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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 Dave_Retired.  On Thu Feb 09 2012, 01:14am
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48 67943 iscom
Fri Oct 18 2019, 07:39am
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 Dave_Retired.  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 Dave_Retired.  On Thu Mar 08 2012, 08:49am
8 21155 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 Dave_Retired.  On Sat Jun 14 2014, 11:51am
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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 Dave_Retired.  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 Dave_Retired.  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 18177 Dave_Retired.
Thu May 10 2012, 05:18am
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
4 17896 Zapaction99
Sun Sep 12 2021, 10:12am
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
Goto page: [ 1 2 3 ]
38 80890 LTL
Sat Jun 19 2021, 10:42am
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
5 18950 TriumphGuy
Mon Sep 04 2017, 07:00am
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
8 33037 trev h
Fri Jul 21 2017, 03:40am
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
Goto page: [ 1 2 ]
16 39106 Johnboi79
Tue Jun 06 2017, 01:15pm
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
3 18496 geirars
Sun Nov 20 2016, 02:11pm
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
Goto page: [ 1 2 ]
26 44062 routemaster1
Fri Mar 11 2016, 10:36am
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 29165 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
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 19195 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 16440 Grumpy GrandPa
Sat Jun 07 2014, 08:01am
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 34504 Dave_Retired.
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 17232 Dave_Retired.
Tue Dec 10 2013, 01:14pm
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 18366 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 Dave_Retired.  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 17117 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 Dave_Retired.  On Thu Jan 24 2013, 11:24am
6 19558 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 Dave_Retired.  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 16897 Dave_Retired.
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 17951 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 25446 Dave_Retired.
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 17077 Dave_Retired.
Tue Aug 23 2011, 01:20am
 Forum Threads
C4 Grand Picasso 2016 2.0 150 HP front bumper lower tray removal.  Hiwould anybody have some instructions for removing the front bumper lower tray. I can easily remove[more ...] By sauntson  On Thu Sep 07 2023, 02:22pm
3 210 sauntson
Sat Sep 09 2023, 09:44pm
C4 1.6VTi Permanent Knock Sensor Code P0327  Hi guys,Hoping someone can help me here. So I have a 2010 Citroen C4 1.6VTi and I've had a few probl[more ...] By Off_Da_Wall_  On Tue Sep 05 2023, 02:02pm
None 201 -
Depollution system faulty  Hi.I am new here and I have a problem.I get the message depollution system faulty and the car loses [more ...] By Swedess  On Tue May 30 2023, 06:16am
6 1051 Ap0qalypto
Thu Aug 10 2023, 09:38am
Car key has stopped working  Hi all,The other day I went to start my 2009 Citroen C4 and the dash board said “fault - anti theft [more ...] By Sim129  On Mon Aug 07 2023, 12:48pm
1 454 Ap0qalypto
Mon Aug 07 2023, 01:53pm
C4 Picasso rear seat installation - what torque?  Hello, I took the folding rear seats (seats 6 and 7) out of my 2015 C4 Grand Picasso. This was strai[more ...] By bobt  On Thu Aug 03 2023, 11:51am
None 423 -
Engine Management System Faulty  Hello C4 owners,I am on the way for vacation. I had an fault today on the road. A message “Engine Ma[more ...] By yvzkdr  On Sun Jun 25 2023, 11:43am
1 706 Ap0qalypto
Mon Jun 26 2023, 12:42am
C4 Grand Picasso 2012 Aircon failure and DIY repair  I recently fixed my car’s air conditioning so I thought I’d write a few notes in case it helps someo[more ...] By Zapaction99  On Wed Jun 21 2023, 04:11pm
None 716 -
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
4 9386 Brihey8
Tue Jun 13 2023, 11:41am
Autodata pin data  Hi, does anyone know of a free autodata? Or where i can find ecu pin data please? Thanks By ashleyc4  On Thu May 25 2023, 01:41am
None 902 -
Replacing Volumetric Sensors  Hi all,I have the common problem with the alarm sounding but my fault lies with the volumetric senso[more ...] By adcover  On Thu May 18 2023, 09:52am
None 920 -
External air temp sensor location P0070  Hi C4 lovers, my Citroen C4 2012 hatch 1.6 HDI is showing an error code P0070 which is for the exter[more ...] By Neobium41  On Sat Apr 15 2023, 05:48am
1 1240 Ap0qalypto
Sat Apr 15 2023, 06:57am
C4GP 2009 Passenger side wiper stops upright  When I start the front wipers only the driver side wiper is working. The passenger side wiper starts[more ...] By bagmol  On Thu Apr 13 2023, 07:53am
1 1247 Farmerguy
Fri Apr 14 2023, 02:35am
Diagbox 9.68  Hi everyone - i have been doing service on my c4gp, i have used the diagbox many times before on a p[more ...] By Farmerguy  On Sun Apr 09 2023, 03:50am
None 1197 -
Fuel injectors location  Hi C4 owners.Can someone please help me find my fuel injectors? I searched and searched and found no[more ...] By younes_hb  On Wed Mar 15 2023, 09:02am
2 1398 Farmerguy
Wed Mar 15 2023, 03:13pm
Bonnet latch come apart  Hi guys,My C4 bonnet latch has come apart, the spring and plastic patch has come away from the cable[more ...] By Pioneeruk  On Wed Sep 01 2021, 12:23pm
7 8481 tory
Tue Feb 28 2023, 02:30am
C4 Picasso mk2 2013 - Passanger electric wing mirror stutters  Recently on my 2013 mk2 I have noticed a couple of peculiar things regarding the passenger electric [more ...] By scaryxpuppy  On Mon Feb 20 2023, 09:31am
None 1495 -
AdBlue Additive  Anyone tried or have any information of this additive ? - Click Here -  By skorpion  On Fri Jan 27 2023, 12:58pm
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Rear Passenger Door Unlocking Itself - 2013 C4  Hi, my 2013 C4 is having issues with locking. When I lock the car, all doors audibly lock, except wh[more ...] By kiwicitroen  On Wed Jan 18 2023, 02:26pm
None 1750 -
2010 1.6hdi C4 Grand Picasso wipers not working.  Hi, I've a 2010 C4 Grand Picasso, neither front wipers are working. Have replace both motors with wo[more ...] By ambro74  On Wed Jun 19 2019, 08:22am
2 5817 Ap0qalypto
Mon Jan 16 2023, 06:21am
Citroën C4 Picasso ll 1.6 THP 2009 petrol - engine management system faulty - limp home?  Hello! I just recently bought a c4 picasso 2009 which is experiencing some problems. I was not bough[more ...] By bagmol  On Sat Dec 31 2022, 01:37am
3 2105 Ap0qalypto
Mon Jan 09 2023, 06:29am
Auto folding broken wing mirror, bearing folding support strut for picasso and renault etc fix  My wing mirror was knocked off awhile ago and it was the below plastic tube thing that was broken, f[more ...] By Itchigo27  On Fri Jul 01 2022, 12:13pm
2 4223 varkanoid
Thu Dec 29 2022, 12:01pm
Key stopped working  Hi2015 C4 Picasso GrandeOne of the keys has just stopped working. I doesn't open the doors, and it c[more ...] By bhaddow  On Mon Dec 12 2022, 02:53pm
2 2154 bhaddow
Fri Dec 16 2022, 02:54am
Citroen C4 1.6 HDI 2007 Electrical problem Headlights short circuit  Good Evening.I have a Citroen C4 1.6 HDI 2007 . Last 6 months i have problems with the injectors . E[more ...] By theo200273  On Thu Dec 08 2022, 04:51am
None 2077 -
P1A9C  Citroen C4 2012 1.6 e-hdiStop/Start deactivatedI have the following fault codes that came up after t[more ...] By Salonen32  On Thu Nov 10 2022, 04:27am
None 2360 -
C4 Picasso Mk2 2014 - P0809 - Clutch Master Cylinder Replacement  My clutch pedal is really low - now i get a engine fault and handbrake fault when powering on the ca[more ...] By duncanc  On Tue Jun 14 2022, 04:41am
1 4454 sallug
Mon Oct 31 2022, 11:21am
Citroën C4 MKII heater panel removal and switch-out  So last week I did something dumb. I used my Citroën C4 to move some wooden borders for my floor and[more ...] By Icaruswax  On Mon Oct 31 2022, 04:58am
None 2309 -
Windscreen water tank replacement  Hello people!Greetings from Greece!I am a proud owner of C4 II B7 Hatchback since 2017.It's a EAT6 T[more ...] By StergioC  On Fri Sep 30 2022, 05:21am
3 2848 StergioC
Fri Oct 07 2022, 04:20pm
2015 Grand C4 Picasso - Electric problems when starting  Hello,I have some problems with my C4 Grand Picasso (2015). I have tried to google similar behaviour[more ...] By miguel-picasso  On Mon Oct 03 2022, 09:36am
4 2847 miguel-picasso
Mon Oct 03 2022, 05:33pm
2015 Grand Picasso (B78) battery change to restore stop/start  I've just returned from a 30-mile round trip on day 3 with a newly-fitted battery which, I'm happy t[more ...] By WillyRose  On Mon May 09 2022, 07:43am
7 5269 DeuxChevaux
Thu Aug 25 2022, 05:22pm
Panoramic roof problem  Hi all. I have just brought my second grand Picasso 2012 plate. but the panoramic roof is not workin[more ...] By lionel399  On Tue Aug 23 2022, 02:06am
None 3192 -
Stopped by police  Hi while returning from North Wales we were pulled over for a caravan safety check. All passed BUT h[more ...] By bluetntmo  On Mon Aug 22 2022, 06:23am
6 3555 bluetntmo
Mon Aug 22 2022, 05:06pm
Engine Management Light (EML)  I have noticed that in Hot conditions 25 degrees centigrade ambient and above like present heatwave [more ...] By Supercar  On Thu Aug 11 2022, 09:23am
1 3483 Farmerguy
Fri Aug 12 2022, 01:40am
error code P107A. C4 PICASSO (B78)  Hello friends.I cleaned and replaced the MAP sensor. At the garage, they replaced the EGR and did pr[more ...] By itzikv  On Mon Aug 01 2022, 01:43am
None 3572 -
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
8 9702 Seany_Jay
Sun Jun 12 2022, 05:39am
Diagbox activation  Hi allI don't know if it belongs here but here goes. I have bought a diagbox 9.91 system preinstalle[more ...] By Farmerguy  On Mon Jun 06 2022, 11:27am
None 4470 -
1.2l 110bhp Puretech engine cam belt change  Ok there has been a recall on the turbo version of these engines made between 2014 - 2017 which my w[more ...] By DeuxChevaux  On Wed Mar 30 2022, 03:20am
2 5519 DeuxChevaux
Thu Mar 31 2022, 03:06am
The signal light (front and side) is on permanently  I owner of 2009 C4 1.6 petrol. The signal light (front and side) is on permanently of the left side,[more ...] By boaz  On Sat Mar 05 2022, 12:09am
None 5730 -
Diagbox V9.68 "No Dialogue" error  Trying to use Diagbox V9.68 via VMWare but getting "No Dialogue" error when trying to connect to any[more ...] By tomandjo2  On Sun Feb 06 2022, 08:47am
4 6269 tomandjo2
Sun Feb 27 2022, 08:57am
engine bay schematic/drawing.  Hi, i was hoping that one of the members might have a engine bay schematic of a 2011 c4 picasso 1.6 [more ...] By stevied  On Sat Feb 12 2022, 05:38pm
None 5821 -
C4 Gearbox Rough between 1 and 2  Hello my citreon c4 1.6 vti 4 speed has a rough gear shift between 1st and 2nd and esp when under lo[more ...] By Lukejoso  On Sat Jan 29 2022, 03:47pm
None 6105 -
No New Posts on Popular Thread
Parking light on C4 Grand Picasso  Hi. Can someone please help. Its just a quick question about the handbrake light in my C4 Grand Pica[more ...] By Johnsheffield  On Thu Jan 20 2022, 01:13pm
13 6782 Ap0qalypto
Fri Jan 28 2022, 02:12pm
C4 Grand Picasso jerks at start and at changing gears (automatic)  Hi All,my C4 Grand Picasso jerks at start and at changing gears (automatic).it is 2008 7 seater car.[more ...] By salah  On Thu Jan 13 2022, 09:45am
7 7177 vincentfishing
Tue Jan 18 2022, 09:49am
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