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December 19, 2024 Service bulletin

Complaint Low engine oil level warning

Mercedes-Benz technical service bulletin LI03.20-P-078715 for 2022-2024 Mercedes-Benz C300, 2024 Mercedes-Benz GLE 350 and 2019-2024 Mercedes-Benz GLS 450 and others.

Bulletin number
LI03.20-P-078715
Component
Engine
Summary
Complaint Low engine oil level warning. Engine oil leak under vehicle. Cause Rear crankshaft radial seal rolled during installation Remedy -Check for external oil leak with visual inspection. -Remove inspection cover on left side of transmission and check for oil in bell housing. -If oil is found in bell housing, remove transmission and determine location of leak. Replace rear crankshaft sealing ring if found damaged or leaking. -If ISA is found to be contaminated with engine oil, replace the integrated starter/alternator.

Owners of these vehicles have filed 95 complaints in the engine category.

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