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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 29780 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 11207 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 8467 Dave_Retired.
Thu May 10 2012, 05:18am
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 8973 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 20308 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
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16 15760 Johnboi79
Tue Jun 06 2017, 01:15pm
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
3 6614 richardthestag
Mon Apr 17 2017, 10:36am
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 8189 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
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26 20363 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 47418 crapday
Tue Sep 29 2015, 12:39am
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 15934 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 8965 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 6775 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 21626 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 7450 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 8645 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 7418 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 9539 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 7233 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 8327 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 15004 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 7412 Dave_Retired.
Tue Aug 23 2011, 01:20am
 Forum Threads
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
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15 226 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
1 156 KenRobson
Sun Nov 15 2020, 03:16am
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
1 165 KenRobson
Fri Nov 13 2020, 09:48am
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 103 -
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
1 133 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 268 -
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
4 346 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 282 -
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
2 374 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
4 823 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
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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
1 409 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
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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
2 565 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
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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
6 549 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
12 917 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
2 558 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
1 558 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
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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
2 684 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
1 698 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
1 851 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
12 992 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
5 837 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 1851 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 1001 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
3 851 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
None 937 -
Earthing points locations?  Hi All, newbie here, first post. Got an electrical problem so wanting to check all earthing points a[more ...] By mooms5  On Wed Mar 11 2020, 08:18am
None 962 -
Starting 2015 C4 Picasso Diesel after 18 months inactivity  My Father-in-law stopped driving his 2015 C4 Picasso Diesel 18 months ago, and he has now been moved[more ...] By GSouthall  On Sun Feb 09 2020, 07:36am
5 1201 GSouthall
Sun Feb 09 2020, 10:39am
No New Posts on Popular Thread
How to refill the Eolys in to plastic bag (C4 GP 2.0Hdi)  Hi everybody!I need to refill the Eolys but my C4 GP have not container like on old modelsbut this p[more ...] By westvland  On Sun Apr 08 2012, 11:35am
Goto page: [ 1 2 ]
25 44231 rusky
Sat Feb 01 2020, 09:29am
GPS ANTENNA 2012 C4 Grand Picasso  Is there 2 gps antennas in this car? In the backside of the radio there is 3 farce connectors(blue, [more ...] By PTL  On Thu Jan 23 2020, 09:10am
None 1141 -
C4 Picasso (Irish model) boot or tailgate not opening.  So I've had this problem for a while. I researched the issue especially on this forum and I thought [more ...] By pilatesinavan  On Sun Jan 12 2020, 04:03pm
None 1135 -
DPF additive  Hi,I've finally got the message re DPF additive. I've seen the info about which fluid to use dependi[more ...] By aurumdeus  On Tue Dec 31 2019, 09:34am
3 1256 aurumdeus
Thu Jan 02 2020, 12:23pm
Side lights  Hi guys,I have read a few threads on this topic however none that answer my questions. My 2013 grand[more ...] By Sam.l.kelly  On Fri Dec 27 2019, 09:44am
1 1216 routemaster1
Fri Dec 27 2019, 09:59am
Driver's side wing mirror indicator failed  Hi, has anyone experienced their indicator on the wing mirror failing? The car is a 2014 Grand Pica[more ...] By Daz6618  On Fri Dec 20 2019, 06:10am
None 1267 -
Fuse Box Diagram C4GP 2016 (accurate)  Does anyone know where I can get a copy of an accurate diagram of the fusebox 2 (glove box RHD), in [more ...] By RWorgan  On Sun Dec 15 2019, 08:27am
8 1386 rusky
Mon Dec 16 2019, 04:22pm
Grand C4 1.6 VTR coolant bleed valves  Hi everyone,I stupidly topped up my coolant with the wrong type, so decided to drain my coolant syst[more ...] By solus  On Sat Nov 23 2019, 11:53am
1 1293 gittos
Sat Nov 23 2019, 01:36pm
Heater blower c4 cactus  hi guys has anyone removed a heater blower on a 2015 c4 Cactus I can't seem to get it out By taxiguy  On Mon Oct 21 2019, 02:40pm
1 1359 routemaster1
Tue Oct 22 2019, 04:06am
2016 C4 Grand Picasso Exclusive.  Turning the heater on full the other night, the passenger side was nice and toasty but the driver's [more ...] By pennant77  On Fri Oct 18 2019, 09:32am
1 1406 Richard_C
Fri Oct 18 2019, 10:58am
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