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