From inside the trunk.
Check out the related link for a DIY article including pictures on how to replace the cabin air filter on your Mercedes Benz.
take it out, buy a new one and put it in
It should be right on top of the engine in the front behind the radiator and fan Its has a black cap that you swrew off and and you just pull out the filter. It's extremely easy to replace
The cost to replace a radiator in a Mercedes Benz C230 will depend on the cost of the labor, parts, and the year of the vehicle. The radiator costs approximately $124.50 for a 2003 model.
The fuel filter is under the car you have to remover the plastic cover under the car to get to the fuel filter.
The 2003 Mercedes-Benz S-Class has a V8 engine.
The 2003 Mercedes-Benz SL-Class has a V8 engine.
The 2003 Mercedes-Benz CL-Class has 24 valves.
The 2003 Mercedes-Benz CL-Class has a V8 engine.
The 2003 Mercedes-Benz G-Class has 24 valves.
The 2003 Mercedes-Benz S-Class has 24 valves.