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Maintenance and Repair Tips and Procedures.

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General Repair Costs Guide
  PentlandC4 wrote ...I've been wondering whether a thread devoted to repair costs might be useful- i.[more ...] By Web Admin Only  On Thu Feb 09 2012, 01:14am
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41 12366 riven1962
Fri Oct 13 2017, 11:20am
Announcement Thread
[Announcement]
Chinese 'Clone' Lexia Doesnt Work for You - an Alternative
  Posted over at C6owners, but related to the C4 range.gmerry wrote ...Hi all, for some Lexia is a poo[more ...] By Web Admin Only  On Thu Dec 04 2014, 07:21am
None 2575 -
Announcement Thread
[Announcement]
Citroën Fixed Price Repair Offers (Revised)
  We are all aware of the fixed price offer on Brake pads and discs, timing belts etc. but there is a [more ...] By Web Admin Only  On Thu Mar 08 2012, 08:49am
8 7091 wilcovh
Thu Jul 17 2014, 05:17pm
Announcement Thread
[Announcement]
DPF Removal and EGR Valve Blanking
  There has been lots of posts on the merits or otherwise of removing the DPF and/or Blanking the EGR [more ...] By Web Admin Only  On Sat Jun 14 2014, 11:51am
None 2830 -
Announcement Thread
[Announcement]
Tyre Size - the differences they make
  Added a Tyre Size Differential Calculator back on site: - Click Here - so you can play around with[more ...] By Web Admin Only  On Mon Mar 31 2014, 07:20am
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Announcement Thread
[Announcement]
Citroen Peugeot recommend oils and the alternatives
  Whilst PSA recommend Total Oil, there are others available from, Shell, BP Castrol, Esso, Mobil, Yac[more ...] By Web Admin Only  On Wed Mar 26 2014, 02:32pm
None 4680 -
Announcement Thread
[Announcement]
Customer Recall Website
  Citroën are pleased to announce the launch of a brand new and free service for customers, which[more ...] By Phil  On Thu May 10 2012, 04:31am
1 4728 Web Admin Only
Thu May 10 2012, 05:18am
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[Sticky]
Oil advice and recommendations from oilman
  C4owners has invited us to start an "oil recommendations" thread here... so if you would like any oi[more ...] By oilman  On Wed May 12 2010, 09:26am
5 4984 TriumphGuy
Mon Sep 04 2017, 07:00am
Sticky Thread
[Sticky]
DPF (EOLYS) Fluid Pouch Replacement
  Been advised by my on board dash .....Fluid level critical.Out of curiosity I had a look it's a pouc[more ...] By Crouchy  On Fri Mar 14 2014, 03:42pm
8 10036 trev h
Fri Jul 21 2017, 03:40am
Sticky Thread
[Sticky]
C4GP DPF System Failure - Solved.
  I own a 07 plate C4GP with around 120,000 miles on it, and apart from an airbag failure around a yea[more ...] By apollojones  On Sun Aug 02 2015, 04:09am
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16 4335 Johnboi79
Tue Jun 06 2017, 01:15pm
Sticky Thread
[Sticky]
Tutorial: 1.6HDi - How to remove and replace auxiliary drivebelt Peugeot Citroen
  Hello!I am glad to present you another tutorial: How to remove and replace auxiliary drivebelt Peuge[more ...] By adioperator  On Wed Oct 22 2014, 05:33am
3 2569 richardthestag
Mon Apr 17 2017, 10:36am
Sticky Thread
[Sticky]
The old - my passenger side electric window won't move problem - a fix!
  I have a C4 2007 5 door hatch 1.6hdi SX EGS. Recently the passenger window would only wind down from[more ...] By DeuxChevaux  On Wed Mar 05 2014, 09:55am
3 3516 geirars
Sun Nov 20 2016, 02:11pm
Sticky Thread
[Sticky]
Find the correct oil for your Citroën
  This website will tell you the correct oil for your car's engine. - Click Here - Enter either your[more ...] By BigJohnD  On Wed Sep 25 2013, 06:46am
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26 9995 routemaster1
Fri Mar 11 2016, 10:36am
Sticky Thread
[Sticky]
C4 with EGS - Fixed the juddering when taking off
  This weekend was spent calibrating the EGS gearbox. I recently talked to the garage about the judder[more ...] By Lars of Sweden  On Mon Jul 19 2010, 04:10am
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36 29610 crapday
Tue Sep 29 2015, 12:39am
Sticky Thread
[Sticky]
How to prevent injector seal failure and turbo failure on 1.6HDi engines.
  I have been researching this as it seemed to be a common issue and injector seals are not a part tha[more ...] By JohnC4GP  On Wed Feb 05 2014, 07:50am
11 6963 andyste1
Tue Mar 17 2015, 02:57pm
Sticky Thread
[Sticky]
How To start your Car using a booster battery from another car
  Hello,Here we are with another video tutorial: Jump Strarting a car using a booster battery from ano[more ...] By adioperator  On Mon Jan 19 2015, 09:44am
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Sticky Thread
[Sticky]
How To Clean / Maintain Battery, terminals and connector clamps
  Hello,Here we present a totorial about "How To Clean / Maintain Battery, terminals and connector cla[more ...] By adioperator  On Mon Jan 19 2015, 03:46am
None 1882 -
Sticky Thread
[Sticky]
Weekly checks on a Citroen C4
  Hello Citroen C4 Owners,Here I present a project about weekly checks on a car. There are some very s[more ...] By adioperator  On Mon Jan 19 2015, 03:34am
None 2060 -
Sticky Thread
[Sticky]
A new glove box repair procedure.
  Good day FolksI have recently just broken my glove box latch for the second time. This can get expen[more ...] By Zedd  On Wed Aug 07 2013, 05:58am
4 4802 DeuxChevaux
Thu Oct 16 2014, 02:30am
Sticky Thread
[Sticky]
The Reason Why CV Boot Clamp Failure is Common
  I own a 1.6 HDi Loeb but this information will apply to all models sharing the same driveshafts and [more ...] By thetwistedsock  On Thu May 15 2014, 03:58pm
1 2979 Grumpy GrandPa
Sat Jun 07 2014, 08:01am
Closed Sticky Thread
[Sticky]
Turbo Replacement - parts used
  Well just had my 1.6hdi returned today after having new turbo installed at a cost of €1630. List of [more ...] By Philm9394  On Thu Feb 27 2014, 01:10pm
10 11705 Web Admin Only
Wed Mar 12 2014, 04:51am
Sticky Thread
[Sticky]
How to remove and install a clutch
  Right i assume you have the drive shafts out and oil drained1. Take all the bell housing bolts of f[more ...] By C4paulC4  On Sun Dec 08 2013, 06:06am
4 3478 Web Admin Only
Tue Dec 10 2013, 01:14pm
Sticky Thread
[Sticky]
Radio, sat nav, speedo, parking sensor repairs
  I recently had all these faults on my C4 Grand Picasso, Citroen quoted £2000 for the repair, so I ca[more ...] By akascotty  On Fri Mar 01 2013, 01:05pm
None 2989 -
Sticky Thread
[Sticky]
Solid flywheel conversion kits
  hi could anyone point me in the right direction as to where i cant buy a solid flywheel conversion k[more ...] By jonny1979  On Thu Feb 28 2013, 04:55am
3 4767 Commodore
Thu Feb 28 2013, 07:15am
Closed Sticky Thread
[Sticky]
Looking for a 'Sensor' of any kind for your Citroen?
  For a full range of replacement senors from ABS, Air Con Blower through to Lambada Temperature or Th[more ...] By Web Admin Only  On Fri Feb 01 2013, 09:49am
None 2718 -
Sticky Thread
[Sticky]
Tailgate Wiring Loom Repair Teardown, Repair and Rebuild
  I've just put together some notes that may be helpful for anyone with the dreaded tailgate cable fat[more ...] By dilbert  On Fri Jan 11 2013, 04:55am
4 3825 DeuxChevaux
Sat Jan 26 2013, 04:55am
Sticky Thread
[Sticky]
C4 HDi's and Dual Mass Flywheels - when should you replace one?
  OK if you read the FAQ: HERE it explains how the DMF works.Please Note: Petrol C4's of all variants[more ...] By Web Admin Only  On Thu Jan 24 2013, 11:24am
6 5130 Bin-The-L-Plates
Sat Jan 26 2013, 03:30am
Sticky Thread
[Sticky]
Plastic Trim Clips and where to buy them?
  We often get asked 'where can I get **** trim clip' and the answer is usually 'a dealer'However ther[more ...] By Web Admin Only  On Wed May 16 2012, 02:01am
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Sticky Thread
[Sticky]
Repair plastic 100% success
  Hello my friends I have just come across a product that's amazing when it comes to repairing broken [more ...] By niks  On Tue Mar 13 2012, 02:52am
None 3429 -
Sticky Thread
[Sticky]
Faulty Engine ECU - Repair Options
  Hi all. ECU Doctor - Click Here - may be worth considering for repair rather than replacement of[more ...] By gmerry  On Wed Jan 25 2012, 04:24am
1 3933 Web Admin Only
Wed Jan 25 2012, 08:07am
Sticky Thread
[Sticky]
Servicing and Overhaul Parts for Garrett Turbocharger - 1.6HDi
  Hi this might help somebody.The Garrett GT1544V Turbocharger is fitted to the 1.6HDi engines used in[more ...] By gmerry  On Tue Nov 15 2011, 07:05am
4 4678 PPP7
Tue Nov 15 2011, 03:56pm
Sticky Thread
[Sticky]
Parts Diagram showing wheel arch and underbody covers
  Is there a parts list available which shows the inner wheel arch covers and protection covers undern[more ...] By AndyL  On Tue Nov 08 2011, 02:57pm
1 8270 Web Admin Only
Wed Nov 09 2011, 01:19am
Sticky Thread
[Sticky]
Electrical parts for C4
  I was looking for some C-Crosser information and found this, which might be of interest to some memb[more ...] By PentlandC4  On Mon Aug 22 2011, 02:53pm
1 4025 Web Admin Only
Tue Aug 23 2011, 01:20am
 Forum Threads
Boost pressure valve  Has anybody got a guide on how to fit a boost pressure valve on the vts hdi? By Brucey  On Tue Nov 14 2017, 02:29am
None 79 -
Lambda sensor Citroen C4 Grand Picasso 1.8 Petrol 2008  Hi there. I posted a few weeks ago about a de-pollution fault I'm experiencing and I've spent a bit [more ...] By adamgt80  On Wed Sep 20 2017, 10:46am
2 238 rusky
Mon Nov 06 2017, 01:40pm
C4 Blower motor only works on full power. How to fix.  This is just a posting which I hope will be of use to others who have the same fault occur as me.The[more ...] By iang  On Thu Nov 29 2012, 11:01am
3 9106 iang
Fri Nov 03 2017, 04:19am
62 plate C4 Picasso with electronic handbrake and no release button - brake pad renewal  I am about to replace the rear brake pads which I have found a suitable post for but there is still [more ...] By jblogs  On Fri Oct 27 2017, 08:59am
3 156 routemaster1
Sat Oct 28 2017, 03:14pm
Turbo Failure is also due to not winding down!  I've read allot about turbo maintenance service on the DV6C HDi's but, never ever did I read that af[more ...] By stevjull2017  On Sun Oct 15 2017, 08:41pm
4 246 routemaster1
Sat Oct 21 2017, 06:38am
citroen c4 picasso 2007 autogearbox dont show and stuck in 3rd  today this problem show autogearbox doesnt show (A1,A2 etc) now show only M (1,2,3) so when i drive [more ...] By cenii  On Tue Oct 17 2017, 04:40am
2 135 cenii
Tue Oct 17 2017, 03:44pm
Lexia or Delphi near Lymington (Hampshire)  As per title. I am undecided over which setup is best and now my GP has thrown a tantrum it wont let[more ...] By alfymech  On Fri Oct 13 2017, 10:52am
None 131 -
C4 Picasso Airdream - problem with audio head unit  HI Everyone - I have a 2013 C4 Picasso Airdream I have an issue with my audio head unit touch screen[more ...] By TonyV  On Sat Sep 16 2017, 02:19pm
4 214 matjam
Thu Oct 05 2017, 03:55am
Threading new 2007 C4 Picasso wing mirror through door  Hello.I am hoping someone can help me, I had my wing mirror smashed off my 2007 Grand Picasso, I hav[more ...] By Ilovemydpf  On Wed Sep 27 2017, 06:06am
None 172 -
1.6 HDi EGS gearbox  Sorry if this has been posted already but I cannot find a relevent post despite searching everything[more ...] By alfymech  On Sun Sep 24 2017, 03:03pm
None 168 -
Citroen c4 picasso 2007 fuel level too low  I fill my fuel tank but im getting fuel level too low. Why this? By cenii  On Mon Sep 11 2017, 10:48am
3 298 BigJohnD
Mon Sep 18 2017, 07:18am
C4 Picasso Starter Motor testing  Hi Folks, I have a 2007 C4 Picasso 16 HDI, Townsville, Queensland Australia, which has had the sympt[more ...] By bigredvac  On Wed Sep 06 2017, 05:23am
1 226 calderscot
Thu Sep 07 2017, 03:33pm
Engine stops in 80km/h :O  My Citroen C4 Picasso engine stops when I was 80km/h. What can be the problem?  By cenii  On Mon Aug 28 2017, 11:24am
None 209 -
Citroen C4 2010 VTi 120 (EP6)  Hi,The car seems not so powerful as it was about a year ago. I have changed the engine air filter an[more ...] By Blackened  On Fri Aug 25 2017, 09:05am
None 196 -
Citroen C4 Picasso 2007 automatic transmission  When Citroen changes transmission from A1 to A2 I can hear loudly I don't know why and when is in ci[more ...] By cenii  On Thu Aug 24 2017, 04:25pm
None 225 -
Lexia Access Code  Hi i am currently running diagbox version 7.57 I am wanting to recalibrate the clutch, but dont seem[more ...] By gt160  On Mon Jul 31 2017, 11:16am
6 427 gt160
Wed Aug 16 2017, 06:20am
Depollution system faulty Citroen C4 Picasso  I have a Citroen C4 Picasso 2007 and I get depollution system faulty and sometimes in city engine st[more ...] By cenii  On Fri Aug 11 2017, 04:39am
1 293 wozza
Fri Aug 11 2017, 01:38pm
C4 Picasso 2007 tyre puncture detected  I bought a C4 Picasso 2007 and I'm getting on screen tyre puncture detected and stop warning, and de[more ...] By cenii  On Thu Aug 10 2017, 11:53am
4 300 BigJohnD
Fri Aug 11 2017, 06:04am
What is this part called?  There is a vertical bar that holds the plastic wheel arch in place. It is a vertical bar about a foo[more ...] By Gregshutie  On Sat Jul 29 2017, 09:08am
3 360 Gregshutie
Sat Jul 29 2017, 01:04pm
Grand Picasso - various issues. Urgent!  Hi allI'll start the story from the beginning....I have C4 Grand Picasso diesel. We went out for a f[more ...] By mike79  On Sat Jul 15 2017, 11:31am
3 468 mike79
Sat Jul 15 2017, 12:21pm
Limp Home Mode  Familiar story. Approaching home when car went into limp home mode - in outside lane in busy traffic[more ...] By malkyriley  On Thu Jul 13 2017, 10:35am
None 355 -
Starter problems  Hi everybody. I have a high mileage 2005 C4 1.6 HDi. A week or so ago it refused to start with no li[more ...] By wightmanp  On Wed Jul 12 2017, 02:48pm
2 385 HansZarkov
Thu Jul 13 2017, 01:32am
C4 vtr+ heater stuck on full please help going bald  Hi everybody. I have just purchased a 2005 C4 VTR+ 4 door with dual climate control. love the car bu[more ...] By Observer666  On Sat Jul 08 2017, 07:36am
None 310 -
C4 1.6HDi Alternator Replacement  Hi all,I am about to change the alternator on my C4 coupe 1.6HDi VTR. Has anyone else done one and i[more ...] By hosemaster  On Tue Aug 09 2016, 12:43pm
1 687 Neffa
Wed Jul 05 2017, 11:36pm
Activate Aux Input 08 C4GP Glasgow  Stuck the C4GP in for a service and asked if they could sort out the aux input whilst they had it, T[more ...] By Bouncer  On Sun Jul 02 2017, 03:10am
1 382 Bouncer
Wed Jul 05 2017, 04:22am
P0405 Electric EGR valve repeat signal fault : Signal voltage too low  please can someone adviseP0405 Electric EGR valve repeat signal fault : Signal voltage too low By Johnboi79  On Thu Jun 08 2017, 08:09am
4 605 KenC
Thu Jun 08 2017, 02:37pm
Timing belt kit options  Hi guys, I have a 2007 c4 coupe, 1.6hdi. I am looking to replace the timing belt, water pump etc. My[more ...] By Andyd12  On Wed Jun 07 2017, 02:58pm
1 499 jpbroad1970
Thu Jun 08 2017, 02:31pm
Searching for a part name  HiSome kind fellow decided to steal a part from my C4 coupe 07 and I don't know what it is called to[more ...] By Matt22365  On Thu Jun 01 2017, 04:51pm
1 460 rusky
Fri Jun 02 2017, 02:25am
Converting from rear air suspension to coil springs - how to config the computer for no air?  Hi,I have a 2009 C4 Picasso I have just converted from rear air as was having problems with it to sp[more ...] By mdl350  On Wed May 31 2017, 05:06pm
2 490 mdl350
Thu Jun 01 2017, 04:06pm
Maybe a silly question  Just wondering if the interior of c4 3 door would fit into a 4 door? I have unfortunately won on eba[more ...] By manc20  On Wed May 24 2017, 04:04am
3 537 gmerry
Wed May 24 2017, 06:05am
Trim removal  Hi, Just bought a C4 Picasso 2013 MK11 and I need to remove the centre console and the plastic trim [more ...] By Redtardis  On Wed May 10 2017, 02:47pm
None 522 -
Recovery warning  I've just been recovered and the agent winched the car onto the truck bed, using a strop around the [more ...] By wunny  On Tue May 09 2017, 10:01am
None 487 -
Grand C4 Picasso Exclusive plus 2015  Hello, I purchased the car new in 2015 and it has done 9,000 miles now. I will travel around 6,000 m[more ...] By arkiboys  On Sun Apr 23 2017, 04:46pm
3 499 FrankBullitt
Mon Apr 24 2017, 03:56am
C4 1.6HDi 110 FAP with a "non standard" thermostat  Hello,First message on this forum My plan for today was to change the thermostat due to the engine [more ...] By NusNus  On Sat Apr 08 2017, 04:56pm
1 541 NusNus
Tue Apr 11 2017, 10:54am
How to reset "weight of additive in the particulate filter"  Hi, Did any of you managed to reset the counter in subject after the replacement/cleaning of the par[more ...] By gabr  On Mon Apr 03 2017, 10:29am
None 478 -
No New Posts on Popular Thread
AdBlue Top Up - Warning Light Still Shows  Got a 65 plate C4 Picasso 1.6 and the warning light for the adblue came on last night on the road ho[more ...] By DCB  On Wed Mar 22 2017, 09:47am
10 655 routemaster1
Thu Mar 23 2017, 04:59am
C4 2011 rear brakes  Hi new to the forum.I have C4 2011 I a wanting to change rear brake pads which I have no problem in [more ...] By Allan  On Sun Mar 12 2017, 03:42am
1 504 rusky
Sun Mar 12 2017, 03:59am
Hot or Cold?  After I finish work today at 2pm I will drive home and do some routine maintenance on the car. I am [more ...] By riven1962  On Tue Jan 17 2017, 06:22am
3 824 brentdon
Thu Mar 09 2017, 03:59am
Is this the correct tool?  Hi, been looking around but just need confirmation that this tool will reset the DPF fluid ECU. Than[more ...] By chumbaone  On Sun Mar 05 2017, 09:53am
1 511 Biohead
Sun Mar 05 2017, 01:43pm
Rear bumper bracket replace  Hi, does anyone know how to replace the rear bumper brackets? How can I remove them? By Voliotis84  On Fri Dec 30 2016, 12:37pm
1 632 MIB
Sat Mar 04 2017, 05:26am
Steering colomn indicators/lamps  On my Grand Picasso the lamps have stopped working! You can hear indicator clicking, and all feature[more ...] By rowtrak098  On Sun Feb 05 2017, 01:07pm
3 671 TriumphGuy
Wed Mar 01 2017, 01:50am
C4 Foglamp bulbs  Hi AllCould somebody tell me how to replace the front foglight bulbs on my 2013 C4?Thanks By paulinderjia  On Fri Feb 24 2017, 03:45pm
6 625 BigJohnD
Sat Feb 25 2017, 04:26pm
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