Transmission Oil Seals May Leak on High Mileage Vehicles on Mercedes-Benz E320 4MATIC

High mileage vehicles may develop a leak from one or more of the transmission oil seals.

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Average mileage: 122,344 (111,689–133,000)
6 model years affected: 1998, 1999, 2000, 2001, more2002, 2003
7 people reported this problem
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problem details
Mysterious leak not from 13 pin connector and not from torque converter seal but fluid comes from the front of transmission and I can't figure out where?
Transmission fluid leaks when at highway speed for >5min. Get some blueish smoke from it burning. Possible overfill of transmission fluid? The car is new to me.