Changing oil on a 1991 560SEL, does anyone know the factory specs for torquing the oil drain plug? Thanks!

Don't recall at the moment, but it's relatively light under the assumption that a new copper crush washer is used.

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Earl McLain
'02 C230 Kompressor
'89 560 SEL "Frau BlueCar" (retired April 2004)

I installed the new copper washer and torqued to 45nm. If anyone knows different, please post.

50 Nm or 37 lb/ft

Thanks!

HuskyMan, the torque value Rocky Raccoon states seems too high to me.

The torque value for a M104 (6-cylinder) engine oil drain plug is 25 Nm or 18 ft/lbs. Not sure why the oil drain plug torque value for an 8-cylinder engine would be twice that.

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Fred Hoelzle

based on Ferdman's post, I checked the EPC with the following results.

My 117 application is a 560SL and the 50Nm value is correct for my M26 drain plug. Your 560SEL application, even though basically the same 117 engine uses an M12 drain plug and the correct torque is 40Nm.