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R129 Positive Terminal Location?

R129ASD

New Member
Joined
Jun 22, 2023
Messages
3
Location
Uk
Car
Mercedes SL280 R129
I own a 2000’ SL280, and the battery is flat. I can’t get into the boot to charge it. Does anyone know where the positive terminal is in the engine bay?
 
I own a 2000’ SL280, and the battery is flat. I can’t get into the boot to charge it. Does anyone know where the positive terminal is in the engine bay?

I don't think there is one, at least on my '97. Have you checked your handbook? For jump starting mine says to connect the two batteries directly (terminal to terminal).

Can you not unlock the boot with the key blade?
 
I don't think there is one, at least on my '97. Have you checked your handbook? For jump starting mine says to connect the two batteries directly (terminal to terminal).

Can you not unlock the boot with the key blade?
Can’t get into the boot as the lock is damaged. I will try other methods. Thanks
 
You could possibly feed 12V direct to the fusebox if you were very brave & very careful.

As an aside the R129 doesn't like having a flat battery ... fingers crossed you will be OK but in the past this caused spurious fault codes on mine that stopped the roof & rollbar from working ... these survived disconnecting the battery (last resort) and had to be cleared via STAR in the end. I've kept it on a maintenance charger ever since.

Good luck!
 
You could possibly feed 12V direct to the fusebox if you were very brave & very careful.

As an aside the R129 doesn't like having a flat battery ... fingers crossed you will be OK but in the past this caused spurious fault codes on mine that stopped the roof & rollbar from working ... these survived disconnecting the battery (last resort) and had to be cleared via STAR in the end. I've kept it on a maintenance charger ever since.

Good luck!
Ok thanks for the help mate.
 

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