Mercedes Benz ML350 Service and Repair From Gaithersburg, MD.

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Complains/ Request:
Install pioneer NEX 6000 radio, phone and video cable.
High pitch noise from engine.
Steering has a vibration when idle.

Diagnosis/ Work done:
Installed customer supplied radio, phone cable and video cable.
Tested and replaced A/C compressor and drier. Recharged A/C system and performance tested. Normal operation at this time.
Tested and replaced engine mounts and transmission mount.