm

Mk1 2.0l petrol engine upgrade Hiya has anyone on here tried to up the horse power on the mk1 vtr+ 2.0 litre petrol engine, cheers [more ...] By MarkTee On Thu Aug 25 2022, 02:06pm

None

5464

Heavy smoke coming from oil cap - 1.6 THP. Is this a PCV issue? I have some heavy smoke coming from C4GP 1.6 THP. I also noticed the air house going into turbo was [more ...] By EyeAmNo1 On Wed Aug 10 2022, 05:58am

None

5904

Global closure of windows HiI have a 2014 Mk2 C4 Picasso,The global lock works OK, so when I press and hold the lock button on[more ...] By las16 On Sun Jul 31 2022, 07:53am

6207

routemaster1
Mon Aug 01 2022, 06:13am

Name of front brace bar Hi allHoping someone can help me find the name of a part.Trying to diagnose a knocking noice on the [more ...] By Coll659 On Sat Jun 18 2022, 05:15am

6880

routemaster1
Sat Jun 18 2022, 12:30pm

clutch master cylinder replacement can any one give me information on how to change/access the clutch master cylinder on my c4 2011 die[more ...] By steve1958 On Sat Nov 27 2021, 05:45am

9590

Wullcaldwell
Sun Jun 05 2022, 11:16am

Technical Teaser regarding regeneration. Firstly replaced within the last month.1. New Turbo and Associated Oil Pipes, All filters and Fresh [more ...] By Crouchy On Fri Mar 28 2014, 01:46pm

12349

Farmerguy
Mon May 09 2022, 02:26pm

2021 C4 SS 130. software download problems Hey all. Im trying to download ANOTHER update for my Touchscreen, its the 2nd time ive done this in [more ...] By TCSpacemanUK On Tue May 03 2022, 06:12pm

None

7191

Sticky rear calipers Hi, I've got a 2005 hdi. It's just failed on (amongst other things) the nearside Rear brake binding.[more ...] By ALEXPAR On Sat Apr 30 2022, 01:26pm

7827

vexorg
Sun May 01 2022, 05:39am

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

14804

Farmerguy
Fri Apr 29 2022, 11:52pm

Leaking 1.6 Hdi injector studs solutions Hi, My 100,000 miles -05 C4 is leaking engine oil at the injector studs/bolts (not from the injector[more ...] By Lecat On Sat Apr 02 2022, 10:59am

None

7835

C4 1.6 VTR timing Hi to all Timing belt snapped on daughter's C4Got new belt, pump etc. but if belt snapped how do I p[more ...] By kirkbykidda On Sun Mar 13 2022, 06:53am

8291

vexorg
Mon Mar 14 2022, 05:10am

Installed new stereo, car won't start (amongst other things) Hello there, first post here and it's a strange problem and no doubt. I've searched the fora of cour[more ...] By Sq1rL On Wed Mar 02 2022, 09:50am

8387

Sq1rL
Thu Mar 03 2022, 04:23am

2011 C4 Picasso - coolant bleed screws Hi everyone, I've got a 2011 C4 Picasso 1.6 petrol and I would like to ask if anyone might know wher[more ...] By stevied On Thu Feb 17 2022, 08:22am

None

8195

Driver/front passenger seat removal - C4 Spacetourer Hi guys, can anyone advise me on how to remove the front seats - both driver and passenger? I bought[more ...] By noodle1138 On Sun Feb 13 2022, 04:09am

None

8627

Citroen C4 ESP error and engine stopping 2006 model 1.6HDi Citroen C4 gives an ESP warning while driving on the road and stops and does not w[more ...] By maydemir77 On Thu Feb 10 2022, 12:16pm

10053

maydemir77
Fri Feb 11 2022, 08:13am

C4 Loeb fault code HelloCan anyone tell me what to look for with this fault code please;«State: IntermittentRear RH Exh[more ...] By sx-pack On Wed Feb 02 2022, 06:56pm

8734

BigJohnD
Fri Feb 04 2022, 10:26am

2010 Citroen c4 auto 1.6 Vti Hello just bought this car but have discovered that there is a slight shake between 1st and 2nd gear[more ...] By Lukejoso On Wed Jan 26 2022, 11:26pm

None

8519

C4 grand picasso 2014 1.6thp ep6cdt BSM under bonnet fuse box Hi All,I was wondering if anyone could confirm the bsm that goes into 2014 c4 grand picasso I believ[more ...] By Eagersap8 On Sat Jan 15 2022, 11:09am

8924

Ap0qalypto
Sat Jan 15 2022, 11:32am

C4 Hatch 2L 2005 - Help with wiring of Thermostat Heater Wiring Plug Hi all, I have been scratching my head with this issue for a while but now nearing the mark. Backgro[more ...] By Spada On Wed Jan 05 2022, 04:57am

None

8744

C4 I gen front pillow removal Dear allI left car with windows down and a cat jumped in to urinate on the passenger seat.I need hel[more ...] By Mmd78 On Sun Dec 05 2021, 04:29am

9382

Mmd78
Wed Dec 15 2021, 04:04am

C4 diesel injector selection hi all, i am looking for a new fuel injector as my mechanic test one as faulty. however searching bo[more ...] By Dan_68c On Mon Sep 03 2012, 05:59am
Goto page: [ 1 2 ]

34560

GazSto
Tue Nov 16 2021, 03:28pm

Citroen C4 – STOP, service, unstoppable wipers and other electrical problems. Hi.My Citroen C4 1.6 HDI 2007 aut. recently started having a total electrical meltdown. Mechanically[more ...] By Samks On Wed Nov 10 2021, 08:48am

10337

Samks
Tue Nov 16 2021, 02:53pm

C4 2010 VTR+ Automatic Drive mode issue Hi, I have just bought the car from a private seller,C4 2010 1.6 vtr+ hdi Diesel Turbo. the car seem[more ...] By aalluu On Sun Oct 17 2021, 01:45am

10010

routemaster1
Sun Oct 17 2021, 01:21pm

C4 B7 2013 Clutch Bite Point My cars clutch seems to only do anything at the very last 2 inch or so of pedal travel.Had Peugeots [more ...] By dcgpx On Sat Oct 02 2021, 12:51pm

None

9874

Overfilled tank - won't start I foolishly topped up my already nearly full tank with a can of petrol. I have to drive 200 miles (y[more ...] By toomuchpetrol On Sun Sep 26 2021, 05:26am

10254

vexorg
Sun Sep 26 2021, 05:39am

Does my car have a dual mass flywheel? Hi, hope someone can help. I have a 2012 C4 1.6 hdi with the 9HP engine code. Can anyone tell me if [more ...] By osmo42 On Tue Sep 07 2021, 06:43am

10484

tomandjo2
Tue Sep 07 2021, 03:47pm

Egs pump/actuator *removed and posted in correct forum By Paulm40 On Mon Aug 30 2021, 02:18am

None

10473

Technical service bulletin VF7SB5FS0DW585199 - Can anyone access it? Sorry this is not about a C4 but is about my wifes DS3 Cabrio. Citreon have posted a TSB about how t[more ...] By DeuxChevaux On Sun Aug 15 2021, 08:30am

10938

DeuxChevaux
Tue Aug 17 2021, 04:57pm

06 Citroen C4 Oil in Spark Plugs Hi All, Has anyone ever encountered where oil leaks into the spark plugs?As in ALOT of oil, the firs[more ...] By Kanaalaap On Wed Aug 04 2021, 03:50am

11619

Kanaalaap
Thu Aug 05 2021, 06:02am

C4 2009 1.6hdi wheel bearing issue or not Hi allI currently have this problem that i just can't pinpointOn bends at speeds turning left I get [more ...] By ddebling On Wed Aug 04 2021, 04:25am

10862

tomandjo2
Wed Aug 04 2021, 06:48am

DPF related fault codes and searching for correct part Hi,The engine management light has recently come on on my C4 (2005 2.0 HDI hatchback, currently at 1[more ...] By Rob_E On Tue Aug 03 2021, 04:39am

None

10665

C4 1.6 SX 7k rpm before changing to second gear Hello, new here but looking for advice, just purchased a used C4 1.6 SX and it's taking getting to 30mph and 7k rpm before the auto changes to second gear. the garage has told me it's OK and normal for the car. I'm dubious about that. but it is my first car and only car I've driven since lessons. thank you for any advice given. By marc85y On Fri Jul 23 2021, 03:46pm

11302

marc85y
Sat Jul 24 2021, 08:23am

Lower ball joint I think my lower ball joint has gone. There is fluid around the rubber and there is a knocking sound[more ...] By zx9fella On Fri Feb 19 2010, 07:42am

15032

vexorg
Fri Jul 23 2021, 03:17am

2008 C4 Rear brake rotor and bearing Firstly, thank you for the wonderful resources on this forum. I have a 2008 C4 Hatch which I am look[more ...] By DaytonaV On Wed Jul 21 2021, 04:25pm

None

10477

Battery life and recommended replacements Good afternoonMy Citroen Grand C4 Picasso (1.6 petrol automatic) is coming up on 4 years old. This i[more ...] By DanM On Thu Jul 01 2021, 10:20am

12212

DeuxChevaux
Fri Jul 02 2021, 02:41am

Need help with alarm gone mad Regarding a Citroen C4 Coupe.So recently when the cold came by, the alarm went crazy. Basically when[more ...] By natiolo On Thu Dec 10 2020, 05:01pm

12291

bobbyla
Tue Jun 29 2021, 08:18am

2005 Coupé 136hp Clutch change Afternoon, my clutch has been juddering for a while and now it's started pulsing through the pedal. [more ...] By moizeau On Wed Jun 23 2021, 06:40am

None

10713

Single to double AC zone upgrade? Hello!I have 2007 Citroen C4.Could not find any info on that. The question if it is possible to some[more ...] By Okosai On Thu Jun 17 2021, 07:44am

11104

Lasiakutevs
Wed Jun 23 2021, 03:31am

SAT NAV Just received my SAT NAV SD card with updated maps. the last one was still the original one that cam[more ...] By Datadogie On Mon Jun 14 2021, 01:45pm

None

10876

Fuel Gauge Accuracy I went for it this week, to see how accurate the fuel gauge is.I can confirm that when the range is [more ...] By BigJohnD On Thu Nov 01 2007, 04:04pm
Goto page: [ 1 2 3 4 ]

69672

vexorg
Wed Jun 09 2021, 03:40am

1.6 HDi aux drive belt removal.. Hi people, I'm just wondering if there's a how to on removing and refitting the aux drive belt on a 07 1.6HDi 90hp with climate and non DPF, I've checked out the download on it but my model does not seem to have a dynamic tensioner fitted like what is shown.. I'm confused , does my model have the elastic type belt ? I'm a pretty competent home mech so I'm hoping this will be a nice little Saturday job for me.. Any help greatly appreciated... PS proud to be a premier member of an excellent forum By Gjsteed On Sun Apr 22 2012, 06:28pm
Goto page: [ 1 2 ]

50174

vexorg
Fri May 14 2021, 04:04am

Oil temperature sensor on the RFK EW10J4S motor Hi,On the Peugeot 206 GTI they have an oil temperature sensor. Does anyone know where this sensor is[more ...] By NTwoO On Sun Mar 14 2021, 06:02am

None

11356

C4 VTS 180 aftermarket exhaust by Walker Hi all,I just bought my first C4 VTS 180 and hoped it was only the stainless steel backbox making a [more ...] By Cheeros On Mon Jul 06 2020, 06:45am

12596

NTwoO
Sun Mar 14 2021, 05:53am

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