Can anyone tell me why the central locking pops open on my C180K Avantgarde SE Auto (first registered in the UK in May 2004). It does it when I go around a right hand bend or roundabout. I had the same problem on the C180K demonstrator I drove for a week before I bought this one and my previous car which was a Apr 2002 C220 CDi. Why does it do this and what is the cure?

 

can it be the crash sensor being activated? it is very sensitive to bumps and as a safety feature, it will unlock all doors during accident. you got modified hard shock absorbers?
crash sensor is located inside the central locking pump as a unit.

tip: if you have left your key inside and the engine is running, slam the rear right seat area with a shocking blow. this will unlock the door.

 

good tip sleepwalker, I'll keep that in mind.