Mercedes-Benz E320 transmission issue causing loss of power after short drive, RPMs max out but no acceleration on Mercedes-Benz E320

Some Mercedes-Benz E320 owners report experiencing transmission issues that result in a loss of power after a short drive, with RPMs maxing out but no acceleration. These problems can include rough shifting, slipping gears, and fluid leaks, which significantly impact the driving experience. Common transmission issues reported involve low transmission fluid levels, leaks in the 13-pin connector O-ring, defective valve bodies or conductor plates, and faulty brake light switches that can affect gear shifting. Many owners find that symptoms such as hard shifting and lack of shifting may stem from incorrect transmission fluid levels or a faulty 13-pin connector plug O-ring, which are relatively straightforward to fix. Given these symptoms, it is recommended that owners have their transmission system thoroughly inspected by a qualified mechanic to diagnose and address the specific problem effectively.