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Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

Vehicles with manual transmission
•► Shift to either first gear or reverse gear R.•► Turn the SmartKey to position 0 in the ignition lock and remove it. The immobilizer is activated.•► Apply the parking brake f ...