Mercedes-Benz CLK320 transmission not shifting, reverse functional on Mercedes-Benz CLK320

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz CLK320 owners report experiencing transmission issues where the transmission fails to shift, despite the reverse gear functioning properly. These problems can often be attributed to low transmission fluid levels, which may be resolved by simply adding fluid. Additionally, electrical issues such as broken connectors, leaky wires, faulty conductor plates, malfunctioning solenoids, or weak batteries can also hinder gear shifting. Mechanical faults within the transmission system, including a faulty valve body or controller, have been identified as potential causes, sometimes requiring costly repairs. Furthermore, some owners emphasize the importance of regular maintenance to prevent significant transmission problems and ensure smooth operation. It is recommended that owners experiencing these issues consult a qualified mechanic or a Mercedes specialist for proper diagnosis and repairs.

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