Hello,

My manual key does not work as user manual describes and FOB with new batteries, synchronized, and all fuses throughout the car checked. I've removed the door lock and no obvious issues. The fob slowly stopped working but light would still light up, replaced batteries anyways and did the sync thing. Can anyone help? please.

 

so your physical key doesn’t unlock the door/s? You have the wrong key or keylock combot then.

 

The key turns the lock CCW 90 degrees but the push lock doesn't rise like it says it would in the manual. What about the fob not working, what would it be? the car is in really good shape, wiring is mint throughout the car.

 

Deleted. Double reply. Actual reply below.

 

So keylock mechanism works but still cannot open door. Correct?

Each door will have a lock actuator inside them. There have been a few threads here explaining how to take out door trim.

There is a rod that connects to that item which you call 'push lock'. The other end of that rod might be connected to the actuator (not 100% sure). I forgot since I have plenty of items to fix with my w164 and x164 as well.

https://mbworld.org/forums/m-class-w...t-working.html

https://mbworld.org/forums/m-class-w...acement-2.html