You should have asked the question first. There are few pleasant shortcuts to removing the engine to replace the oil pump. With the engine out or at least clear of the crossmember, remove the oil pan, unbolt the oil pump from its attachments and the drive sprocket, replace.



It would be nice to replace the oil pump chain and tensioner but that requires removing the front cover. Consider a new main timing chain tensioner guide rail if you go that far.

Sixto
98 E320s sedan and wagon