Mercedes-Benz EQA H243
Weaknesses, engine ratings and buying advice
The EQA is Mercedes' entry-level electric SUV — based on the MFA2 platform of the GLA H247 but with electric power instead of combustion. Compact dimensions, good urban range, and Mercedes build quality. A daily driver, not a technology statement.
The EQA-EM electric motor comes in three variants: 140 kW (EQA 250) front-drive, 168 kW (EQA 300 4MATIC) and 215 kW (EQA 350 4MATIC) with additional rear motor for AWD. The 66.5 kWh battery achieves 250–330 miles WLTP, realistically 185–250 miles depending on driving and temperature. DC charging at up to 100 kW — not the fastest, but practical.
Known issues: the 12V auxiliary battery depletes during standstills over 5 days — a software issue Mercedes has addressed but not fully resolved. AC charging can trigger charge port overheat warnings. The heat pump (standard from 2022) helps winter range, but below 23°F range still drops 25–35%.
Test-drive checklist: Test DC charge curve — does it actually hit 100 kW? Check 12V battery voltage in the trip computer (below 12.3V = warning). Cycle through regen levels. Winter test: how far does the EQA actually go with heating on?
2026 market: Between $27,500 and $44,000. Strong depreciation — EVs lose value faster than ICE. Lease returns are the best deals.
Insider pick: EQA 250 (140 kW) as a lease return — best value for urban commuters.
Engine Overview
The Mercedes-Benz EQA H243 is available with 3 engine variants — from 190 to 292 hp.
Electric drivetrain on MFA2 platform (compact-SUV-based). Battery 66.5 kWh (250+: 70.5 kWh with Farasis cells — fire risk, worldwide recall 2025/2026). 11 kW AC charging standard, 100 kW DC. Drivetrain itself is reliable; the 12V auxiliary battery is the most common day-to-day failure point (vehicle strands despite full HV battery). CCS charging sessions can be aborted by certain stations — firmware update usually fixes this. Before buying a 250+ model, verify recall completion status.
- !! Farasis Battery Fire Risk (Recall 16136R)
70.5 kWh high-voltage batteries from Farasis (build 12/2021–01/2024) can develop an internal short circuit through cell faults and cause vehicle fires. 51,729 vehicles worldwide affected.
Symptoms: No prior warning. Recall letter from Mercedes. Prior software throttling: charging times +15 min, range -20%. - !! HV Battery Contactor Switches With Delay from 40,000 km
At very low temperatures the main HV battery contactor can switch with a delay. Results in a brief start delay; no safety risk.
Symptoms: Delayed start in frost, brief drivetrain fault message - !! 12V Battery — Discharge During Standstill from 30,000 km
The 12V starter battery is only recharged while driving or during HV charging. After 4–7 days of standing without charging, voltage drops critically. Problem occurs even in vehicles under 2 years old.
Symptoms: App reports critical battery state, power windows no longer operate correctly, vehicle won't start, electrical systems unresponsive
+ 2 more engine weaknesses + vehicle weaknesses
Electric drivetrain on MFA2 platform (compact-SUV-based). Battery 66.5 kWh (250+: 70.5 kWh with Farasis cells — fire risk, worldwide recall 2025/2026). 11 kW AC charging standard, 100 kW DC. Drivetrain itself is reliable; the 12V auxiliary battery is the most common day-to-day failure point (vehicle strands despite full HV battery). CCS charging sessions can be aborted by certain stations — firmware update usually fixes this. Before buying a 250+ model, verify recall completion status.
- !! Farasis Battery Fire Risk (Recall 16136R)
70.5 kWh high-voltage batteries from Farasis (build 12/2021–01/2024) can develop an internal short circuit through cell faults and cause vehicle fires. 51,729 vehicles worldwide affected.
Symptoms: No prior warning. Recall letter from Mercedes. Prior software throttling: charging times +15 min, range -20%. - !! HV Battery Contactor Switches With Delay from 40,000 km
At very low temperatures the main HV battery contactor can switch with a delay. Results in a brief start delay; no safety risk.
Symptoms: Delayed start in frost, brief drivetrain fault message - !! 12V Battery — Discharge During Standstill from 30,000 km
The 12V starter battery is only recharged while driving or during HV charging. After 4–7 days of standing without charging, voltage drops critically. Problem occurs even in vehicles under 2 years old.
Symptoms: App reports critical battery state, power windows no longer operate correctly, vehicle won't start, electrical systems unresponsive
+ 2 more engine weaknesses + vehicle weaknesses
Electric drivetrain on MFA2 platform (compact-SUV-based). Battery 66.5 kWh (250+: 70.5 kWh with Farasis cells — fire risk, worldwide recall 2025/2026). 11 kW AC charging standard, 100 kW DC. Drivetrain itself is reliable; the 12V auxiliary battery is the most common day-to-day failure point (vehicle strands despite full HV battery). CCS charging sessions can be aborted by certain stations — firmware update usually fixes this. Before buying a 250+ model, verify recall completion status.
- !! Farasis Battery Fire Risk (Recall 16136R)
70.5 kWh high-voltage batteries from Farasis (build 12/2021–01/2024) can develop an internal short circuit through cell faults and cause vehicle fires. 51,729 vehicles worldwide affected.
Symptoms: No prior warning. Recall letter from Mercedes. Prior software throttling: charging times +15 min, range -20%. - !! HV Battery Contactor Switches With Delay from 40,000 km
At very low temperatures the main HV battery contactor can switch with a delay. Results in a brief start delay; no safety risk.
Symptoms: Delayed start in frost, brief drivetrain fault message - !! 12V Battery — Discharge During Standstill from 30,000 km
The 12V starter battery is only recharged while driving or during HV charging. After 4–7 days of standing without charging, voltage drops critically. Problem occurs even in vehicles under 2 years old.
Symptoms: App reports critical battery state, power windows no longer operate correctly, vehicle won't start, electrical systems unresponsive
+ 2 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| AC/DC Charging Interruptions and Fault Messages Frequent charging interruptions independent of charge point or cable. During AC charging the session drops after 5–6% state of charge. On-board charger sometimes needs replacement. Symptoms: Charging stops after a short time, fault message at charge point, charging rate drops below 6 kW. from 20,000 km | High | |
| Drivetrain Fault Message Sporadic warning messages 'Drivetrain fault'. Cause often an MBUX software or HV battery management bug. Symptoms: Drivetrain fault warning, vehicle runs with reduced power; fault disappears after restart. from 30,000 km | Low | |
| Drivetrain Vibrations from 60 km/h EQA vehicles from production from February 2022 show vibrations (droning) from 60 km/h that intensify up to 110 km/h. Cause unclear; workshop often cannot reproduce the issue. Symptoms: Droning or vibration through the floor from 60 km/h, stronger at 100–110 km/h, especially at constant speed from 15,000 km | High | |
| 12V Battery Discharges During Standstill The 12V onboard battery discharges during extended standstill through networked control units. Software update reduces the problem. Symptoms: Vehicle cannot be unlocked/started after several days standing from 20,000 km | Low |
Test Reports
TÜV Report 2024
The electric SUV shows mixed MOT results, typical for early electric vehicle generations.
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Known Problems and Issues +
A total of 12 weaknesses have been documented for the Mercedes-Benz EQA H243 (2021–2026) — 5 engine-related and 7 vehicle-related. One problem engine: EQA-EM (Elektro). Typical issues affect Electronics, Interior, Other.
EQA (EQA-EM, 2021–2026) — Stay Away!: Farasis Battery Fire Risk (Recall 16136R), HV Battery Contactor Switches With Delay, 12V Battery — Discharge During Standstill. Power: 190 PS.
EQA (EQA-EM, 2021–2026) — Stay Away!: Farasis Battery Fire Risk (Recall 16136R), HV Battery Contactor Switches With Delay, 12V Battery — Discharge During Standstill. Power: 228 PS.
EQA (EQA-EM, 2021–2026) — Stay Away!: Farasis Battery Fire Risk (Recall 16136R), HV Battery Contactor Switches With Delay, 12V Battery — Discharge During Standstill. Power: 292 PS.
What to watch out for with the Mercedes-Benz EQA? 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 EQA H243 have? +
What should I look for when buying a used Mercedes-Benz EQA H243? +
Which engine is recommended? +
Which Mercedes-Benz EQA H243 engine is the most fun? +
Is the Mercedes-Benz EQA H243 worth buying used? +
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Last updated: February 2026 · All information without guarantee