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Mercedes-Benz EQB EQB 300 4MATIC AMG Line common faults.

2021–2026, SUV, electric, 228 HP.

The list covers this version.

What you save stays on this device only. My saves

1 fault write-ups. No recall on the list.

If you know the year, pick it. Faults for other years drop out of the list.

Before you buy

Known faults

1 fault write-ups

EQA / EQB: not a dedicated EV platform, and range and boot space pay for it

comfort

The EQA and the EQB do not sit on a dedicated electric platform. The German technical press states explicitly that the EQA is built on the GLA platform, which is not an electric car platform. The EQB comes from the GLB in the same way.

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This is not a fault but a design constraint, and it has consequences a used buyer can measure in money, which is exactly why it belongs here:

  • The battery went under the floor of a combustion car, not into the floor. So the boot and the cabin are smaller than in similarly sized rivals on dedicated platforms.
  • Against the 66.5 kWh net pack the range is more modest than on a dedicated platform car with the same capacity: the body was not designed for this.
  • The low mounted battery housing is more vulnerable: kerbs, deep potholes and frozen snow hit it from below. Repairing a damaged HV battery housing is not body work.

What this does not mean: that the EQA/EQB is a worse car. Its battery is actively thermally managed, and the Mercedes battery warranty applies to it. A buyer simply has to know what they are buying, and to look under the car.

What to check

  • Lift the car or crouch underneath: look for scrapes, dents and impact marks on the lower cover of the HV battery housing
  • Ask whether it ever took a hit from below (kerb, pothole, speed bump), and if so, whether the housing was inspected
  • Ask the franchised dealer for a battery state of health (SoH) measurement in writing
2 more steps in the write-up

Checklist

Mercedes-Benz EQB EQB 300 4MATIC AMG Line

First what you would check on any car. Then the faults of this model.

Before you buy

Checklist

The printed sheet starts with what you would check on any car. What you tick stays on this device only.

On every car

Ask the owner

Faults of this model

vinkodex.com · Before you buy it, see what can go wrong.

Engine and transmission

No engine and transmission for this yet. When they are in, you see them here.

Variant data

What is in this version

Factory data

Trim
EQB 300 4MATIC AMG Line
Body
SUV
Fuel
electric
Transmission
automatic
Engine size
—
Power
168 kW (228 HP)
Drive
AWD
Production
2021–2026

Factory service interval

The manufacturer specifies this for this version. Of the mileage and the time, the one that comes first is the one that counts.

  • Cabin (pollen) filter

    • 30,000 km or 2 years

  • Brake fluid change

    • first: 3 years, then 2 years(first change at 3 years, then every two years)
All X243 versions

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms