Mercedes Benz ML350 from BURTONSVILLE, MD 20866

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Complaints /Requests:

> Check engine light is on.
> Engine is noisy.
> Inspect vehicle for needed maintenance  services

Diagnosis / Work done:

> Performed diagnostic test..found codes P0301,P0303,P0305..tested and replaced all ignition coils and programmed engine control unit with new software..cleared codes after repair.
> Inspect and replaced serpentine belt tensioner and both idler pulleys.
> Tested  and replaced front brake rotors,pads and sensor.
> Serviced transmission with filter,pan gasket and screws..adjusted fluid level after repair.
> Replaced transfer case fluid.
> Performed engine oil and filter change..replaced oil filler cap.