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9L Twin-Turbo TFSI DI (DECA
E63/E64 LCI
and transmission faults
Gear ratio and shift logic
ZF 6-Speed Automatic Transmission Mechatronic Seal Kit (Genuine ZF) 9L Twin-Turbo TFSI DI (DECARestore proper hydraulic pressure and eliminate common leaks with this Genuine ZF Mechatronic Seal Kit for ZF 6 speed automatic transmissions. These seals are critical when servicing or resealing the mechatronic unit and are a must replace item during valve body repairs or rebuilds. Worn or hardened seals can cause delayed shifts, harsh engagement, pressure loss, and transmission faults. Replacing them helps ensure smooth operation and long term
