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Mercedes-Benz C 300 Recall 21V072: Emergency call system may be disabled, delaying crash help

NHTSA campaign 21V072, reported February 12, 2021, 67 vehicles potentially affected.

What this recall means for you

Some 2017 to 2021 Mercedes-Benz vehicles may have had their communication module inadvertently deactivated during a service visit. This can disable the Emergency Call (eCall) function, which normally lets occupants contact emergency services through the call center after a crash or emergency.

If eCall is disabled, an occupant may be unable to reach emergency services through the call center in an emergency. That could delay responders and increase the risk of injury.

Mercedes-Benz USA will notify owners, and authorized dealers will inspect the communication module and activate it if necessary, free of charge. Owners of the additional vehicles were mailed letters on July 9, 2021. You can contact Mercedes-Benz USA customer service at 1-800-367-6372, referencing recall number 2021030005, and check your vehicle identification number (VIN) for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V072Mercedes-Benz USA, LLC
Component
COMMUNICATION; COMMUNICATION: AUTO CRASH NOTIFICATION
Problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2019 C300, E300, 2018-2020 CLA250, 2020 CLS450, AMG E53, AMG GT53, GLE450, 2018 AMG E63, AMG GTA, 2017-2020 GLA250, GLC300, 2019 GLC350, AMG GLC43, 2017-2018 GLE350, 2019 AMG GLC 43, GLC350, GLE400, 2017 GLS450, S550, C300 Cabrio, and 2018-2019 S560 vehicles. On June 18, 2021, an additional 9 vehicles were added, including certain 2021 GLA250, GLC300, 2018 S450, E400, and 2017 CLA250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the Emergency Call (eCall) function.
Risk
A disabled eCall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
Remedy
MBUSA will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021030005.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Mercedes-Benz AMG E532020
Mercedes-Benz AMG E632018
Mercedes-Benz AMG GLC432019
Mercedes-Benz AMG GT532020
Mercedes-Benz AMG GTA2018
Mercedes-Benz C 300201720182019
Mercedes-Benz CLA 2502017201820192020
Mercedes-Benz CLS 4502020
Mercedes-Benz E 300201720182019
Mercedes-Benz E 4002018
Mercedes-Benz GLA 25020172018201920202021
Mercedes-Benz GLC 30020172018201920202021
Mercedes-Benz GLC 3502019
Mercedes-Benz GLE 35020172018
Mercedes-Benz GLE 4002019
Mercedes-Benz GLE 4502020
Mercedes-Benz GLS 4502017
Mercedes-Benz S 4502018
Mercedes-Benz S 56020182019
Mercedes-Benz S5502017