Mercedes Recalls GLE 450 and GLS 450 For Stalled Engines

Mercedes Recalls GLE 450 and GLS 450 For Stalled Engines

Mercedes-Benz is recalling 105,000 vehicles because shipments may not decrease completely.

— Mercedes-Benz transmission problems have prompted a recall of 105,000 GLE 450 and GLS 450 vehicles because the transmission may not fully downshift, causing the engine to stall.

The recalled 2020-2023 GLE 450 and GLS 450 vehicles require a transmission control unit software update.

“If the downshift from 7th to 6th gear is not fully completed during the vehicle’s braking maneuver at the same time, and additional conditions exist (for example, reduced shift operation, low transmission oil temperature, recovery at the same time as the 48V transformer) , the engine can stop.” – Mercedes-Benz

Mercedes says the car can be restarted, but a traffic stop is dangerous and the driver will have no advance warning.

Mercedes opened an investigation in March 2022 after receiving reports of GLE/GLS vehicles stalling.

Engineers found errors that occurred during the automatic transfer from 7th to 6th gear. But there was no known relationship between the occurrences of engine stalling and abnormal shifts.

In May 2023, Mercedes finally succeeded in duplicating the problem in one car and recording the relevant data with a data logger.

Engineers determined that the reported stalling may only occur in certain GLE/GLS vehicles with certain 6-cylinder gasoline engines and 9-speed automatic transmissions.

Mercedes-Benz is aware of 261 reports received between December 3, 2019, and February 6, 2024, and 730 warranty claims received between May 6, 2019, and December 5, 2023.

Mercedes expects to send recall letters on April 16, 2024, but owners can contact customer service at 800-367-6372.