Fault File
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Mercedes EQA

All generations and engines together · 6,008 MOT tests in the 2025 data

How this model wears

Mercedes EQAClass average, all tracked models

Known issues

Measured

Computed from DVSA MOT results, all of Great Britain, 2025. Nothing here is opinion.

What testers flag

Share of tests where each item was recorded. The dark tick is the class average across all tracked models; bars are scaled within each group.

Faults with the car itself

The rows that judge the model rather than its keeper. 6,008 tests in this band.

A suspension pin, bush or joint excessively worn
Advisory
2.4%class 0.3%
A suspension pin, bush or joint excessively worn
Fail
0.4%class 0.1%
Excessive fluctuation in brake effort through each wheel revolution.
Advisory
0.2%class 0.3%
A wheel with a loose or missing wheel nut, bolt or stud
Fail
0.2%class 0.1%

Wear, upkeep and luck

Tyres, pads and stone chips say more about how the car was driven and maintained than about how it was built.

Tyre tread depth not in accordance with the requirements
Advisory
25.0%class 18.8%
A tyre seriously damaged
Advisory
21.2%class 13.1%
A tyre seriously damaged
Fail
4.7%class 2.3%
Child Seat fitted not allowing full inspection of adult belt
Advisory
2.0%class 2.1%
Nail in tyre
Advisory
1.9%class 1.7%
A tyre cords visible or damaged
Fail
1.8%class 1.3%
Tyre tread depth not in accordance with the requirements
Fail
1.7%class 2.3%
Wiper blade defective
Minor
1.4%class 1.1%

Unconfirmed issues

Reported

Owner folklore from forums and the motoring press. Most of it never shows up in an MOT, which is why this section exists at all.

High-voltage battery fire risk (software recall)

Confirmed pattern

Mercedes-Benz issued a UK safety recall for EQA 250+ cars built between September 2021 and July 2024, after finding a short-circuit risk in the high-voltage battery that could, in a worst case, lead to a fire. Roughly 5,800 UK cars are covered. The fix is a free battery-management software update at a dealer; until it was applied, owners were told to charge no higher than 80%. Check the car's recall status against its build date rather than assuming an older car is automatically clear.

DVSA recall R/2025/106, 5,803 UK vehicles, builds 09/2021-07/2024 · sources: DVSA vehicle recalls database, Mercedes EQA owners Facebook group

Electric power steering backup software fault

Confirmed pattern

A May 2024 recall covers a large batch of EQA cars built between October 2020 and January 2024, where the backup function in the electric steering software might not work as intended, meaning power assistance could be reduced or, at worst, lost. It is a free software flash at a dealer with no parts needed. Given how many cars this touches, it is worth confirming on any used EQA from that build window that the update has actually gone through.

DVSA recall R/2024/166, 17,718 UK vehicles, builds 10/2020-01/2024 · source: DVSA vehicle recalls database

Front sensor fault linked to phantom emergency braking

Emerging

A November 2025 recall covers a circuit board fault in the front short-range sensor fitted to certain EQA cars (shared with several other Mercedes models), fixed free by replacing the sensor. Separately, some owners report the automatic emergency braking system triggering hard with nothing in the road ahead. Mercedes has not officially tied the two together, but a faulty sensor board is a plausible cause, and it is worth asking a seller whether the car has ever braked unexpectedly on its own.

DVSA recall R/2025/439 · sources: DVSA vehicle recalls database, owner reports via JustAnswer

Mercedes Me app loses connection or shows stale data

Emerging

A recurring gripe is the Mercedes Me app dropping its connection to the car, showing charge level or location data that is days or weeks old, or failing to trigger remote pre-conditioning at all. It is a software and connectivity issue rather than a mechanical one, but on a car where owners lean on the app to check charge state and warm the cabin before a journey, a flaky connection is a genuine daily annoyance. Fixes reported by owners are inconsistent: sometimes an app update helps, sometimes a dealer has to reset the car's telematics module.

Reported at all mileages and ages · sources: Honest John owner reviews, MBWorld forums

Brake caliper housing bolts under-torqued

Early 2019-2021 build cars only

A small recall covers early EQA and EQB cars built between December 2019 and November 2021, where the bolts on the front brake caliper housing might not have been tightened to the correct torque at the factory. The remedy is a free check and rework of the bolting at a dealer. Only a handful of UK cars were ever affected, so it will not apply to most used examples on sale now, but it costs nothing to check on an early car.

DVSA recall R/2022/062, 17 UK vehicles, builds 12/2019-11/2021 · source: DVSA vehicle recalls database

Viewing one? Ask this

Built from the two sections above.

Run the car's registration through the DVSA vehicle recall checker before you view it. Any of the HV battery, steering or sensor recalls showing as outstanding is an unresolved safety fix, not just a footnote.
Ask for service history showing a completed recall or software campaign entry for a car inside the affected build dates. No mention of it on an eligible car usually means the work still needs doing.
Check the dash and instrument cluster for any message capping charge at 80% or flagging a battery fault. That points to the HV battery software recall not yet being applied.
At low speed, turn the steering wheel lock to lock and feel for heaviness or inconsistency in the power assistance. Uneven or patchy assistance can be the steering backup fault the 2024 recall targeted.
Ask the seller if the car has ever braked hard on its own with nothing ahead of it. A yes points toward the front sensor fault behind the late-2025 recall.
Open the Mercedes Me app, or ask the owner to, and check it shows live, current charge and location data. Stale or unreachable app data is a known gripe worth factoring into the deal, though not a dealbreaker.
Check the build date plate against December 2019 to November 2021 for early cars. If it falls in that window, confirm the brake caliper bolting recall has been carried out.

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