Skip to main content

Haynes On Demand sales are currently limited to residents of the United Kingdom only.

Oil change Mercedes-Benz CLS 2005 - 2009 Diesel 320 CDi

OnDemand step-by-step maintenance & repair BETA

Mercedes-Benz CLS 2005 - 2009  | 320 CDi Oil change

  • time 15 minutes
  • difficulty 3
The sump plug is located on the base of the engine. You will need to remove the undertray
Undo the fixings - use an 8mm socket. Carefully remove the undertray. Caution! It is heavy and must be fully supported during removal
Here's the sump plug
Don't forget to place a suitably sized receiving tray beneath
Using a 13mm spanner or socket, carefully remove the sump plug and fully drain the oil. When the sump has emptied, wipe clean the sump plug area with a paper towel and fit a new sump plug and washer. Do not over tighten. Replace the undertray