Hi everyone!

Lately my 96 S500 been somewhat rough at idle (mild shaking) and seems to lack power especially while going uphill. Feels like I've lost a cylinder or two. The plugs are new (not even a month), wires - I am not so sure. Could it be AFM? Where should I look first?

Thanks!

Arthur

Check if the plugcaps are all put on proper.
I had the experience once with a cap not propperly installed on a sparkplug.
Result : loss of power and rough idle.
Look at the simple things thirst ,before you take half the engine apart

succes