Auxiliary battery?

megliam

Member
Joined
Jul 5, 2015
Messages
17
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Location
Aberdeen, Scotland
Your Mercedes
sl350 r230 3.7
Hi folksI have a 2010 ML300 sport facelift.. started having electrical gremlins today.. Sat nav screen started turning red then eventually went like a cream colour..radio etc still has sound.. cd changer would not eject discs and has jammed.. bonnet open warning light coming on although bonnet securely closed. And the alarm keeps going off when I lock it.. Are these symptoms of a bad aux battery?? Will my model of car have an aux battery? Thanks for any assistance or advice.
 

mioba

Senior Member
Joined
Feb 19, 2006
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Location
Nottingham and Köln
Your Mercedes
W124/E200, W220/S320CDI, W205/C200, W251/R350CDI 4Matic
Sound more like water in the electrics. Too much randomness otherwise
 

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