Diagnosing Mercedes-Benz 4Matic Transmissions
Tomorrow's Technician
JUNE 6, 2025
On later cars and GL-Class SUVs, the transfer case splits power to the front and rear using helical-cut gears on the output shaft. In 2012, for the C-Class and some AMG models, Mercedes-Benz took a different direction with 4MATIC. If the fluid is not serviced every 40,000 miles, the chain can wear and stretch.
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