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New Forum Posts
C4 Grand Picasso 2016 Electric boot strut. [ views: 6303, replies: 3, lastpost: Nickbrown123 on: 22 Apr 2026 : 09:40 ]
Which spark plug brand were originally fitted to C4s from factory? [ views: 12627, replies: 3, lastpost: Nickbrown123 on: 22 Apr 2026 : 09:39 ]
Require replacement power steering pump [ views: 54 ]
2022 Spacetourer Central Locking [ views: 189, replies: 1, lastpost: Nickbrown123 on: 12 Apr 2026 : 13:13 ]
keyless key fob not working [ views: 229, replies: 2, lastpost: Nickbrown123 on: 10 Apr 2026 : 17:57 ]
C4 1.4 hard to start and keep going [ views: 391, replies: 7, lastpost: Ap0qalypto on: 10 Apr 2026 : 15:32 ]
Replacing License Plate Light Fitting (not bulb) - 65 plate CITROЁN C4 II Grand Picasso 1.6 BlueHDi [ views: 202, replies: 2, lastpost: Nickbrown123 on: 10 Apr 2026 : 13:19 ]
Parking-assist and blind spot detection failure [ views: 332, replies: 4, lastpost: Nickbrown123 on: 10 Apr 2026 : 13:09 ]
Running amp wire from bonnet to dash, European Citroen C4 I Hatchback (Phase I, 2004) 2.0 HDi 16V [ views: 265, replies: 3, lastpost: Nickbrown123 on: 10 Apr 2026 : 13:02 ]
Can anyone recommend someone in NW Surrey to change a timing belt? [ views: 315, replies: 4, lastpost: Nickbrown123 on: 10 Apr 2026 : 12:56 ]
RT4 unit is stuck on a "upgrade CD request" after faulty upgrade [ views: 288, replies: 1, lastpost: Ap0qalypto on: 29 Mar 2026 : 18:55 ]
UREA light on - but no fault codes [ views: 294, replies: 7, lastpost: Duck999 on: 08 Mar 2026 : 21:57 ]
How do I check continuity of ABS sensor wire? [ views: 2834, replies: 4, lastpost: Ap0qalypto on: 03 Mar 2026 : 09:52 ]
EGS Actuator hose connector [ views: 3185, replies: 2, lastpost: salliborm12 on: 02 Mar 2026 : 22:23 ]
Original Bluetooth Mic [ views: 113 ]
Sometimes no sound from rear parking sensors [ views: 1199, replies: 2, lastpost: Fish123 on: 25 Feb 2026 : 21:36 ]
Citroen Grand C4 Picasso 2014 (New Zealand) [ views: 146 ]
Push fit catch on fuel flap - won't close [ views: 172 ]
C4 2009 Hatch Speedo lcd screen [ views: 306, replies: 3, lastpost: routemaster1 on: 16 Jan 2026 : 11:19 ]
Replacement Start/Stop battery [ views: 301, replies: 2, lastpost: northspoon on: 13 Jan 2026 : 15:02 ]
Another dealer closes [ views: 182 ]
2020 C4 Puretech 1.2 Petrol Engine Timing Belt Replacement [ views: 344 ]
Oil everywhere [ views: 597 ]
Intermittent remote locking [ views: 9088, replies: 1, lastpost: salliborm12 on: 29 Nov 2025 : 19:03 ]
Fitting a custom air filter/induction system to a 1.6 HDI... [ views: 8832, replies: 1, lastpost: salliborm12 on: 29 Nov 2025 : 19:02 ]
Doors constantly locking and unlocking by themselves [ views: 199 ]
C4 1.6 petrol cutout, would not restart. [ views: 1276, replies: 1, lastpost: Ap0qalypto on: 21 Nov 2025 : 10:56 ]
Spare wheel well full of water [ views: 1923, replies: 5, lastpost: organza_prestos on: 19 Nov 2025 : 20:05 ]
Oil filter housing cap thingy snapped , ew10a 2l engine petrol [ views: 1331, replies: 2, lastpost: MarkTee on: 15 Nov 2025 : 19:05 ]
C4 THP - Error code FC83 and F4BA [ views: 5581, replies: 1, lastpost: Farmerguy on: 15 Nov 2025 : 13:42 ]
2005 VTR+ Starting Problem [ views: 4812, replies: 3, lastpost: Ap0qalypto on: 15 Nov 2025 : 06:19 ]
Engine hesitates or pulsates at low rpm/idle [ views: 1398, replies: 1, lastpost: Nickbrown123 on: 15 Nov 2025 : 03:10 ]
Where is the clutch switch located? [ views: 15639, replies: 12, lastpost: Nickbrown123 on: 15 Nov 2025 : 03:07 ]
C4GP 2.0 HDI coolant leak - help identifying pipe [ views: 897, replies: 2, lastpost: Ap0qalypto on: 11 Nov 2025 : 06:22 ]
08 2.0HDi grand Picasso - can a faulty speed sensor cause the engine to cut out while driving? [ views: 2419, replies: 3, lastpost: Farmerguy on: 02 Nov 2025 : 08:43 ]
C4GP 2009 - EGS6 directed manual box, error P0991 fluid pressure sensor [ views: 787, replies: 1, lastpost: Ap0qalypto on: 01 Nov 2025 : 18:32 ]
Fuel Filler Cap Error [ views: 816 ]
2008 C4 Picasso Charge circuit fault [ views: 812 ]
Alternator not charging, smart or dumb alternator? [ views: 947, replies: 3, lastpost: joopajaa on: 24 Oct 2025 : 14:13 ]
3rd brake light not working [ views: 1668, replies: 2, lastpost: organza_prestos on: 24 Oct 2025 : 11:17 ]
C4 By Loeb Members Register [ views: 9011, replies: 2, lastpost: salliborm12 on: 19 Oct 2025 : 23:00 ]
Heater Blower randomly on full blast / no control [ views: 1312, replies: 3, lastpost: MadGutts on: 13 Oct 2025 : 20:14 ]
Cooling fan? [ views: 300 ]
Speakers not working, and "distant" sound [ views: 5959, replies: 6, lastpost: Nickbrown123 on: 13 Oct 2025 : 09:28 ]
the nfu engine does not start [ views: 5046, replies: 4, lastpost: Nickbrown123 on: 13 Oct 2025 : 09:27 ]
Interior fans turn on randomly at start [ views: 1801, replies: 2, lastpost: Nickbrown123 on: 13 Oct 2025 : 09:03 ]
2008 C4 Picasso Intermittant fan issues [ views: 944 ]
Re: Esp/asr fault on project c4 picasso mk1 2013 [ views: 1563, replies: 1, lastpost: vincentfishing on: 27 Sep 2025 : 19:03 ]
1.6 16v lacking power struggling to rev [ views: 1597 ]
2014 Grand Picasso Semi Auto selector switch issue solved [ views: 539, replies: 2, lastpost: Sorcerer on: 11 Sep 2025 : 15:56 ]
Only one drl working [ views: 402 ]
Jacking Point I use on Rear of my C4 [ views: 1241 ]
Battery remote control Failure [ views: 4830, replies: 3, lastpost: BigJohnD on: 01 Sep 2025 : 12:25 ]
Expensive adblue tank repair [ views: 15484, replies: 6, lastpost: sfreeman12 on: 01 Sep 2025 : 11:12 ]
Help on Shunt Fuse usage (Need to park the car for long time) [ views: 26289, replies: 7, lastpost: Deckard on: 28 Aug 2025 : 07:26 ]
Constant knocking from front passenger side [ views: 3546, replies: 10, lastpost: JamieP on: 25 Aug 2025 : 20:45 ]
Grand Picasso 2.0 Hdi - How to remove hose from thermostat [ views: 437 ]
Rough guide to upgrading Instrument cluster from SMEG to NAC compatible (PRE 2016 to POST 2016) [ views: 14656, replies: 28, lastpost: kopyt on: 22 Aug 2025 : 06:42 ]
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New Downloads
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Used for the last 4 years, Good Main Dealer. by: skorpion in: Perrys Huddersfield
No longer Citroen dealers. Fiat Jeep. Ford. by: skorpion in: Clemo Citroen
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New Comments
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Latest Facts
C4 red 'STOP' light and warning beep + the computer says 'Engine temperature too high' by: Dave_Retired. in: Known issues
Reset a C4 Cruise control with a service lamp and "Speed Control System Faulty" error message by: Dave_Retired. in: Known issues
C4 speedo keeps flickering, with general beeps etc when turning the engine on by: Dave_Retired. in: Known issues
Change the C4 key fob battery? by: Dave_Retired. in: How Can I?
Keep those small C4 mirrors clear and useable by: Dave_Retired. in: How Can I?
Change Headlamp Bulbs in a C4 Coupe or Hatch and what bulb types are used? by: Dave_Retired. in: How Can I?
C4 Alarm goes off when parked in High Winds? by: Dave_Retired. in: Known issues
Checking your Tyres by: Dave_Retired. in: Maintenance Tips
What do Tyre Speed Ratings and sidewall lettering mean? by: Dave_Retired. in: Maintenance Tips
Resetting the C4 service indicator? by: Dave_Retired. in: How Can I?
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Carmen the C4 (My C4 Project) by: AllEuan in: Premier Members
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