Date registered: Mar 2010
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C200k coupe battery replacement question
I have a 2003 C200 K coupe, UK version.
The battery is getting tired and on cold starts the voltage goes so low (9v) it triggers the light sensor and sometimes the srs fault indicators.
Clearly I need a new battery but am concerned that if I disconnect the old one I may cause problems. Is it necessary to use a 'piggy back' power source or connect another battery before removing the old one, or can I just disconnect, swap then connect the new one. I do not think the radio has a code, but am concerned it may trigger other sensors into misbehaving!
Any one done this?