top cover on 1999 Mercedes-Benz CLK430

This sounds dumb but how do you remove the top cover on the engine to access the air filters? Also check engine light just came on yesterday my clk is a 1999 just turned 20k miles rarely driven.

2 answers
Go to auto zone and buy your filters and they will show you how its done
There 4 big clips kind of in a square pattern and 1 small clip in front of the star. Pull it up gently with slight force, use a flashlight and you can see the clip. As for your CEL get the diagnostic code.