C4 - Technical

1,112 topics in this forum

1. How To... Fit New Headlamp Bulbs

   By Mike5483, September 2, 2006
   • 19 replies
   • 35k views
   • 
   • arak81
   • January 14, 2016

3. How To... Fit A Xenon Conversion Kit

   By Welshguy, December 11, 2006
   • 18 replies
   • 14k views
   • 
   • Johndouglas
   • June 20, 2014

4. Common Problems (Rev 16/4/2018)

   By paul.h, May 15, 2013
   • 0 replies
   • 10.6k views
   • 
   • paul.h
   • May 15, 2013

5. New C4 Rear Brake Pad Clean Or Replacement

   By paul.h, May 18, 2014
   • 0 replies
   • 7.6k views
   • 
   • paul.h
   • May 18, 2014

6. New C4 Front Brake Pad Clean Or Replacement

   By paul.h, May 16, 2014
   • 0 replies
   • 2.8k views
   • 
   • paul.h
   • May 16, 2014

7. Diagnostic Socket Location - 2010 On C4

   By paul.h, May 2, 2014
   • 0 replies
   • 2.5k views
   • 
   • paul.h
   • May 2, 2014

8. How To Replace Key Fob Case?

   By arak81, May 11, 2016
   • 3 replies
   • 2.1k views
   • 
   • arak81
   • May 16, 2016

9. C4 Lack Of Power - Battery Fuse Box Fault

   By paul.h, April 27, 2017
   • 3 replies
   • 1.8k views
   • 
   • Rookie2
   • April 29, 2017

10. 2014 C4 1.6 Ehdi Selection Alternator - Tensioner Recall

    By sleepy0905, October 27, 2016
    • 2 replies
    • 1.5k views
    • 
    • paul.h
    • April 16, 2018

11. Depollution System Faulty

    By skaramanga, November 8, 2006
    • 12 replies
    • 124.5k views
    • 
    • Guest
    • April 12, 2011

12. Anti Pollution Fault

    By BrentC4, December 16, 2007
    • 12 replies
    • 55.8k views
    • 
    • Guest
    • May 2, 2008

13. Ecu Reset Procedure

    By Guest Citroen CT, May 24, 2009
    • 7 replies
    • 40.4k views
    • 
    • coastline taxis
    • March 3, 2015

14. Where Is The C4 Bonnet Release?

    By wainy, June 10, 2007
    • 9 replies
    • 29.7k views
    • 
    • paul.h
    • January 29, 2017

15. Drivers Footwell Flooded!

    By Foxeye, September 4, 2008
    • 16 replies
    • 25.8k views
    • 
    • c4owner
    • October 29, 2009

16. Ipod's 1 2

    By philstott1983, December 29, 2006
    • 32 replies
    • 23.6k views
    • 
    • wozza
    • January 14, 2008

17. Changing The Time

    By powza, October 29, 2006
    • 20 replies
    • 23k views
    • 
    • Stuey
    • November 1, 2006

18. Starting Problems

    By paul k, March 17, 2013
    • 4 replies
    • 21.1k views
    • 
    • Guest
    • April 21, 2013

19. Key / Anti Theft Trouble

    By moggy, April 13, 2007
    • 9 replies
    • 18.9k views
    • 
    • xavtia
    • April 14, 2007

20. Abs Eps Warning Light Coming On

    By kjn, January 7, 2007
    • 6 replies
    • 18.1k views
    • 
    • paul.h
    • July 30, 2016

21. C4 Cruise Control Failure 1 2

    By hertsnminds, December 20, 2005
    • 31 replies
    • 17.8k views
    • 
    • Rob555
    • September 16, 2006

22. Windscreen Wipers Not Working

    By Lin, September 22, 2008
    • 3 replies
    • 14.1k views
    • 
    • Lin
    • September 22, 2008

23. Air Bag/pretensioner System Fault

    By Mike5483, June 22, 2007
    • 12 replies
    • 14k views
    • 
    • flat2themat
    • June 27, 2007

24. Stereo Upgrade (after Jbl Upgrade) 1 2 3

    By idlerobbo, January 8, 2007
    • 64 replies
    • 13.7k views
    • 
    • Guest
    • July 5, 2007

25. Activating Aux2

    By barnyg, May 25, 2006
    • 15 replies
    • 13.6k views
    • 
    • barnyg
    • May 27, 2006

26. Car Won't Start

    By Mrnhm, November 16, 2013
    • 2 replies
    • 13.5k views
    • 
    • paul.h
    • November 16, 2013