YOZHIKVTUMANE

Trying to figure out how to open rear trunk on '01 C240. The tech indicated if I could hear the latch trying to cycle and could open via the key fob or the interiro door unlock, not the key and manual latch handle then I may need to replace the "latch". Looking to confirm and seek alternative non-destructive" method to access trunk.

mleskovar

Well, did you hear the latch trying to cycle? You can't open it from either the rear release handle, key fob, or interior button? You aren't being very clear.

Rev 2 Liv

I had the same problem.

The rear release handle works like "drive by wire" meaning the release handle is not mechanically attached the latch mechanism.

Instead, a servo actuates a steel cable which unlocks the latch. A passive spring is responsible for pulling the latch back into lock position.

On my 2001 W203, the latch mechanism needed to be lubed since the return spring was not able to pull back the lock 100% of the time. I started wit silicon spray grease just to be able to get some penetration into it and then finished it off with petroleum grease. Now my trunk shuts 100% of the time! Even in freezing cold weather!

mleskovar

Again, did you hear the latch cycle when it failed? If you hear it cycle then look at the mechanism. If you don't hear it cycle from the key fob but you do from inside the car and the rear then it's the key fob transmitter or receiver. etc. Just looking for more info.

hineywineries

Is the front trunk working properly?