CLK 430: Gear wont go into reverse or park, stuck between N / Drive
Newer MB's even have a build-in dipstick.
When can you not remove your key?
When the gear is in another position than "P" or "N"? Cause I don't think you are supposed to be able to do that.
Try to see if there is a difference in removing it when in "N" compared to "P" (if you can shift the gear to that position, I am not quite certain if you cannot shift the gear, or if you can, but the gear just doesnt work in those positions).
I find if I can drive away around the block and come back to park it usually will go into reverse and park.
Cheers
Gear Selectors are easy to buy on Ebay. Check partno before ordering.
If your car is like mine, then the key will not remove unless it it is in Park.
it's generally worth checking gearbox oil level anyway, but my first *guess* is there is something not right with the gear selector or the way the gear selector is connected to the gearbox..
Have fun!!





