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Resetting the C4 service indicator?
  9.0 - 8 votes
Change the C4 key fob battery?
  9.8 - 10 votes
Keep those small C4 mirrors clear and useable
  7.3 - 3 votes
Add iPod or MP3 input to my C4 RD4 radio using the Auxiliary Input Cable 9706AG Kit?
  10.0 - 3 votes
Change Headlamp Bulbs in a C4 Coupe or Hatch and what bulb types are used?
  8.8 - 16 votes
Convert My C4 Headlights to Xenon
  8.4 - 9 votes
See if the Rear Parking Sensors are working via the Dashboard Display?
  8.6 - 3 votes
Know what Displays / functions can be enabled via Lexia / Proxia?
  9.0 - 14 votes
Find the fuse box for the lights etc?
  7.5 - 7 votes
Save Tax by driving a C4?
  8.0 - 1 vote
How do I stop the Radio automatically tuning to a different station?
  10.0 - 6 votes
Fit fog lights to a C4?
  10.0 - 1 vote
Access Citroën's Technical Manuals for the C4
  5.8 - 10 votes
Find out why my Diesel has lost power
  6.2 - 4 votes
Find a list of Bulb Types used in the C4 Picasso?
  9.5 - 6 votes
Fit a portable Sat Nav to a Citroën C4 or C4 Picasso
  8.6 - 3 votes
Remove the C4 Centre Console for acess?
  9.2 - 7 votes
Change the front Brake Pads and Disks on a C4
  9.7 - 18 votes
Tell if my C4 front Brake Discs need changing?
  9.1 - 7 votes
Find out if a full sized alloy fits in the rear spare wheel well on a C4 or DS4
  9.4 - 5 votes
Convert UK C4 Headlights for Continental Driving
  9.6 - 6 votes
Find out C4 & C4 Picasso Service Intervals
  8.7 - 9 votes
Find the Telephone Numbers for Citroen Assist.
 
Improve my Fuel Economy
  9.4 - 19 votes
Find out a cars MOT History
  9.0 - 2 votes
Fit the USB BOX 9702.EZ
  9.0 - 12 votes
Depolution system error?
  8.3 - 3 votes
Find out how to configure the Cargo options on a C4 Grand Picasso?
  9.0 - 5 votes
Adjust the windscreen washer jets on a C4?
  9.7 - 11 votes
Remove a Dashboard Air Vent?
  6.5 - 2 votes
Tell which Rear Brake type my C4 uses
  9.1 - 10 votes
Find out how the self leveling suspension works on the C4GP Exclusive
  10.0 - 5 votes
Lock a C4 Grand Picasso leaving the tailgate open?
 
Stop a Puncture Happening?
  7.7 - 4 votes
Check that my car apears on the UK Motor Insurance Database
  9.5 - 2 votes
Tell what engine my C4 - C4Picasso has installed
  8.6 - 25 votes
Find out if the Citroen SOS facility with Navidrive
 
Fit an auxilliary power socket in the boot of a C4?
  7.0 - 1 vote
Fit an Alpine X100 instead of C4 RD4 Head unit
  10.0 - 1 vote
Find out the C4 Front Brake Disc Diameter
  7.0 - 3 votes
Check my none working heated front seats?
  8.3 - 3 votes
Find out the part numbers for C4 Accessories
  7.3 - 15 votes
Find the tyre pressure / paint colour code and what it means etc. for my C4 Coupe or Hatch and C4 Picasso
  9.2 - 16 votes
Format a Cd to play MP3 files in my C4 (MP3 compatible) Headunit and show track info
  10.0 - 2 votes
Get DAB (digital) Reception on a radio in a C4?
  9.6 - 3 votes
Fit Aftermarket Parrot Bluetooth, Parking Sensors and Xenon Headlights to my C4?
  9.6 - 3 votes
Change the rear High Level Stop light on a c4 Hatch / Berline
  9.0 - 3 votes
Colour Code the parking Sensors on my C4
 
Fit aftermarket alloy wheels to a C4 or C4P / C4GP and not have bad vibration as 65mph??
  9.6 - 19 votes
Find what I must have in my car when driving in different European countries
  10.0 - 4 votes
Fix a none working rear screen washer
  9.5 - 4 votes
Parrot Bluetooth and Ipod Support - How to Install in C4 Coupe VTR+
  10.0 - 4 votes
Upgrade the Firware version of the USB BOX 9702.EZ to the latest release v3.03?
  7.3 - 3 votes
Know if I need headlamp beam deflectors for a UK C4 in Europe?
  10.0 - 9 votes
Get an aftermarket Stereo mute control to work when selecting reverse?
 
Have an iRiver H340 paired with RD4 through auxiliary input on a Citroen C4.
  10.0 - 1 vote
Find out when to change the C4 (Cam) Timing Belt?
  9.7 - 29 votes
Find out about using Télépéage (at French Tolls)
  5.0 - 1 vote
Find out the interval and costs for a C4 Particulate filter replacement
  9.0 - 11 votes
Find out if I need Headlamp Beam deflectors for my UK C4 in Europe
 
Find front Bumper Part numbers for a pre facelift C4 hatch/coupe
 
Change a rear light bulb on a Grand C4 Picasso
  9.7 - 11 votes
What format should I use with a USB stick to display info when used with a USB Box
 
Install an Additional 12v Power Sockets for SatNav etc.
  10.0 - 4 votes
Find out what the 'Service operations' 'Service Intervals' and 'Severe' operating conditions are?
  9.5 - 17 votes
Activate my C4GP Parking Assistance function?
 
Find out the OEM TYRE SPECS FOR C4 GRAND PICASSO/PICASSO
  9.5 - 2 votes
Find out the build date of my C4?
  9.3 - 10 votes
Find out what an Insurance catergory A B C D accident Damage means?
 
Find out about the C4 ISOFIX child restraints.
  10.0 - 1 vote
Change the C4 1.6HDi Turbo / Exhaust Heat Shield
  9.9 - 14 votes
Change the REAR light bulbs in a C4 Hatch or Couoe
  7.1 - 8 votes
Stop rattles from inside a C4 Door?
  9.3 - 6 votes
Remove the rear bumper on a C4 Picasso
  8.2 - 4 votes
How can I change the rear Brake Pads and Discs on a Citroen C4
  8.3 - 19 votes
Fit LED bulds to my C4 without them 'glowing' when switched off
  10.0 - 1 vote
Fix a C4 Coolant Circuit Level Too Low - False Warning
  10.0 - 2 votes
Convert BAR to PSI to blow up my tyres?
  10.0 - 1 vote
Find the tyre types / pressures and paint colour codes fo a C4 Picasso / Grand Picasso
  10.0 - 7 votes
How do I find the Air Bag safety Instructions for a C4?
  5.5 - 2 votes
Buy and programme a replacement key Fob (remote Key) for my C4
  9.3 - 19 votes
Fit a 'Blind Spot' mirror to my C4?
  8.0 - 1 vote
Find out about my C4 Paintwork and Corrosion Warranty
 
Find out the brake fluid Specification for my C4
  10.0 - 2 votes
Convert my C4 Speedometer from KPH to MPH?
  10.0 - 5 votes
C4 Bluetooth default Passcode?
  10.0 - 1 vote
Open the glovebox if the handle has snapped?
  9.6 - 3 votes
Run a cable to power a subwoofer through the bulkhead in a C4GP
  8.0 - 5 votes
I have an oil leak on a C4 1.6HDi
  10.0 - 8 votes
CREATE AN MP3 CD WITH iTUNES FROM AAC files.
 
Find out what the colour of smoke from my Diesel (HDi) exhaust means
  8.1 - 9 votes
Fault Find on my Diesel (HDi) C4 engine
  9.2 - 4 votes
Update the maps om My Way / Wip Nav systems
  6.0 - 1 vote
Lock my C4 Doors without setting the alarm?
  9.6 - 3 votes
Repair a damaged leather seat in my car
  10.0 - 4 votes
Upstream oxygen sensor
 
Engine management ECU - magneti marelli 6lpb fuel injection
  6.7 - 4 votes
Free a C4 Coupe passenger seat back which has jammed.
  8.0 - 2 votes
Change a starter motor on a C4?
  7.6 - 3 votes
Fix a broken C4 Coupe or Hatch broken glove box handle
  9.4 - 11 votes
Find and fit a Cold Weather / Winter Grille Screen to your C4 to improve MPG
  9.4 - 52 votes
Find a spare 12v permanent live in a C4 Fusebox?
  10.0 - 9 votes
Find all the Grand C4 Picasso ( C4GP ) Cargo area options
  10.0 - 4 votes
Have the tailgate open but the doors locked on a C4GP Exclusive with split tailgate
  8.0 - 1 vote
Fitting a new C4 driver's seat back cushion. There's an air bag in the way!!
  8.0 - 1 vote
Remove the rear wiper on a C4 Coupe
  8.0 - 5 votes
Change the C4 dashboard panel colour and bulbs
  10.0 - 2 votes
Find out why Brakes are free at the start of a journey, but gradually bind or lock on as you drive
  10.0 - 1 vote
Fix a Disc Judder problem - Cause/rectification.
  9.0 - 1 vote
Can I Fit an after market Head Unit to a C4 and what do I need?
  8.9 - 31 votes
Pair a Mobile Phone with C4 Bluetooth
  7.5 - 2 votes
Change the speedometer on a C4
 
Change a C4 Coupe or Hatch Air Filter?
  8.6 - 5 votes
C4 Brake Switch causing ESP/ABS fault or Speed limit error message, Switch replacement guide.
  9.7 - 48 votes
Replace a C4 Door Mirror Glass
  7.2 - 12 votes
Find out why a C4 2.0 HDi is surging at low engine revs and low speed or Kangarooing
  10.0 - 2 votes
C4 HDi Common Rail Pressure Sensor, where is it
  9.7 - 4 votes
Retro Fit Front Parking Sensors to a C4GP or other C4
  8.2 - 5 votes
Can I fit a spare wheel and carrier to a C4 Grand Picasso - C4GP
  9.2 - 25 votes
Cure a C4 EGS of 'Juddering' when pulling away
  9.5 - 7 votes
Jump start to or from a C4?
  10.0 - 1 vote
Manually Adjust the height of my C4 or DS4 headlamps Halogen or Xenon Discharge
  9.5 - 4 votes
Cover my C4 rear spoiler in 'Carbon Fibre'
  7.5 - 2 votes
Change the 'clutch pedal switch' on a C4
  10.0 - 1 vote
Find the location of the C4 Picasso Pollen Filters
  7.2 - 4 votes
How do I remove the front bumper of a Coupe or Hatch
  1.0 - 1 vote
C4-II Change from Fahrenheit to Centigrade on temperature on dial
  10.0 - 1 vote
Change the headlamp bulb in a 2007 - 2013 C4 Picasso
  10.0 - 3 votes
Fit a full size spare wheel into a New (B7) C4 or DS4 - electric parking brake
  10.0 - 5 votes
Change the Headlight Bulbs in my C4 Picasso B78 to LED?
  9.6 - 5 votes