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Maintenance and Repair Tips and Procedures.

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Announcement Thread
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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37 8844 fulabeer
Wed Aug 24 2016, 07:10PM
Announcement Thread
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
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Announcement Thread
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 5541 wilcovh
Thu Jul 17 2014, 05:17PM
Announcement Thread
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 2015 -
Announcement Thread
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
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
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Announcement Thread
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 3851 Web Admin Only
Thu May 10 2012, 05:18AM
Sticky Thread
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
2 2298 Squeezy
Tue Aug 09 2016, 06:47AM
Sticky Thread
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 6977 routemaster1
Fri Mar 11 2016, 10:36AM
Sticky Thread
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 24445 crapday
Tue Sep 29 2015, 12:39AM
Sticky Thread
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
4 1730 Stuart Sauntson
Sun Sep 20 2015, 05:41AM
Sticky Thread
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 4894 andyste1
Tue Mar 17 2015, 02:57PM
Sticky Thread
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
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
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
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
1 1572 polestarboy
Wed Oct 22 2014, 03:01PM
Sticky Thread
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 3617 DeuxChevaux
Thu Oct 16 2014, 02:30AM
Sticky Thread
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 2067 Grumpy GrandPa
Sat Jun 07 2014, 08:01AM
Sticky Thread
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
5 6418 Crouchy
Sat Mar 15 2014, 11:36AM
Closed Sticky Thread
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 8644 Web Admin Only
Wed Mar 12 2014, 04:51AM
Sticky Thread
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 2469 Web Admin Only
Tue Dec 10 2013, 01:14PM
Sticky Thread
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
3 4006 routemaster1
Tue Mar 12 2013, 01:08PM
Sticky Thread
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
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 3206 Commodore
Thu Feb 28 2013, 07:15AM
Closed Sticky Thread
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
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Sticky Thread
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 2842 DeuxChevaux
Sat Jan 26 2013, 04:55AM
Sticky Thread
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 4020 Bin-The-L-Plates
Sat Jan 26 2013, 03:30AM
Sticky Thread
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
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
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 3240 Web Admin Only
Wed Jan 25 2012, 08:07AM
Sticky Thread
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 3922 PPP7
Tue Nov 15 2011, 03:56PM
Sticky Thread
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 6575 Web Admin Only
Wed Nov 09 2011, 01:19AM
Sticky Thread
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 3262 Web Admin Only
Tue Aug 23 2011, 01:20AM
 Forum Threads
Fuse box location  Hi all,I have both a 2016 and a 2012 grand picasso.The rear wiper has stopped working on the 2012 mo[more ...] By captain.cupcake  On Wed Oct 19 2016, 11:46AM
2 63 captain.cupcake
Thu Oct 20 2016, 03:38AM
An appeal to Mk1 C4 diesel owners ; re bonnet liner  HII have decided to fit a bonnet liner to my petrol C4 2006 as someone said it is worthwhile but I w[more ...] By hgee  On Thu Oct 13 2016, 04:51AM
2 82 hgee
Thu Oct 13 2016, 11:09AM
Key Fob Damaged Circuit Board  Hi all, I'm a new member and this is my first post. I'm not much of a genius when it comes to genera[more ...] By alexconnor7  On Sat Oct 08 2016, 02:10PM
1 73 BigJohnD
Sat Oct 08 2016, 03:11PM
Citroen C4 steering angle sensor comms unit reset  Hello, I have a 2010 Citroen C4 1.6 HDI EGS VTR+ and had a second hand steering rack put in 6 months[more ...] By dstyles  On Mon Oct 03 2016, 04:08PM
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Citroen c4 1.6 hdi 2011 rear end whine  Hi,Recently purchased a C4 2011 1.6 diesel. I have noticed between 56-63 mph a rear end whining nois[more ...] By rhambri  On Fri Sep 30 2016, 10:55AM
None 69 -
2014 New C4 Picasso Filter Locations.  Hi All,I've just bought a brand new second hand 2014 C4 Picasso!!. I was hoping someone knows where [more ...] By johnnybee  On Sun Sep 25 2016, 07:43AM
3 126 gittos
Sun Sep 25 2016, 03:39PM
HDI engine and fuel additives  Hi all, i would like to know the collective wisdom of forumites on using fuel additives with the 1.6[more ...] By pablo_picasso  On Fri Sep 23 2016, 06:15PM
2 138 BigJohnD
Sat Sep 24 2016, 12:55PM
Unknown Engine part  Hello everyone, Just bought a C4 VT+ Diesel 2000cc and above the oil filter is a piece of curved met[more ...] By Klondike  On Fri Sep 23 2016, 03:00AM
1 124 Grumpy GrandPa
Sat Sep 24 2016, 03:41AM
Lost sat nav CD player reversing sensors  Hi all.New to the forum but owned our 2008 C4 Grand Picasso Executive for a few years and to be hone[more ...] By Coxy  On Tue Sep 06 2016, 09:04AM
7 208 Coxy
Sun Sep 18 2016, 06:55AM
C4 Picasso EGS VTR 2.0 16v judders in first when cold  HiJust brought a 2007 grand Picasso when cold it judders on pull off but when warm it's fine only go[more ...] By Dcfckev  On Sat Sep 17 2016, 06:04AM
5 135 Dcfckev
Sun Sep 18 2016, 03:43AM
C4 Picasso 2007 transmission  Hello All , Actually i'm new to this forum and having a problem and need your support when car chang[more ...] By Guevara  On Mon Aug 29 2016, 03:48AM
None 110 -
C4 Tyre Pressure label missing  Hi.First post - be gentle...I've had a search around the forum and can't see the required info.I've [more ...] By Jaggies  On Wed Aug 10 2016, 04:27AM
8 309 routemaster1
Tue Aug 16 2016, 03:56PM
GPC4 cracked centre air vent  I have a year old GPC4 exclusive. The facia at 2 fins of the drivers side centre vent have cracked.[more ...] By Lewisgt  On Mon Aug 15 2016, 12:57PM
1 136 wilcovh
Mon Aug 15 2016, 04:20PM
Lexia/diagbox help  Hoping someone out there can help, iv'e recently replaced my eloys fluid & changed air suspensio[more ...] By trev h  On Wed Aug 10 2016, 12:43PM
1 180 trev h
Mon Aug 15 2016, 05:15AM
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
None 119 -
Pollen filters - C4GP 2008  I'm looking to replace the pollen filters. Have searched previous threads for the pollen filters. As[more ...] By avish222  On Sat Aug 06 2016, 02:59AM
2 178 BigJohnD
Sat Aug 06 2016, 05:45AM
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
2 6053 drnick8691
Tue Jul 26 2016, 11:30AM
Rear parking sensor fitting, after market kit with display. C4 Picasso 2009.  Having read and printed the fitting of an after market rear sensor kit. See Jeremy_VTR dated 04 Sept[more ...] By RickyH  On Thu Jul 21 2016, 05:24AM
None 210 -
2013 C4 Mk2 Rear Main Oil Seal  Anyone had any run ins with the rear main oil seal on the C4?Just had the car serviced by Citroen in[more ...] By Naz_kid  On Tue Jul 19 2016, 11:40AM
None 165 -
'57 C4 Grand Picasso Exclusive...Help???  I'll try and be brief!Need to change pads on rear brakes (which has Electric parking break), do I ne[more ...] By KrazyKop  On Tue Jul 19 2016, 11:00AM
None 148 -
Cambelt  I am very happy with my C4 Picasso now! The aircon works and my system too rich error has gone away[more ...] By TeladiPhoenix  On Thu Jun 30 2016, 09:42AM
1 275 wozza
Thu Jun 30 2016, 09:59AM
No New Posts on Popular Thread
Tyres  Twas thinking of changing my front tyres afer 20,000 miles.Got back from 200 mile journey late last [more ...] By Grumpy GrandPa  On Sat Jun 11 2016, 07:40AM
10 558 routemaster1
Mon Jun 27 2016, 03:13AM
C4 Grand Picasso power windows control panel removal.  Hi all,Anybody knows how to remove the driver's side windows panel in order to try and fix it?I have[more ...] By stevewav  On Wed Jun 15 2016, 02:55PM
1 283 KenC
Thu Jun 16 2016, 03:37AM
Brake discs  Can anyone please tell me what size brake discs my car will take. It's a 1.6 hdi loebThanks  By Elizabeth  On Wed Jun 15 2016, 04:08AM
5 296 BigJohnD
Wed Jun 15 2016, 10:37AM
2007 Grand Picasso 1.8 vtr poor acceleration -power lag  HI,Hope someone can help. I have the above car with 70K. Since I have had it does suffer with poor a[more ...] By Citc4grandpic  On Wed Jun 08 2016, 07:50AM
None 234 -
C4 GP semi auto  Hi all I have had a very noisy gearbox for a while now but I have finaly found a very cheap place wh[more ...] By drdeath  On Sun Jun 05 2016, 02:50PM
None 233 -
turbo disasters????  Now then, is Honest John talking out of his exhaust pipe? - Click Here - Q: I have heard reports of [more ...] By Grumpy GrandPa  On Thu Jun 02 2016, 04:03AM
4 368 riven1962
Fri Jun 03 2016, 09:00AM
Brake Fault and STOP Displayed after fitting new Pagid front discs and pads  Apologises for not searching this first and I'm sure its been covered but hear I go. Just replaced t[more ...] By cjmads  On Thu Jun 02 2016, 07:49AM
None 218 -
Fault Code P0238 and P1351 Followed by Depollution system faulty for C4 55reg 1.6hdi  I've searched in google and found some potential solutions to resolve these fault codes. Could anyon[more ...] By love2drive  On Wed Jun 01 2016, 05:00PM
None 268 -
Electric parking brake handle damaged  I was a little rough with the electric parking brake handle on c4 Grand Picasso 2007. It is either [more ...] By looktommynohand  On Sat May 28 2016, 12:08PM
1 269 KenC
Sun May 29 2016, 03:46AM
2008 C4 1.6HDi service  HI all,I've just recently bought a 2008 C4 1.6HDi VTR+. There is no service history or book with the[more ...] By soupy600  On Fri May 20 2016, 08:09AM
3 410 soupy600
Tue May 24 2016, 05:46AM
C4 Grand Picasso key fob draining the battery  Wondering if anyone can help out. I bought my GP in December and have had absolutely no problems. Ab[more ...] By itchycritchy  On Tue Apr 12 2016, 02:49PM
2 504 itchycritchy
Tue Apr 12 2016, 03:09PM
How to get rid of musty smell in air-con  OK...you have checked you have no leaks into the cabin air-con is properly maintained and re-gassed,[more ...] By Ballistic  On Mon Apr 04 2016, 07:20AM
None 439 -
ESP & ABS Warning Lights  I have a 2005 1.6 HDI C4 which developed a problem with the ABS system. My investigations showed tha[more ...] By wightmanp  On Sun Jan 24 2016, 10:00AM
1 609 drdeath
Sat Mar 26 2016, 12:48PM
C4 Picasso 'Hand Brake Fault'  I have attempted to change the brake light switch, as was suggested in FAQ that this may be the prob[more ...] By VulcanXH558  On Thu Mar 24 2016, 09:18AM
3 485 KenC
Fri Mar 25 2016, 02:48AM
P1694 fault:piloted engine stop-and-start(damp) Help me out.  I got my car scannet and i got this opinion from the scan: P1694 fault:piloted engine stop-and-start[more ...] By Bjartmann  On Mon Mar 21 2016, 03:53PM
1 522 rusky
Mon Mar 21 2016, 04:01PM
EGS gearbox "maintenance"  I like things to last "forever", so at 70,000mls I changed the oil in my C4 EGS gearbox.The gearbox [more ...] By C4Steve01102013  On Mon Oct 19 2015, 02:18PM
3 1064 Mistermena
Sun Mar 20 2016, 08:25AM
Tip for replacement of mounting for air box when changing air filter  Hi folks Thought I would pass this tip on for when you do your own air filter change , I fix [more ...] By WizardofChaos  On Tue Aug 26 2014, 05:41AM
3 1499 DeuxChevaux
Sat Mar 19 2016, 05:55PM
C4 Picasso Exclusive EGS 2008 Pollen Filter Replace  Just replaced my pollen filters this morning.Info for anyone going to do this job.They are located o[more ...] By calderscot  On Fri Jun 20 2014, 06:52AM
2 1504 Mistermena
Sat Mar 19 2016, 06:08AM
DIY DPF filter cleaning  Hi all just thought I would let you know how I cleaned a blocked DPF it may already be known to this[more ...] By coolrooster  On Mon Aug 25 2014, 05:27AM
6 3984 Mistermena
Sat Mar 19 2016, 05:10AM
No New Posts on Popular Thread
1.6HDi Engine Removal EGR Valve Location  Hi, I'm dropping the engine/gearbox on a 1.6HDi110 WITHOUT FAP and the instructions say to remove t[more ...] By gmerry  On Wed Aug 03 2011, 03:16PM
12 28376 marcopi
Thu Mar 10 2016, 07:43AM
How to replace C4 Picasso radiator.  Hi there, my radiator started leaking today on my C4 picasso 1.6 hdi around the middle area. How eas[more ...] By f1fanman  On Sun Feb 28 2016, 04:06PM
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