What are the most common Mercedes-Benz EQB problems?
According to Au7o's analysis of 2,120+ owner reports, the 2023 Mercedes-Benz EQB has 8 documented issues. The most frequently reported are: High-Voltage Battery Cell Defect (Farasis Cells) Causing Internal Short and Fire Risk, High-Voltage Battery Bus Bar Secured With Incorrect Screws - Sudden Loss of Drive Power, Heat Pump / Cabin Heating Cuts to Cold Air After Roughly 15 Minutes. Of these, 2 are rated critical and should be addressed promptly.
Is the Mercedes-Benz EQB reliable?
The 2023 Mercedes-Benz EQB has 8 known issues documented across 2,120+ owner reports. 2 issues are rated critical: High-Voltage Battery Cell Defect (Farasis Cells) Causing Internal Short and Fire Risk and High-Voltage Battery Bus Bar Secured With Incorrect Screws - Sudden Loss of Drive Power. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz EQB problems?
Repair costs for known Mercedes-Benz EQB issues range from $0 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, High-Voltage Battery Cell Defect (Farasis Cells) Causing Internal Short and Fire Risk, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2022-2024 Mercedes-Benz EQB High-Voltage Battery Cell Defect (Farasis Cells) Causing Internal Short and Fire Risk?
Certain EQB high-voltage battery packs built with early-production lithium-ion cells from Farasis Energy (Ganzhou, China) contain cells that are insufficiently robust against stress factors at high state of charge. A deviation in the supplier's production process allows an intern… Repairs typically run $0-$0. Severity: high.
What is the 2022-2023 Mercedes-Benz EQB High-Voltage Battery Bus Bar Secured With Incorrect Screws - Sudden Loss of Drive Power?
On a small production window of EQB 4MATIC models, the internal bus bar connection inside the high-voltage battery was assembled with the wrong screws. The joint can loosen over time, raising resistance at the connection until the contact fails. When it does, the vehicle loses al… Repairs typically run $0-$0. Severity: high.
What is the 2022-2025 Mercedes-Benz EQB Heat Pump / Cabin Heating Cuts to Cold Air After Roughly 15 Minutes?
EQB owners in cold climates report that cabin heat works normally at first, then drops to ambient-temperature air after about 10-20 minutes of driving, with the blower still running and the set temperature unchanged. Shutting the car off and restarting it restores heat - until it… Repairs typically run $0-$1,500. Severity: medium.
What is the 2022-2025 Mercedes-Benz EQB AC Onboard Charger / Charge Port Phase Failure - 'Charging Process Interrupted'?
A recurring EQ-family fault where AC (Level 2) charging aborts partway through or refuses to start, while DC fast charging still works normally. The Mercedes me app reports 'charging process interrupted' and the session must be restarted manually, often repeatedly. On the EQB and… Repairs typically run $0-$1,800. Severity: medium.
What is the 2022-2023 Mercedes-Benz EQB Electric Drive Module Coolant Seal Leak Lowering HV Insulation Resistance?
A manufacturing deviation in the electric drive module left the cooling circuit inside the module inadequately sealed on a range of EQA, EQB and EQC vehicles, allowing coolant to seep into the motor housing. Over time the intruding coolant lowers the insulation resistance of the… Repairs typically run $1,500-$6,000. Severity: medium.
What is the 2022-2025 Mercedes-Benz EQB Real-World Range Significantly Below EPA Rating?
EQB owners consistently report real-world range 20-30% below the EPA-rated 243 miles, even in moderate weather. The boxy shape and higher weight of the three-row layout contribute to worse aerodynamic efficiency than the sedan-based EQ models, and highway range drops particularly… Severity: low.
What is the 2022-2025 Mercedes-Benz EQB Infotainment System Lag and Crashes?
The MBUX infotainment system in the EQB suffers from frequent lag, unresponsive touchscreen inputs, and occasional full system crashes requiring a reboot. The issue is worse after extended use and when multiple connected services are active simultaneously. Severity: low.
What is the 2022-2025 Mercedes-Benz EQB Brake Pedal Feel Inconsistency with Regenerative Braking?
The EQB exhibits inconsistent brake pedal feel as the system blends regenerative and friction braking. At low speeds and low battery state of charge, the transition between regen and friction braking creates a noticeable "dead zone" or sudden grab in the pedal, making smooth stop… Severity: low.
