I have an 2000 S500
My battery has died due the cold weather. All the electrics are down.
I cannot open the trunk to access it.
I can open the hood.
Is there some where to apply electrical power to operate the trunk latch so that I can gain access to the battery??

Thanks

Marty

 

In simple terms you have to apply power to somewhere along the main power busbar / wire (RED) which runs from rear to front of the car. (w220?)
I believe you can gain acess to such a terminal in the passenger footwell under the toeboard carpet
after entering the car using the mechanical key.
I guess you could also use the terminal on the starter motor but this will be difficult to access.
If it is a w140 I'm sure it will be the same but am not familiar where the battery is. i.e. Engine bay or boot.
Hope this helps.
Regards,
Stuart.

 

just use the mechanical key.

 

Yep - same thing happened to me this week.

Just stick the mechanical key in the trunk lock; turn key 90 degrees and push on the key. It should pop right open.

- Craig

 

The mechanical key is in Vegas
But... I attached a small charger to hot lead of the starter and after 20 minutes I had the battery up enough to get the trunk open.
Anyway she is charged and working fine.

Thanks for the help gentlemen

Semper Fi