PeachParts Mercedes-Benz Forum - View Single Post

G-Benz · #4 06-20-2001, 01:58 PM

Regardless of the amount or reason, there isn't a good reason to overfill the crankcase with oil.

Okay, I can think of two:

People who store cars for extended periods (years) sometimes completely fill the engine with oil to keep the idle parts from slowly corroding themselves to each other. Then periodically the engine is spun manually to move the oil throughout the different components.

My Bug, which takes 2 1/2 quarts of oil now takes 5 quarts...but now it is fitted with a deep sump oil pan which holds an additional 2 1/2 quarts.

If your situation doesn't fit these two cases, overfilling is likely to cause unnecessary engine damage in the future.

Again, confront the dealership about their reason for doing this. Then tell them to cease and desist!