Lifetime Premium Member
Date registered: Aug 2006
Vehicle: 02 ML320 06 ML500
Location: Bronx, New York
Mentioned: 17 Post(s)
Quoted: 925 Post(s)
It's still amazing how a rudimentary task like jumpstarting a battery has to be discussed.There is no special way of jumpstarting an ML as opposed to any other vehicle. None whatsoever. There are so special components in an ML that millions of other vehicles do not have.
Most, if not all, problems arise from not correctly hooking up the cables. Positive to positive and negative to negative. Some accidently reverse them, others don't think it matters, but most of these errors happen at night. Once that happens the cash register starts warming up and sounds its' familiar tone. Batteries can explode and computers and modules start to burn up. Why because when you reverse polarity, everything that should be getting positive is now getting negative and vice versa. When a battery is half dead an accidental reversing can be caught in time because of the apparent high sparking involved. But not on a fully dead one. When the cables are reversed there is no forewarning and that's when electronics start to cook and wiring starts to melt.
Electronic keys go bad for a reason and probably the biggest one is error in jumpstarting. Removing one's key from the ignition, when jumpstarting, is always a good idea with any vehicle. Doing so will minimize battery drain but most importantly it will protect at least the key from damage in the case of a reversing error.