Mercedes-Benz EQB X243
Weaknesses, engine ratings and buying advice
Engine Overview
The Mercedes-Benz EQB X243 is available with 3 engine variants — from 190 to 292 hp.
Electric drivetrain on MFA2 platform, identical to the EQA. Optionally available as a 7-seater. Same battery pack (66.5 kWh), same drivetrain technology.
- !! Farasis Battery Fire Risk — Joint Recall with EQA
EQB with 70.5 kWh Farasis battery (build 12/2021–01/2024) is capable of fire through internal cell short circuit. 51,729 vehicles worldwide. Fix: complete battery replacement.
Symptoms: No driver symptoms before fire. Recall notification by post. - !! HV Battery — Charging Abort with Drivetrain Error from 30,000 km
Some EQB 250 units with the 70.5 kWh battery (Farasis cells, MY 2022–2024) abort fast charging with a 'drivetrain fault' message. In severe cases, complete HV battery replacement is required.
Symptoms: Charging stops suddenly at 20–60% state of charge, display shows 'drivetrain system fault', vehicle still drives, further charging attempts fail - !! Battery Cooling System — Power Throttling from 30,000 km
Insufficient coolant circulation in the HV battery circuit. In the event of overheating the system throttles drivetrain output.
Symptoms: Sudden power reduction in heat or during fast charging. Coolant warning messages on display.
+ 2 more engine weaknesses + vehicle weaknesses
Electric drivetrain on MFA2 platform, identical to the EQA. Optionally available as a 7-seater. Same battery pack (66.5 kWh), same drivetrain technology.
- !! Farasis Battery Fire Risk — Joint Recall with EQA
EQB with 70.5 kWh Farasis battery (build 12/2021–01/2024) is capable of fire through internal cell short circuit. 51,729 vehicles worldwide. Fix: complete battery replacement.
Symptoms: No driver symptoms before fire. Recall notification by post. - !! HV Battery — Charging Abort with Drivetrain Error from 30,000 km
Some EQB 250 units with the 70.5 kWh battery (Farasis cells, MY 2022–2024) abort fast charging with a 'drivetrain fault' message. In severe cases, complete HV battery replacement is required.
Symptoms: Charging stops suddenly at 20–60% state of charge, display shows 'drivetrain system fault', vehicle still drives, further charging attempts fail - !! Battery Cooling System — Power Throttling from 30,000 km
Insufficient coolant circulation in the HV battery circuit. In the event of overheating the system throttles drivetrain output.
Symptoms: Sudden power reduction in heat or during fast charging. Coolant warning messages on display.
+ 2 more engine weaknesses + vehicle weaknesses
Electric drivetrain on MFA2 platform, identical to the EQA. Optionally available as a 7-seater. Same battery pack (66.5 kWh), same drivetrain technology.
- !! Farasis Battery Fire Risk — Joint Recall with EQA
EQB with 70.5 kWh Farasis battery (build 12/2021–01/2024) is capable of fire through internal cell short circuit. 51,729 vehicles worldwide. Fix: complete battery replacement.
Symptoms: No driver symptoms before fire. Recall notification by post. - !! HV Battery — Charging Abort with Drivetrain Error from 30,000 km
Some EQB 250 units with the 70.5 kWh battery (Farasis cells, MY 2022–2024) abort fast charging with a 'drivetrain fault' message. In severe cases, complete HV battery replacement is required.
Symptoms: Charging stops suddenly at 20–60% state of charge, display shows 'drivetrain system fault', vehicle still drives, further charging attempts fail - !! Battery Cooling System — Power Throttling from 30,000 km
Insufficient coolant circulation in the HV battery circuit. In the event of overheating the system throttles drivetrain output.
Symptoms: Sudden power reduction in heat or during fast charging. Coolant warning messages on display.
+ 2 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Charge Port Lock Defective The electric charge port lock no longer works reliably. Connector is not latched or cannot be removed. Symptoms: Charging cable cannot be inserted/removed, charging fault message from 30,000 km | Low |
Test Reports
TÜV Report 2024
The electric SUV shows average results at the MOT inspection.
2023-11Top Reported Issues
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Known Problems and Issues +
A total of 11 weaknesses have been documented for the Mercedes-Benz EQB X243 (2021–2026) — 5 engine-related and 6 vehicle-related. Typical issues affect Electronics, HVAC, Other, Body.
EQB (EQB-EM, 2021–2026) — Be Careful: Farasis Battery Fire Risk — Joint Recall with EQA, HV Battery — Charging Abort with Drivetrain Error, Battery Cooling System — Power Throttling. Power: 190 PS.
EQB (EQB-EM, 2021–2026) — Be Careful: Farasis Battery Fire Risk — Joint Recall with EQA, HV Battery — Charging Abort with Drivetrain Error, Battery Cooling System — Power Throttling. Power: 228 PS.
EQB (EQB-EM, 2021–2026) — Be Careful: Farasis Battery Fire Risk — Joint Recall with EQA, HV Battery — Charging Abort with Drivetrain Error, Battery Cooling System — Power Throttling. Power: 292 PS.
What to watch out for with the Mercedes-Benz EQB? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Mercedes-Benz EQB X243 have? +
What should I look for when buying a used Mercedes-Benz EQB X243? +
Which engine is recommended? +
Which Mercedes-Benz EQB X243 engine is the most fun? +
Is the Mercedes-Benz EQB X243 worth buying used? +
What horsepower variants are available for the Mercedes-Benz EQB X243? +
Last updated: February 2026 · All information without guarantee