2017 Mercedes-Benz B 250e problems, complaints & recalls
Most-reported problem areas: Power Train (10) · Engine (5) · Vehicle Speed Control (1)
Safety recalls (3)
Steering 2021-04-01 · campaign 21V229000 · 4,992 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 B250e, CLA250, 2017-2018 AMG CLA45, GLA250, and AMG GLA45 vehicles. The steering shaft bore hole for the universal joint bearing may allow excessive movement that, over time, could result in the separation of the bearing and universal joint.
Risk: A separated universal joint bearing can cause a loss of steering control and increase the risk of a crash.
Fix: MBUSA will notify owners, and dealers will inspect, and as necessary, replace the steering shaft, free of charge. Owner notification letters were mailed July 23, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021060001.
Communication: Auto Crash Notification 2021-02-05 · campaign 21V058000 · 1,292,258 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Risk: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Fix: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
Air Bags:frontal 2017-10-06 · campaign 17V627000 · 495,290 vehicles
Defect: Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Cou
Risk: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Fix: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Service bulletins (58)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Electrical System 2026-08-06 · LI82.85-P-079087 · Service Bulletin/Repair Instructions
complaint a popup is seen on the hu with the message "data connection temporarily not available". potentially affected functionalities in ntg4.5, ntg5 1.weather 2.local search 3.ip radio 4.send2car 5.speech detection service 6.navigation 7.iheartradio 8.traffic cams cause mb apps is sundowned for al
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). the noise is heard once in each instance when changing direction of travel. note: sound file in attachment cause if the complaint is eliminated by experimentally loosening the outboard collar n
Visibility/Wiper 2026-06-19 · PSL-NCU Return Parts 6/19 · Other
dear mercedes-benz usa dealers, the part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing pdc. the deadline for all dealer returns is no later than thursday, july 9, 2026. after july 9th, returns of these parts will no longer be
Showing the 6 most recent of 58 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-12-15 · Power Train“in november 2024, the vehicle indicated "add coolant". the vehicle was brought to mercedes benz of scottsdale for servicing. the dealership apparently added coolant without advising me that the b250-e has a 100% chance of failure to the drive unit / coolant intrusion unless a small part is replaced before coolant leaks into the inverter/entire en…”
2025-01-03 · Power Train“on wednesday [xxx] i was driving my electric vehicle to work. i exited the freeway and as soon as i stopped at the light for the off ramp a warning light indicator appeared stating coolant low. i found this odd as i was unaware of electric vehicles using coolant. i clicked the ok button on the steering wheel and the message was acknowledged and …”
2024-12-15 · Unknown Or Other“while driving a notice to park the car and call for maintenance came up then while i was trying to get to safe stopping point the car went on to neutral and shut down while i was at speed. i turned the car back on and moved it to safety and called for roadside assistance …”
2024-10-04 · Engine · 72,000 mi“the contact owns a 2017 mercedes-benz b250e. the contact stated while driving approximately 60 mph, the vehicle the lost automotive power and stalled. the message "shut off immediately" was displayed. the vehicle was later towed to the residence. the cause of the failure was not yet determined. the local dealer was notified of the failure. the manu…”
2024-04-24 · Power Train · 27,000 mi“the contact owns a 2017 mercedes-benz b250e. the contact stated that while reversing from the garage at 3–5 mph, the contact depressed the park button. the vehicle attempted to go into the park position. there was an abnormal noise detected. there were no warning lights illuminated. the vehicle was towed to the local dealer, where it was diagnosed …”
2023-11-01 · Engine“my car just stalled and was not able to move on the highway exit which caused a high risk for the safety of passengers and the safety of others. the car has been towed to a mercedes dealer in west covina, california. and they indicate that the coolant leaked into the drive motor and caused the car to stop. prior to this car stall, there was no warn…”
2023-10-01 · Power Train“at 23,596 total vehicle mileage, the electric drive motor failed while driving. this occurred two days and less than 50 miles after having an annual service performed at an authorized mercedes benz dealership. failure resulted in sudden loss of power alternating with full torque power at any throttle position making the car uncontrollable and haz…”
2023-09-29 · Engine“speed sensor has coolant on it, indicating a leak into the motor which leads to the motor needing to be replaced. …”
2023-01-17 · Power Train“electric motor has a coolant line running through it that has developed a leak and is in the process of destroying the motor. this is apparently a known issue that affects all mercedes e-class electric drive, b250e, toyota rav4-ev and some early tesla model s cars that have this early type tesla motor installed. if the motor is not replaced, it cou…”
2023-01-05 · Engine“i needed a new electric motor. it was covered by the warranty but would not be if it fails again, and it's known to happen again. this is a very common issue with the mercedes b250e from 2014-2017. i believe this should be a recall. the cost to consumers for repair is around $20,000. there is a problem with coolant leaking into the electric motor c…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.