Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Check for Coolant Leaks

Model: Mercedes Classe M W163 - Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Part: Antifreeze coolant

See other generations:
Video tutorial

If the coolant level warning light on the dashboard illuminates, check the level in the respective reservoir. Once you open the front bonnet, the coolant reservoir is located at the back of the engine bay, just below the windscreen.

If the level is significantly below the minimum but the temperature value has remained constant, then there is certainly a leak. In this case, the leak is located at the reservoir, at the connection of the outlet hose.

Once the reservoir is removed and thoroughly dried, repair the connection area with two-component resin and proceed with the installation, restoring the coolant level and monitoring it.


Updated on 10 February 2026 by ScegliAuto


Related tutorials

How to Work on the Heat Exchanger in a Mercedes ML
How to Work on the Heat Exchanger in a Mercedes ML
Mercedes Classe M (2005-2011 / W164) Below is a general description of the steps involved in replacing the heat exchanger, but keep in mind this is only an overview and details may vary …
How to Replace the Coolant on the Mercedes Benz ML320 W163
How to Replace the Coolant on the Mercedes Benz ML320 W163
Mercedes Classe M (1997-2005 / W163) The video describes how to replace the coolant on the Mercedes Benz ML320 W163. The first step is to drain the radiator of the coolant; from the fron…
Instructions for Replacing Antifreeze
Instructions for Replacing Antifreeze
Mercedes Classe M (1997-2005 / W163) To ensure that the coolant is always efficient, it is advisable to replace it, perhaps during regular maintenance: this way, you will prevent rust fo…

How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

Watch the video!


by ScegliAuto

More videos