W219 Engine bay negative/ground?

[moodi]

Hi all,

What is the easiest way to tap into a negative point in the engine bay on a CLS? Is there an obvious position in the engine fuse box?

(Disclaimer - I haven't looked yet!)

 

[bob6600]

Have a look, there must be a few obvious ones The jump start point would be the most obvious.

Negative = earth = chassis/ground

 

[moodi]

Thanks! I'll rephrase - anyone know a definitive point on the front SAM?