Citroën C4 Picasso B78 Door Lock
New, used, or aftermarket – from sellers across Europe.
Parts availability
This part appears to be widely available.
Estimated price range
Widely available Limited Hard to find
Last updated: 31.05.2026, 07:38
Door Lock for your Citroën C4 Picasso?
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About this part
Door locks on your C4 Picasso B78 secure your vehicle via the central locking system, key fob and immobiliser. A faulty lock that won't engage or release properly compromises your vehicle's security.
Frequently asked questions
What should I check when ordering a replacement door lock for the Citroën C4 Picasso?
Confirm the door position (front/rear, left/right) on your C4 Picasso B78 and whether you need just the lock actuator or the complete lock assembly including the cylinder.
Can I replace just the lock actuator?
On most vehicles yes – the actuator motor can be replaced without changing the entire lock. This is often the more affordable fix when the mechanical lock still works.
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