Q: 2007 Mercedes-Benz SL55 AMG on occasion will not shift up from first gear. What's the cause?

asked by on November 03, 2016

On occasion, (Not Always) car will not shift up from first gear. Have to pull over, stop engine, restart engine and drive, it then shifts as normally should. Could this be a Transmission Speed Sensor issue? If so, where is it located and how much does it cost to replace?? Looking forward to your response.

My car has 50457 miles.
My car has an automatic transmission.

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