Get a decent tuner to delete the present
fault codes in the engine ecu, I say decent tuner because there are many ways to delete
fault codes in the firmware file and you don't want to end up with the ecu not
reporting any
fault at all as damage may occur if you don't know about them and diagnosing
faults would be a nightmare.
If you receive customer
reports of Mercedes - Benz vehicles equipped with the 722.9 (7G - Tronic) transmission being in limp home mode (intermittently or permanently) with
fault code (s) 0741, 0893, 0894, 2502, 2504, 2505, 2511, 2711, 2783 stored in the transmission control module as well as particulate in the transmission oil pan (see photo), the cause may be related to the torque converter lock - up clutch or the rear planetary gear set.