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Maintenance and Repair Tips and Procedures.

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[Announcement]
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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48 31956 iscom
Fri Oct 18 2019, 07:39am
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 11683 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 8913 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 9464 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 21249 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 17124 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 7115 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 8705 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
Goto page: [ 1 2 ]
26 21652 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 49317 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 16853 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
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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 9453 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 7211 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 22596 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 7893 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 9078 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 7852 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 10026 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 7658 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 8761 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 15598 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 7823 Dave_Retired.
Tue Aug 23 2011, 01:20am
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Yellow service warning light  Morning all,Sorry if this has already been answered but I can't find it on the forum. About a week a[more ...] By GusWittman  On Fri Mar 05 2021, 02:45am
2 61 GusWittman
Fri Mar 05 2021, 09:25am
No New Posts on Popular Thread
JZR Puretech safety recall  There is a safety recall (JZR) on the 110/130 Puretech Engines details here.... - Click Here - on a[more ...] By gittos  On Sun Feb 07 2021, 02:19pm
13 506 vexorg
Mon Mar 01 2021, 03:07pm
2014 Grand C4 Picasso - Interior Light Fault with Drivers Door, Multiple Faults  Good evening,I have a 2014 Grand C4 Picasso, in the last few weeks the interior light has stopped fu[more ...] By svickery  On Thu Feb 25 2021, 01:55pm
None 60 -
Sat nav swap over  Hi allNew member hereI posted an ad advising I was breaking a 2015 C4 GrandI brought it to repair mi[more ...] By Adriana1  On Thu Feb 25 2021, 09:05am
2 73 EJCitroen
Thu Feb 25 2021, 01:27pm
Can 'Delphi' diagnostics be used?  Quick question regarding resetting the service light once the eolys fluid is topped up/replaced.Can [more ...] By Seany_Jay  On Wed Feb 10 2021, 04:45pm
5 184 Seany_Jay
Fri Feb 19 2021, 11:53am
Frong Heater Blower Not working C4 Grand  Hello there hoping somebody could help have a real big problem with the front blower not working on [more ...] By david56  On Fri Feb 19 2021, 03:03am
None 82 -
C4 hatch - 06 Tank lid error message?  Hi, I'm getting an error message that the tank lid is open. How do I get rid of this? By Kefflon  On Tue Feb 16 2021, 06:46am
None 87 -
No New Posts on Popular Thread
C4 1.6 HDi 2006 Injector ECU Coding needed ?  Hi all,The question if replaced diesel injectors need to be coded into the ECU seems to depend not o[more ...] By nso  On Mon Jan 18 2021, 04:38am
11 420 lasiakutevs
Mon Feb 15 2021, 02:13am
Picasso Grand VTR 1.6 petrol not starting  Hi...having an issue with my C4 Grand. It turns but doesn't start...a few times it sounded like it w[more ...] By TinTN  On Mon Feb 08 2021, 04:35pm
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Particle Filter Level Low & Risk of Filter Blocking?  Hi I'm new to the forums, my name is Sean and this is my first post I recently bought a 59 plate C4[more ...] By Seany_Jay  On Fri Feb 05 2021, 03:49am
7 196 Seany_Jay
Fri Feb 05 2021, 02:11pm
Electrical Circuit Fault still appears despite new battery been fitted.  Hi all ! I have a Picasso Exclusive 65 reg and about 3 weeks ago, on starting the car it didn't igni[more ...] By Razor1967  On Thu Jan 14 2021, 11:08am
4 306 Razor1967
Sat Jan 16 2021, 06:18am
Outside temp sensor - C4 Picasso B78  Hi everyone, the temp sensor in the driver door mirror on my 2014 Picasso died resulting in a tyre p[more ...] By KenRobson  On Tue Nov 03 2020, 10:37am
2 629 KenRobson
Tue Dec 15 2020, 02:51pm
Later 4 pin connector on 2011 c4 1.6hdi  Hi guys,Just fitting new manifold pressure sensor on my 2011 c4 1.6hdi and it's not 3 pinned connect[more ...] By stevoviking  On Wed Dec 09 2020, 10:12am
None 368 -
No New Posts on Popular Thread
C4 Cactus Clutch Slave Cylinder Problems  HI there.first post here, so please feel free to move to the right area if i am posting it in the wr[more ...] By CactusDan  On Thu Nov 12 2020, 10:31am
Goto page: [ 1 2 ]
15 1437 CactusDan
Tue Nov 24 2020, 02:26am
C4 GP suspenison faulty  1st sorry for my bad English. I hope that you understand me.I took the car to the service station, t[more ...] By Ivan_kv  On Tue Nov 24 2020, 01:32am
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C4 Grand Picasso fan won't turn off  Hi all any help with this I'd really appreciate it. I have a Citroen C4 Grand Picasso 2015 model aft[more ...] By Jamcarcal  On Sun Oct 25 2020, 03:35am
1 561 KenRobson
Sun Nov 15 2020, 03:16am
C4 Picasso no boost below 3000rpm  C4 Picasso 1.6 hdi no boost below 3000rpm I have smoke tested for air leaks & smoke is finding i[more ...] By darren3976  On Sun Nov 08 2020, 09:38am
None 492 -
No Heat on the drivers side.....  My 2016 C4 GP has no heat on the drivers side, the passenger side is okany ideas anyone please as we[more ...] By pennant77  On Sat Oct 31 2020, 06:12am
1 524 Ap0qalypto
Sat Oct 31 2020, 08:12am
Reversing error on touch screen  It says check reversing bulb but it’s ok light comes on when I engage revers and goes off when I tak[more ...] By hydroman28  On Sat Sep 26 2020, 01:44pm
None 635 -
9688275280 << what are bolts on this caliper?  Hi C4 owners!I'm trying to change my Grand Picasso front disc brakes but I have a small problem: I c[more ...] By meje  On Sat Sep 19 2020, 02:04pm
4 751 vexorg
Sun Sep 20 2020, 05:59am
C4 Grand Picasso - part ID help  I am replacing the pressure hose as it was leaking on the actuator however where it fits on the top [more ...] By Chrisn  On Sat Sep 19 2020, 11:26am
None 638 -
Citroen Cylinder Numbering  Hi,Recently encountering some misfiring issues with a 2015 C4GP. Garage changed coil packs 2 and 4 a[more ...] By Micasso  On Sun Sep 06 2020, 03:29pm
2 753 vexorg
Tue Sep 08 2020, 08:00am
Brake Caliper  I was trying to do a routine brake pad change on my C4 Grand Picasso but when I tried to remove the [more ...] By Zeus  On Thu May 28 2020, 12:11pm
4 1223 Micasso
Mon Sep 07 2020, 11:17am
C4P Sun Blind removal  Hi everyone this is my first post and I would like advice on the removal of the windscreen blinds an[more ...] By LemonTete  On Thu Aug 27 2020, 12:37pm
None 711 -
Viewing tutorials  Hi all, I've got a tricky job to do and any help advice, I've had water ingress on my wiring loom fr[more ...] By Flanders  On Sun Aug 23 2020, 04:33pm
1 783 gittos
Sun Aug 23 2020, 09:28pm
C4 door handle Problem?  Hi there, I have a problem with door handle on my C4 hatchback 2009 , this part here get out [more ...] By Sirus  On Wed Aug 19 2020, 09:36am
None 752 -
C4 Picasso Help  Hi, I'm new here. I am looking to buy a C4 Picasso 2016 with 38000 miles. 1.6 Diesel 120.Can someone[more ...] By Jenna  On Tue Jul 21 2020, 07:04am
2 954 routemaster1
Mon Aug 10 2020, 04:19am
Hello new owner question  Hello this is a great Forum , I'm a new owner reading through the useful resources. Just bought a 20[more ...] By johnbo1  On Sun Aug 09 2020, 06:42am
None 799 -
Limp mode engine light ESP/ASR WARNING HELP!!!  So broke down on M25 car went into limp mode engine light on ESP/ASR warning light on. Anyone had th[more ...] By c4lover  On Sat Aug 08 2020, 08:01am
6 975 c4lover
Sun Aug 09 2020, 04:00am
No New Posts on Popular Thread
Fluid level critical what pouch?  Hi everyoneOn my dash I have Fluid level critical.It seems I need a fuel additive pouch that goes un[more ...] By c4lover  On Fri Jun 05 2020, 04:23am
12 1381 vexorg
Sat Aug 08 2020, 03:33pm
Sticky creaky gear lever 2017 C4 Flair  Hi All, Newbie to this site. Looks like a load of good info here. I have searched but cannot find a[more ...] By musicman68  On Sat Jul 18 2020, 06:17am
2 935 sarchnary
Sat Jul 18 2020, 09:09am
Timing Belt  HelloI bought a 2007 Picasso 1.6hdi with 133k miles on it. The seller said he thought the timing bel[more ...] By PlumPudding  On Fri Jul 17 2020, 05:20pm
1 924 gittos
Fri Jul 17 2020, 11:02pm
A tip about tow bars vs parking sensors  I would like to share something I discovered that others may encounter. When I bought my 2010 C4 Gra[more ...] By R.Jonsson  On Sat Jul 11 2020, 01:25pm
None 905 -
C4 Picasso servicing tips  Hi AllI have 63 plate petrol Picasso. Never serviced a car before so a little nervous! I would just [more ...] By phil69  On Mon Jun 22 2020, 03:41pm
2 1057 gittos
Tue Jun 23 2020, 08:45am
Can the iCarsoft FR v2 OBD tool configure the Stereo?  Does anybody know if this OBD tool can configure the Stereo/CD unit? This one and iCarsoft CP 2 seem[more ...] By R.Jonsson  On Mon Jun 15 2020, 02:29pm
1 1072 rusky
Mon Jun 15 2020, 04:42pm
Alarm sounds after battery change Grand Picasso 2015  Alarm sounds when locking Citroen 2015 Grand Picasso after battery change. Seen some info but no def[more ...] By Brihey8  On Wed May 06 2020, 01:01pm
1 1272 Brihey8
Fri May 22 2020, 01:27pm
No New Posts on Popular Thread
2006 C4 1.6 16v rounded caliper carrier bolts help to remove and size bolt to replace.  Hi Folks,I was doing my discs and pad on my C4 and done the front no problem but went to do the back[more ...] By Dtsc419  On Thu May 07 2020, 05:34am
12 1468 routemaster1
Thu May 21 2020, 12:51pm
2004 1.6 C4 GP Fan/Auxiliary belt replacement  Hi All,My fan/auxiliary belt has snapped and I am trying to fit the replacement. I've figured out h[more ...] By NevilleT  On Sun May 10 2020, 03:36pm
5 1261 routemaster1
Mon May 11 2020, 08:16am
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
1 2248 starmover
Sat May 09 2020, 05:09am
Battery  My car has been laid up for coming up for 3 weeks due to the lockdown. I am worried that that batter[more ...] By Keith  On Thu Apr 16 2020, 08:31am
7 1444 iscom
Wed Apr 29 2020, 05:56am
2014 C4 Picasso  HiNewbie on here !Had a rattle at the front of the car and my mechanic has found a bar/strut that he[more ...] By garrydeakin  On Tue Apr 28 2020, 10:13am
3 1257 vexorg
Tue Apr 28 2020, 02:35pm
C4 coupe VTR 1.6HDi Air Con regas.  Just thought I would share my experience of doing my own air con regas.I bought my coupe a couple of[more ...] By Mandk  On Mon Mar 23 2020, 07:44am
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