Date registered: Jan 2009
Vehicle: 2002 CLK320; 2006 CLK350 Cabriolet; 2011 E350 Cab; 2014 E550 Cab
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
The battery of my '06 CLK died one night after I had inadvertently left the lights on. The battery is in the trunk, which locked itself just before the battery died, and my blade key, for whatever reason, wouldn't open the trunk. However, in the engine compartment is a booster post, which I found, and after attaching a jumper cable positive lead to it (and the negative lead to ground), I was able to press the trunk release button, and the trunk opened. Then I put a charger on the battery and in a few hours all was well. Perhaps your car has the same capability.