Mercedes-Benz · Model Report
Mercedes-Benz GLB-Class2023
Showing safety data for the 2023 model year only.
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Mercedes-Benz · Model Report
Showing safety data for the 2023 model year only.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020-2021 CLA, 2019-2022 A-Class, 2022-2023 C-Class, 2024 CLE, 2020-2026 GLA/GLB, and 2023-2024 GLC vehicles. Please refer to MBUSA's recall report for specific model information. The micro-switch in the driver's door lock may corrode and fail to detect an open door, preventing the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway.
My 2023 Mercedes-Benz GLB 250 4MATIC, with approximately 70,000 miles, developed an intermittent Check Engine warning and began running rough and shaking during operation. The vehicle was taken to an authorized Mercedes-Benz dealership for diagnosis. The dealer confirmed a major engine problem and determined that the cylinder head assembly requires replacement. I am concerned that the failure of a major internal engine component on a vehicle of this age and mileage could create a safety risk, particularly because the vehicle was running rough and shaking while being driven and the Check Engine warning was intermittent. The vehicle is currently at the authorized Mercedes-Benz dealership and the cylinder head repair/replacement has begun. The dealer's documented diagnosis states: “Cylinder Head Assembly: Replace Cylinder Head.” I am reporting this issue because I believe NHTSA should be aware of this engine/cylinder-head failure and determine whether other 2023 Mercedes-Benz GLB 250 vehicles have experienced similar failures.
No injuries · No fire · No crash
NHTSA Recall 26V481 (Mercedes-Benz recall no. 2026070007). Interim owner notification letter dated September 18, 2026, titled "Replace Driver Door Lock." The micro-switch in the driver door lock may corrode and fail to detect an open driver door, which can prevent the electronic parking brake or "Auto-Park" feature from engaging automatically. This may result in a vehicle rollaway, increasing the risk of a crash or injury. Mercedes-Benz states in the interim letter that the remedy is not yet available and provides no date for when parts will arrive, leaving owners driving or parking a vehicle with a known rollaway defect. No crash, fire, injury, or fatality has occurred. Request: NHTSA should monitor this recall and press Mercedes-Benz for an expedited remedy.
No injuries · No fire · No crash
Safety Risk - Twice I was almost hit because my car didn't take off. O'REILLY Veri Scan Results - Free Emissions Status: Red Primary DTC: Mixture Formation (Cylinder 4) is irregular P219F: Fuel injectors measure and atomize fuel mixed with incoming air and sent to combustion chambers. Cylinder 4 PSI at 40 Mercedes Benz of San Juan $300 diagnostic Cylinder head needs to be replaced. Safety Risk - Twice I was almost hit because my car didn't take off. Problem has been confirmed by dealer. Not inspected by manufacturer, etc. Prior to failure there were no signs. Check Engine light came on and that is when it got checked at 55, 715 miles, soon after warranty ended.
No injuries · No fire · No crash
My 2023 Mercedes-Benz GLB 250 is experiencing engine misfires and fault codes consistent with a known cylinder head defect that is the subject of a recall affecting 2022 and earlier models. A certified mechanic has confirmed the issue aligns with the recall defect. Despite identical symptoms and engine configuration, my VIN is excluded. The condition results in loss of power and creates a potential safety hazard while driving. The following codes are referenced in the Mercedes recall and by recorded by the auto repair shop that provided an estimate for the repair: P1CEF85 - Injector injection quantity adjustment for cylinder balancing has almost reached the upper limit value at atleast one cylinder. P1CE577 - Injector injection quantity adjustment for uniform mixture formation has detected an excessively lean mixture at atleast one cylinder.
No injuries · No fire · No crash
Reporting because I see reports on other searches of this happening on other Mercedes Benz various years and models, the front stationary roof panel has shattered, cracked. I was lucky, my vehicle is only cracked (leaving my windshield components open to the weather , ie rain in Washington). Others report shattering while driving and having injuries from blowing glass. This appears to be an ongoing problem with Mercedes, they want over $2000 to fix a common problem with their vehicles.
No injuries · No fire · No crash