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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 45088 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 14844 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 11990 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 10631 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
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38 61011 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 12651 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 25686 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 25138 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 12067 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 29864 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 21397 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 12713 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 10272 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 26801 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 10999 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 12142 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 10942 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 13195 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 10689 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 11812 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 18937 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 10865 Dave_Retired.
Tue Aug 23 2011, 01:20am
 Forum Threads
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
7 164 neilp
Tue Jan 25 2022, 02:13pm
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
7 338 vincentfishing
Tue Jan 18 2022, 09:49am
circuit diagram for citroen cars particularly c4 grand picasso 2015 petrol 1.6 165HP full auto  Where can we obtain circuit diagrams for Citroen cars? The Haynes Autodata mini-pics don't give eno[more ...] By citfan  On Fri Dec 31 2021, 03:27pm
5 531 BigJohnD
Thu Jan 06 2022, 08:13am
hi new here . got a problem need some help with if poss cheers  HI alli have a c4 picasso mk 2 14 plate diesel changed the track rod and and bottom ball joint today[more ...] By themadmanc77  On Sat Nov 20 2021, 11:39am
9 1233 themadmanc77
Thu Nov 25 2021, 09:14am
Rear hub torque  I'm a Newbie so please go easy if htis is not hte right thead to post in, i'd appreciate direction i[more ...] By Dean001  On Sat Oct 23 2021, 01:19pm
1 1405 vexorg
Sun Oct 24 2021, 06:57am
Citroen c4 1.6 e-hdi exclusive 2012 handbrake switch replacement  Greetings,I have a question regarding the handbrake for my Citroen c4 1.6 e-hdi exclusive 2012. Basi[more ...] By Denis.R  On Sat Oct 02 2021, 08:12am
1 1641 vexorg
Sun Oct 03 2021, 05:44am
mk1 c4 wiring diagram (Boot lock)  Hi peopleshope someone can help.I have a 2007 C4, I'm currently having issues with the boot which su[more ...] By imdady  On Sun Sep 26 2021, 01:59pm
1 1641 vincentfishing
Sun Sep 26 2021, 03:13pm
Overfilled tank - won't start  I have a C4 SX, 2005 (1.6 petrol engine). Everything worked fine until Friday, when I topped up the [more ...] By toomuchpetrol  On Sun Sep 26 2021, 06:17am
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Touch screen keyboard foreign characters  HELP...!I've just bought a 2016 GC4P and it's taken me a while to work my round the touch screen men[more ...] By MickB92  On Wed Sep 08 2021, 01:26pm
None 1798 -
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
6 2146 DeuxChevaux
Thu Sep 02 2021, 04:05pm
C4gp 2008 error code p1718 ( gear lever selector faulty)  Hi good evening, I was wondering if anyone could help answer a question at all please, I have been [more ...] By StrangeJamie  On Sat Aug 28 2021, 04:19pm
None 1995 -
AdBlue emissions control fault  Hi, these warnings came up this afternoon. Is it the dreaded AdBlue pump failure or is worth topping[more ...] By Keith  On Sun Aug 22 2021, 01:42pm
None 2112 -
6 speed auto 2008 C4 2.0 jdi  Hi all maybe a silly question I'm trying to remove the shifter stalk or knob on my 08 6 speed automa[more ...] By Xjrboy  On Thu Aug 19 2021, 09:14am
None 2115 -
Puncture repair kit  Picked up a screw in the front nearside tyre and went to a tyre dealer to get it fixed. He got me t[more ...] By wunny  On Thu Aug 12 2021, 12:06pm
9 2405 vexorg
Fri Aug 13 2021, 04:06am
Injector still leaking!  Hi allI had a go at replacing the injector seal that was leaking. I replaced theb2 plastic seals and[more ...] By Southerncitroen  On Wed Jun 09 2021, 02:01pm
1 2550 vexorg
Thu Jun 10 2021, 03:39am
Loeb C4 Suspension  Hi All,Attempted to replace the top mounts on my C4 today and every imaginable problem occurred. Fin[more ...] By MartWassell  On Sun Jun 06 2021, 01:33pm
1 2611 vexorg
Mon Jun 07 2021, 07:22am
Cental locking help  Hi All I'm a new owner of a 2010 Grand Picasso vtr+ with 115k I have a issue with the central locki[more ...] By BTDeano  On Mon May 24 2021, 08:07am
None 2612 -
Exhaust manifold leak?  Hi allI suspect that either the diesel injector seal or the inlet manifold gasket are faulty on my 2007 C4 1.6 HDi 16V (92hp)The Injector seal seems to be fairly easy to replace, but I've a feeling the inlet gasket is abit more involved. Is that correct? If so, what does replacing the inlet gasket involve? A quick step by step guide would be awesome!Thanks all By Southerncitroen  On Sun May 23 2021, 07:10am
1 2657 vexorg
Sun May 23 2021, 09:13am
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
3 3211 GusWittman
Sun May 16 2021, 12:06pm
C4  I have a C4 07 plate 1.8 VTR+ and have a slight judder on clutch when pulling away. Any idea what th[more ...] By Minty111  On Fri May 07 2021, 11:14am
1 2667 vexorg
Sat May 08 2021, 06:02am
Oil Leak from oil pipe leading up into into the turbo. Turbo feed pipe.  Hello. I have an oil leak issue since i bought my car which is Citroen C4 Picasso 1.6 HDI 2010. The [more ...] By yankov  On Fri Apr 23 2021, 04:23pm
2 2879 yankov
Sat Apr 24 2021, 05:58pm
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
Goto page: [ 1 2 ]
15 9562 vexorg
Mon Apr 12 2021, 03:42am
abs cluster light  c4 vts+ 1.6 hdi 2009. Hi, my c4 failed its mot for several reasons. All easy fixes. but this one. It[more ...] By raineuk  On Tue Mar 30 2021, 02:48am
1 2907 vexorg
Tue Mar 30 2021, 04:28am
How do I adjust my headlights on my 2011, Citroen C4 mk2? I'm turning it using the required socket.  Hey,So I've consulted my owners manual and tried online and this forum to find an easy and reliable [more ...] By JibJoe  On Tue Mar 30 2021, 04:27am
None 2779 -
c4 grand picasso polys bag change eolys bag change .  i was wondering if there was anyone out there near Letchworth that can reset my picasso as i have ha[more ...] By lionel399  On Mon Mar 15 2021, 11:01am
None 2901 -
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 2943 -
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 3008 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 3253 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 2926 -
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 2927 -
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 3630 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
None 2952 -
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 3314 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 3471 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 3601 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 3218 -
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 8970 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
None 3275 -
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 3524 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 3352 -
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 3452 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
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