smart Fortwo 2016–2017 — technical service bulletin
Bulletin CL-Change-Over Valve · NHTSA communication 11031811 · issued Mar 12, 2022
Technical service bulletin
communication type
Engine
component
2016–2017
model years
4
vehicle entries
Official summary
In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (“MBUSA”) is extending the coverage for the change-over valve on your vehicle from the original New Vehicle Limited Warranty of 4 years / 50,000 miles to 10 years / 120,000 miles (whichever occurs first), and applies to the vehicle regardless of ownership. Why the warranty extension? On certain Model Year 2016-2017 smart vehicles, the change-over valve which is responsible for the operation of the heating shut-off valve within the coolant circ
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.