Air filter change Mercedes-Benz CLS 2005 - 2009 | Haynes Manuals
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The air filter is beneath the engine cover
Pop off the engine cover to gain access to the air filter housing
Now undo the two 10mm retaining bolts on the air filter body
Remove the oil filler cap
Next, remove the oil filler collar
Next, undo the circular clip on the air intake duct
Now, separate the air duct from the air filter body
Undo the four, torx-25 fixtures on the air filter body
Now reposition the air filter body
Next, carefully separate the air filter body
View of the air filter cover - clean off any dust or debris
Air filter in position
Now lift out the air filter
Clean off any debris on the surface of the filter. Replace with a new filter if heavily contaminated
Check air filter chamber for debris. Clean out if required. Now you are ready to replace the air filter
Reassemble the air filter housing and the disconnected parts. Replace the engine cover