Why does my E-Class leak transmission fluid after a recent ATF change at a local workshop in Pakistan?

Home > Gari Forums > Mercedes Benz Forums > Mercedes Benz E Class Forums > Mercedes Benz E Class Transmission Fluid Leaks Forums

Post a New Topic

Why does my E-Class leak transmission fluid after a recent ATF change at a local workshop in Pakistan?

After changing the automatic transmission fluid ATF at a local mechanic in Pakistan, some E-Class drivers notice fluid leaks within a few days. Is this due to incorrect installation of the oil pan gasket, overfilling, o r use of non-genuine parts? Are most local workshops in Pakistan familiar with the correct torque specs and procedures for Mercedes transmission servicing?

Talha Kyanii asked on 11 Oct 2025 12:57:16 pm

1 Answer

10 views |

Gari Master - on 11 Oct 2025 12:59:55 pm

This is a very common issue due to lack of Mercedes-specific training in many Pakistani workshops. After a transmission fluid change, leaks may happen due to:

Incorrect installation of the oil pan gasket – especially if it’s over-tightened o r misaligned.

Using cheap o r universal gaskets that don’t seal properly.

Overfilling o r underfilling the transmission, which causes overflow o r pressure buildup.

Not replacing the transmission drain plug washer o r O-ring.

Mercedes transmissions especially 722.6, 722.9, and 9G-Tronic require specific torque specs and fluid fill procedures using a fluid level tool o r STAR diagnostic.

What to do:

Only let experienced workshops o r specialists handle ATF servicing.

Insist on OEM parts and gaskets – avoid silicone sealants unless Mercedes specifically recommends it.

After a service, inspect the pan area after 24–48 hours of driving.

If leaking, re-torque the bolts, and check fluid level using proper tools.