Balancer is on the front of the crankshaft in the center of the engine.
It is the main belt pulley.

Symptoms include a very shakey idle and very loud noises as it is
hogging a hole through the front timing cover.

DR.D

__________________
Dr.Diesel -
Shop Foreman
Master Guild Mercedes-Benz Technician.

Think the dealer is expensive? Do you know how much it costs to train a dealer tech? Or buy the required MB special tools to have on hand?