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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

7903

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

8185

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

9625

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

12173

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

9515

The Lyonator
Mon Dec 08 2008, 03:27pm

Forum Threads

Brake caliper bolt meassurements HI. does anyone know the meassurements of C4's MK1 rear brake caliper mount bolts(Torx50)(that doesn[more ...] By trucker8oy On Fri Oct 30 2020, 12:09pm

trucker8oy
Fri Oct 30 2020, 03:43pm

DPF warning light and service bleep Citreon C4 2011 (Mk2) I am at a lost the DPF warning light and orange service light came on this mor[more ...] By devondoc On Thu Oct 22 2020, 11:35am

None

C4 2007 Piloted Gearbox Issue Evenin all, long time no see....Edit: 2007 C4 1.6hdi SXI have an issue, well, wife does, ergo it's m[more ...] By Doo On Mon Oct 05 2020, 10:56am

None

134

C4 Air con problem. C4 2007 2litre Hdi 6sp. Auto. Took vehicle for air con recharge to a local garage. Its not worked fo[more ...] By Spireman On Fri Aug 21 2020, 12:58pm

441

Spireman
Mon Sep 14 2020, 10:29am

AL4 electrovalves replacement C4 I 2006 1.6 i 16v 110 For the last few months, I have a problem with AL4 gearbox when accelerating there is a loud thud, s[more ...] By majndfak On Wed Feb 05 2020, 04:38pm

1035

stjan10
Mon Sep 14 2020, 03:57am

C4 handbrake problem My 2007 c4 wouldnt release the handbrake so I eventually found the little winder and did it manually[more ...] By paddyo1 On Tue Sep 08 2020, 03:13am

None

245

C4 2005 1.6 petrol doesn't start Hi,my car arrived home normally and it didn't start next day. It turns the engine for while and stop[more ...] By gsa1300 On Sat Sep 05 2020, 12:43pm

258

rusky
Sat Sep 05 2020, 03:54pm

C4 2.0 VTR 5th gear swap So I was planning to swap my 5th gear on my C4 5 speed manual to longer one.If i did my research cor[more ...] By wsx On Sat Aug 22 2020, 04:48pm

342

wsx
Sun Aug 23 2020, 11:50am

Gear shifting and multiple error codes Hello everybody,This is my first post, not sure if it's for this section. I'm a new owner of C4 Pica[more ...] By zmax On Wed Jun 24 2020, 06:06am

620

Ap0qalypto
Mon Aug 17 2020, 09:05am

C4 Picasso ( EVAP ) filling with diesel issue tried looking on site to no avail 2010 C4 picasso exclusive 1.6HDiwhen filling with diesel it keeps [more ...] By markpickett On Mon Aug 10 2020, 10:42am

None

341

Fuel additive Hi, my car is a 2009 Citroen C4 Grand Picasso 1.6hdi, can anyone tell me if it uses Eolys or Adblue [more ...] By Brendanmusicman On Fri Aug 07 2020, 01:16pm

416

BigJohnD
Sat Aug 08 2020, 04:24am

EGR Valve Blanking Plate -Experience & Questions 2007 C4 2.0 HDi 136hp I have a 2007 C4 2.0 HDi (no DPF). The car was requiring an awful lot of revs to get off the line[more ...] By jaizan On Sun Aug 02 2020, 03:18pm

None

364

2008 C4 (Petrol) Fuse Box Died Hello folks,My car's engine fusebox died naturally. The weird point is that, the spare parts are not[more ...] By burakkirazli On Mon Jul 20 2020, 04:42am

None

411

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

513

Cheeros
Thu Jul 09 2020, 04:35pm

2006 C4 VTR power steering issue Hi, I’m after a little advice regarding power steering problem on my wife’s car. The car is a 2006 C[more ...] By Andrew1979 On Sun Jun 21 2020, 01:43pm

631

Karamelo
Sat Jun 27 2020, 12:11am

injector seal question Hi peepsEasy enough Q: is replacing injector seals on a 2007 C4 1.6 HDi a DIY job or it best left to[more ...] By Awil92 On Mon Jun 08 2020, 06:33am

627

rusky
Mon Jun 08 2020, 03:29pm

2005 C4 key replacement Hi all.My father in law damaged key for his 2005 C4. Key fell on the hard floor and was unable to st[more ...] By tomaskriv On Sun May 31 2020, 04:43am

706

tomaskriv
Tue Jun 02 2020, 02:10pm

turbo seals need replacing? hi allI've noticed recently that the hose that goes from the turbo to the intercooler was caked in o[more ...] By Awil92 On Sat May 23 2020, 07:40am

661

vexorg
Sat May 23 2020, 02:46pm

Injector seal(s) hi alli have reason to suspect that an injector seal has failed on my 2007 C4 1.6 hdi (92hp)my quest[more ...] By Awil92 On Fri May 22 2020, 11:38am

667

rusky
Fri May 22 2020, 02:06pm

Gearbox oil change Hi Guys,I just wanted some advice on gearbox oils for the 1.6Hdi 110Bhp which just had a remap. Ill [more ...] By danny_l On Tue Feb 16 2010, 07:26pm
Goto page: [ 1 2 ]

51087

vexorg
Thu May 21 2020, 06:16am

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

8617

theTune71
Sat May 09 2020, 06:52am

C4 semi auto gearbox Hi, unfortunately had what looks to be a crown and pinion failure resulting in a smashed gearbox cas[more ...] By Duncan2777 On Fri May 08 2020, 03:56pm

None

653

Where to find fuse box #2 Hello C4 owners, i drive a 2008 C4 5 doors Exclusive model. I have a Question about the fuse boxes.[more ...] By theTune71 On Wed May 06 2020, 09:10am

727

theTune71
Thu May 07 2020, 04:06am

C4 2006 1.4 fault code P0170 shuddering loss of power C4 2006 1.4 fault code P0170 shuddering loss of power My car has a loss of power and showing fault c[more ...] By c4trouble On Mon Apr 09 2012, 01:47pm

9393

igorb
Tue May 05 2020, 06:53am

ABS CYCLING Hi everyone, I own a C4 MkI 1.6HDi VTR+. Does anyone know when cycling the ABS pump if pump starts u[more ...] By moneypit On Sat May 02 2020, 07:39am

719

Markta
Sun May 03 2020, 03:56am

2007 Citroen C4 Lexia issue Hi.Hope you’re all keeping safe.I have Lexia 3 and purchased it two years ago.Last used it two years[more ...] By Markta On Sun Apr 12 2020, 05:01am

850

Markta
Fri May 01 2020, 06:26pm

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

1415

jaizan
Fri May 01 2020, 04:57am

Coolant temperature sensor location HI, I have a 2014 C4GP 2.0 HDi 150 BLUE.I am having an issue with the temperature sensor and have pu[more ...] By chrrog-grand-picasso On Tue Apr 21 2020, 05:08am

None

720

Automatic headlamp adjustment faulty one lamp Hello everyone, sorry for my bad English, but I think you understand me.I bought 2006 Citroen C4 VTS[more ...] By edzwux_vts On Mon Apr 13 2020, 04:15am

None

770

Dashboard language HiWe have just had a local guy replace the cam belt and head gasket. As the battery had to be discon[more ...] By Peterwrax On Sat Mar 31 2012, 05:51am

9204

neilp
Thu Apr 02 2020, 10:15am

2008 C4 5 Door Central Locking issue Hello.I've got a C4 that when you lock it with the key remote buttons it locks but sometimes when yo[more ...] By Alvin On Mon Feb 17 2020, 06:15pm

965

neilp
Tue Feb 18 2020, 01:14am

Dual Mass Flywheel? Hi, I’m new to the site and considering buying a C4 hatchbackI’d buy a 2010-2013 model with a 1.6 HD[more ...] By Dakota1886 On Sat Feb 15 2020, 01:59pm

958

rusky
Sat Feb 15 2020, 03:45pm

FOB middle button reprogram Hi,Is there a way to reprogram the middle button on my key FOB.I have lights operation and would lik[more ...] By Stankoman On Wed Jul 31 2013, 02:26am

2534

BigJohnD
Fri Jan 17 2020, 02:23pm

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

1357

Jack_Herer
Tue Dec 17 2019, 08:38am

2008 C4 VTS steering rack turns lock to lock I'm trying to replace the steering rack on my 2008 C4 VTS petrol.After looking on servicebox it need[more ...] By Jack_Herer On Tue Dec 17 2019, 08:22am

1091

Jack_Herer
Tue Dec 17 2019, 08:37am

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

1190

Jack_Herer
Tue Dec 17 2019, 08:29am

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

1165

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

1340

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

1203

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

1221

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

1338

motahoun
Fri Oct 25 2019, 03:40am

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

19819

Alps
Wed Oct 23 2019, 04:42pm

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

3811

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

3575

Redfive05
Sat Oct 19 2019, 05:09pm

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 ]

11589

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

5999

frydendahl
Fri Sep 20 2019, 05:33am

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 ]

51576

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

1638

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

1335

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

1398

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

1531

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

1498

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

1611

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

1607

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

1565

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

1613

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

1575

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

1688

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

1718

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

2193

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

1676

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

1650

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

1881

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

1627

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

1620

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

1765

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

1735

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

1697

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

1702

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

1834

CaptainSlow
Tue Mar 05 2019, 01:00pm

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