Questions & Answers for: Mercedes-Benz E-Class unlock function key

...unlock function I just bought a used '06 E350 and the smart key will not lock/unlock doors; however the trunk function opens? Doesn't sound like the batterys flat in the remote Probably have to go to ...

how come that I must push the key button twice to open all doors on my E210? One push unlocks the drivers door. SAFTY LOCK FUNCTION,

...unlock will work. This is the most used function and the one that goes first. Hello,, my first question is did you change any window motor or .. And is this problem appears after you replace some ...

...key fob apart, and check the little buttons on the PCB / board itself for function. Sometimes they get stuck with dirt / grime to the point where the button itself under the plastic shell is not ...