or Login >>         
C4 - DS4 Owners :: Forums :: Coupe and Hatch Pre 2011 cars :: Technical Questions

Technical Questions

Home   Forum Rules    Forum Help   Conversion Tools

Please Login with username OR Register to enjoy additional Member Benefits
New Posts New posts No New Posts No new posts Sticky Thread Sticky Announcement Thread Announcement
New Posts on Popular Thread New posts [popular] No New Posts on Popular Thread No new posts [popular] Closed Sticky Thread Sticky/Closed Closed Thread Closed thread
You cannot start new threads - You cannot post replies - You cannot edit your posts
  Thread Replies Views Latest Post
 Important Threads
Sticky Thread
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 8727 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 8917 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 10400 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 13064 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 10304 The Lyonator
Mon Dec 08 2008, 03:27pm
 Forum Threads
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 248 -
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
2 1250 NTwoO
Sun Mar 14 2021, 05:53am
Gearbox jerky  Hi, I’m a newbee and have worrying problem with our car. I’ve got a 64 reg C4 Picasso and I’m experi[more ...] By Speedmaster  On Sat Mar 06 2021, 07:30am
None 277 -
C4 1.6HDi VTR+ 5 dr hatch - front coil spring completely broken  Hi all, has any one had a front suspension coil spring completely break in two over night?Got in my [more ...] By Phil H  On Tue Aug 28 2012, 04:23am
9 6945 Mkaminski100
Tue Feb 16 2021, 04:57am
C4 turns over but won't run properly, petrol clog?  My C4 won't start The car turns over fine and when using starter spray fires up, runs and sounds [more ...] By HamRag  On Mon Feb 08 2021, 02:36pm
2 390 HamRag
Mon Feb 08 2021, 03:26pm
06 Citroen C4 Starting Issues / Constant Self Resetting  Hi there everyone, I am coming to you guys in need of some desperate assistance.I have a 06 C4 1.6 P[more ...] By Kanaalaap  On Sun Jan 10 2021, 01:02am
1 499 rusky
Sun Jan 10 2021, 07:18am
C4 1.6 16v (2008) petrol cold start issue  Hi all,new to the forum and also to Citroen cars so hoping to find some support on my cold start iss[more ...] By Tamariini  On Mon Jan 04 2021, 05:20am
None 471 -
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
2 640 wsx
Sun Dec 20 2020, 06:33am
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
3 675 natiolo
Sun Dec 13 2020, 04:37pm
No New Posts on Popular Thread
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
10 23839 romano
Tue Dec 01 2020, 08:30am
2016 C4 Grand Picasso worst ABS problem ever  Hi Guys,hopefully somebody can help me. On Saturday a friend of mine asked me to work on a car he ha[more ...] By mattyb2020  On Tue Nov 17 2020, 12:17pm
2 795 Noworries2004
Thu Nov 26 2020, 02:22am
1.6HDi injector sleeves  I have just taken a injector out of my Picasso 1.6HDi. Now need help as sleeve has come out with the[more ...] By lionel399  On Sat Nov 07 2020, 09:33am
None 707 -
i have a turbo over boost problem  i have a overboost problem. it seems to me that the wast gate is working fine when you take the vacu[more ...] By lionel399  On Tue Nov 03 2020, 01:13am
3 820 lionel399
Thu Nov 05 2020, 12:15pm
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
2 795 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 771 -
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 811 -
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 1286 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 1896 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 929 -
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
1 985 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 1114 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 1379 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 1005 -
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 1208 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 1037 -
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 1091 -
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 1385 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 1378 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 1446 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 1365 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 1397 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 56779 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 9787 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 1312 -
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 1446 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 10447 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 1422 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 1567 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 2205 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 1384 -
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 1440 -
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 10119 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 1632 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 1635 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 3216 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 2044 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 1752 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 1882 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 1813 -
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 2028 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 1889 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 1883 -
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 2055 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 21635 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 4844 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 4340 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 13925 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 7401 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 56845 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 2413 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 1992 -
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 2070 -
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 2216 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 2206 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 2312 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 2309 -
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 2300 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 2328 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 2294 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 2427 silmarx
Sun May 26 2019, 01:25am
Go to page       >>  

Jump to forum:     Back to top

1 user is browsing this forum at the moment (0 members, 1 guest)
New Posts New posts No New Posts No new posts Sticky Thread Sticky Announcement Thread Announcement
New Posts on Popular Thread New posts [popular] No New Posts on Popular Thread No new posts [popular] Closed Sticky Thread Sticky/Closed Closed Thread Closed thread
You cannot start new threads - You cannot post replies - You cannot edit your posts