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Instructions for Draining Coolant

Model: Mercedes Classe M W163 - Years 1997-2005
Part: Antifreeze coolant

If you need to drain the engine cooling system, it is advisable to perform this operation with the engine cold to avoid unpleasant burns; the drain plug is located just below the radiator, on the left side when viewed from the front, near the towing hook, and can be accessed with pliers through a gap in the radiator; position a container (or a bucket, as there are several litres in the system) to collect the fluid, unscrew the plug, and also remove the container's plug to allow air in and facilitate the drainage of the fluid.

Updated on 17 February 2026 by ScegliAuto

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