SL/R230: need to know
Member
Joined: Apr 2009
Posts: 124
Likes: 22
2004 sl600
This looks like you are disconnecting the negative terminal of the battery whenever you flip up that lever to “isolate the ground”. This is not what I am used to seeing for isolated grounds. I thought I was reading that r230 doesn’t like when battery is disconnected/goes dead.
Super Member
Joined: Sep 2018
Posts: 746
Likes: 185
From: Melbourne, Australia
2005 SL 500 R230
You can easily and safely disconnect the rear battery on the 230. All you have to do upon reconnection is reset the windows by holding the switches up, and possibly the ESP, by turning the wheel from lock to lock.
In fact it's the one sure way to eliminate battery discharge if the car's not being used, and you don't want to connect a charger.
In fact it's the one sure way to eliminate battery discharge if the car's not being used, and you don't want to connect a charger.
