Complaints / Requests:
– Check engine light is on.
– Engine is cranking slowly.
– Vehicle is due for service.
Diagnosis / Work done:
– Performed diagnostic test.
– Found code P0521, P2004 for intake manifold flaps sticking.
– Tested and replaced intake manifold and gaskets.
– Tested charging system and battery.Replaced battery.
– Performed mercedes scheduled service “B”.