The oil filter will be the same for all 112 engines.

The dust filter is located on top of the right lower dash panel. You have to pull down the panel and there is a door in there.

Good luck.

(We have all of the needed parts in the fastlane, but I'm sure you are aware of that)

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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS