Okay folks, I need some help. My batteries arrived today but I still need to know how to open the key to install them. I have read the owner's manual, 6 pages worth on this keys various function. NOWHERE, BUT NOWHERE does it tell you how to open this key to replace the battery. Can anyone tell me how to open this key without damaging it?? I do not see any slot,groove or any other place to pry it open. Thanks!!!

There are 4 different MB keys!

ASSuming you mean a "smartkey", you press on a slight indention at the base of the key with a small screwdriver OR with the removalable metal key blade.

And the bottom of the key pops out & there are the batteries.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Here is a picture of the job.

Attached Files

Remove_install batteries for SMART KEY.pdf (65.8 KB, 182 views)

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thanks Doc!! That did the trick and I appreciate the info.