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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 Dave_Retired.  On Thu Feb 09 2012, 01:14am
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46 13889 riven1962
Mon Feb 05 2018, 07:45am
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 Dave_Retired.  On Thu Dec 04 2014, 07:21am
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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 Dave_Retired.  On Thu Mar 08 2012, 08:49am
8 7546 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 Dave_Retired.  On Sat Jun 14 2014, 11:51am
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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 Dave_Retired.  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 Dave_Retired.  On Wed Mar 26 2014, 02:32pm
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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 5053 Dave_Retired.
Thu May 10 2012, 05:18am
Sticky Thread
[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 5357 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 10963 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 5368 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 2920 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 3904 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 10966 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 31339 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 7645 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
None 2019 -
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
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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
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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 5251 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 3347 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 12694 Dave_Retired.
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 3876 Dave_Retired.
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
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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 5177 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 Dave_Retired.  On Fri Feb 01 2013, 09:49am
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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 4170 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 Dave_Retired.  On Thu Jan 24 2013, 11:24am
6 5557 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 Dave_Retired.  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
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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 4226 Dave_Retired.
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 5029 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 8871 Dave_Retired.
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 4357 Dave_Retired.
Tue Aug 23 2011, 01:20am
 Forum Threads
Problem starting Citroen C4 Grand after battery replace.  Hi, I have a Citroen C4 Grand diesel 7 seat 2008. After replacing the battery, I can not start the c[more ...] By terjew  On Sun Feb 18 2018, 08:16am
3 90 BigJohnD
Mon Feb 19 2018, 07:22am
Error warnings no start stop and various HELP  2012 gp 1.6hdi airdream. Only 35k miles. All good. On school run, chirping / squealing from engine b[more ...] By Colls10  On Tue Feb 13 2018, 03:01pm
3 101 wozza
Wed Feb 14 2018, 12:24pm
Speed Control Faulty  HeyCurrently experiencing problems with a Citroen C4 sx. Its a 2007 automatic. A speed control fau[more ...] By greengo  On Sat Feb 03 2018, 07:26am
4 154 FakeConcern
Wed Feb 14 2018, 10:17am
Noisy interior  Hi all, i have a c4 grand picasso 2014 which ive just bought, its lovely but im getting a vibrating [more ...] By Auggloop  On Sat Jan 27 2018, 09:23am
1 162 wozza
Sat Jan 27 2018, 11:36am
C4 grand picasso 2007 quarter glass removal  Hi can anybody tell me how do I remove/replace the front window quarter glass on a 2007 C4 Grand Pic[more ...] By dondt  On Wed Jan 24 2018, 08:03pm
None 141 -
Lcd screen replacement in C4 1.4 'cool' 2007  Hi guysIve been looking all over the place and cant find an answer anywhere. I need to replace the c[more ...] By MillyWinter  On Sat Jan 13 2018, 12:56pm
1 231 FakeConcern
Sat Jan 13 2018, 02:01pm
Headlamp unit replacement  Hi,We have had a slight bump in our new C4 Grand Picasso (6 months old). The bracket holding the hea[more ...] By Hoppityhop  On Sat Jan 13 2018, 09:08am
None 211 -
Timing belt tools  Hi, I'm going to be changing the timing belt and water pump on my 1.6 hdi soon...I have access to a [more ...] By HansZarkov  On Thu Jan 04 2018, 05:59pm
1 238 Mrfixit
Fri Jan 05 2018, 05:44am
No New Posts on Popular Thread
Vacuum box melted resulted in no turbo.  Hopefully this little story could help someone else if you notice your diesel C4 really lacking in p[more ...] By wired00  On Tue Apr 09 2013, 08:14pm
10 3561 wired00
Sat Dec 23 2017, 01:39pm
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
11 1151 avionista
Sat Dec 16 2017, 06:03am
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 396 -
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
2 544 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 10347 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
3 484 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
4 556 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
2 385 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 365 -
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
4 502 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 441 -
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 426 -
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
3 623 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
1 515 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 468 -
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 467 -
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 485 -
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
6 800 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
1 607 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
4 602 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
3 649 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
3 854 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 631 -
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
2 689 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 570 -
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 1001 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
1 720 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
4 962 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
1 809 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
1 755 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
2 839 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
3 842 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 805 -
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 791 -
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