Tag Archives: engine control unit

Mercedes-Benz ECO Start/Stop Mode Shut Down

Posted on by

Mercedes Benz has determined that certain 2016-2017 GLE43 & GLE43 Coupe vehicles may have engine control unit (ECU) software that is incompatible with the transmission control unit programming.

Rapid and consecutive downshifts during braking could result in the engine speed to drop below the required threshold and shut down. An engine shutdown could also result following a slight tap of the accelerator pedal after a combination of an ECO start and a simultaneous high engine load. The instrument cluster warning lamps will be activated upon engine shut down with and ignition “ON”, indicating to the driver that the vehicle is not in ECO start/stop mode and needs to be restarted manually.

Dealers will correct the problem by reprogramming the engine and transmission control unit software. Owners wanting more information about the problem are asked to contact MBUSA customer service at 1-877-496-3691. The NHTSA campaign number for this recall is 17V-506.

2016 Mercedes Benz GLE450 Engine Shuts Down While Braking

Posted on by

Daimler AG has determined that certain 2016 Mercedes-Benz GLE450 Coupe 292 platform vehicles have an issue with the engine control unit (ECU). According to the defect report, the engine control software might cause the engine to unexpectedly shut down while braking. The driver may interpret the shut down as a planned ECO start/stop, but the engine will not restart automatically and will require the driver to restart the vehicle manually. Depending on the traffic situation, an unintentional engine shut-down could increase the risk of a crash.

Those receiving notices will be asked to return to their dealerships to have the ECU software updated. For more information about the problem, owners are asked to contact MBUSA customer service at 1-800-367-6372. The NHTSA campaign number for this recall is 16V-440.