Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost of diagnosing the P0816 Mercedes-Benz code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
The Transmission Control Module (TCM) monitors the Downshift Switch Circuit signal. The TCM sets the OBDII code when the Downshift Switch Circuit signal is not to factory specifications.
Need more information on how to fix the P0816 Mercedes-Benz code? Get Access to Factory Service Manuals
Get the P0816 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area
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