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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 7903 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 Dave_Retired.  On Wed Oct 26 2011, 03:54am
1 8185 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 9625 Dave_Retired.
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 12173 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 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
2 33 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 69 -
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
9 441 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
1 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
1 258 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
5 342 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
3 620 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
5 416 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
1 513 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
5 631 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
2 627 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
4 706 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
1 661 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
1 667 rusky
Fri May 22 2020, 02:06pm
No New Posts on Popular Thread
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 ]
21 51087 vexorg
Thu May 21 2020, 06:16am
No New Posts on Popular Thread
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
14 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
2 727 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
7 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
1 719 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
3 850 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
9 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
7 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
1 965 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
1 958 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
3 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
3 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
1 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
1 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
1 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
1 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
2 1338 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 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
4 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
4 3575 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 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
2 5999 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 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
3 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
1 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
1 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
2 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
1 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
1 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
1 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
4 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
3 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
5 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
2 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
2 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
6 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
1 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
2 1834 CaptainSlow
Tue Mar 05 2019, 01:00pm
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