Citroen · B7 · 2010–2018
C4buyer's guide
10 known faults — inspection procedures and real repair costs.
The B7 C4 is a solid compact hatchback with a nasty twin risk at the top: AdBlue/DPF/EGR emissions faults that run $400–$2,200 to fix, and timing belt/chain service gaps that can turn into $500–$4,500 of internal engine damage if the previous owner let the intervals slide. Short-trip diesel driving patterns accelerate the first; missing service stamps hide the second. Both need to be checked before you pay a deposit.
This guide covers ten documented issues: AdBlue/DPF/EGR emissions fault, timing belt/chain service risk, DSG/automatic/clutch judder, coolant leak or water pump fault, infotainment/software electrical faults, suspension knocks and tyre wear, brake corrosion or EPB fault, panoramic roof or boot water leak, turbo boost leak or actuator fault, and recall/campaign status. Each fault has a field check and a real repair-cost range.
A B7 C4 with a complete service record, confirmed timing work, and a clean emissions scan is a practical and affordable used hatchback. This guide gives you the exact checks to verify it before any money changes hands.
By completing your purchase you consent to immediate delivery of this digital product. Once the download begins, your right of withdrawal is waived in accordance with our refund policy.