- Engine / equipment
- Mercedes EQA and EQB electric
- Period mentioned
- 2021–2024
- Symptoms
- Risk of an internal short circuit in the high-voltage battery; leaking coolant reservoirs and faulty distribution valves; sporadic failures of driver aids (high beam, lane keeping, emergency braking, camera) and of the charging flap.
- Possible cause described
- Mercedes recalled more than 50,000 2021–2024 EQA and EQB for a possible internal short circuit with fire risk (KBA 16136R): first battery-management software and later battery replacement. The rest comes from owners in forums.
- Check for the garage
- Check recall 16136R by VIN and follow the charging instructions until the repair; check the coolant level.
- Cost cited in the source
- Free under the recall.A rough figure from the original database, not an up-to-date quote.
KNOWN FAULT · Mercedes-Benz
High-voltage battery, cooling and driver aids on the EQA and EQB
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
Free under the recall.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Check recall 16136R by VIN and follow the charging instructions until the repair; check the coolant level.
What are the symptoms?
Risk of an internal short circuit in the high-voltage battery; leaking coolant reservoirs and faulty distribution valves; sporadic failures of driver aids (high beam, lane keeping, emergency braking, camera) and of the charging flap.
Which cars and years does it affect?
- Brands
- Mercedes-Benz
- Engine / equipment
- Mercedes EQA and EQB electric
- Period mentioned
- 2021–2024
Taking it to a garage?
Models with this entry
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