How often does the Mercedes-Benz EQB fail its MOT?

4.7% of 129 first-time tests in 2024 were failures, against 12.0% for all electric cars.

What does the Mercedes-Benz EQB most often fail on?

Tyres, 87.5% of failing defects. The single most common defect was: A tyre cords visible or damaged.

Mercedes-Benz · Fully electric · 129 inspections in 2024 · Rank 9 of 81DVSA MOT analysis

Tyres are 88% of everything that fails a Mercedes-Benz EQB

129 inspections in a single year make the EQB a modestly documented electric car in the data. Tyres cause 87.5% of its failures; tyres take 3.7× the share they take on petrol and diesel cars of the same age.

FIGURE 1 // WHERE IT WEARSMercedes-Benz EQB

Top three failure systems, annotated from 6 failed first-time tests. Arrows point to where the defect is found on the car.

First-time test findings

First-time failure rate

OVERALL4.7%

Overall first-time failure rate.

ALL ELECTRIC CARS12.0%

All electric cars in the data.

The Mercedes-Benz EQB fails 4.7% of first-time inspections. Tyres cause 87.5% of its failures.

FIGURE 2 // TYRE SECTION5 certificates in 2024

The tyre that wears from the inside

Tyres take 87.5% of the defects that fail this car, 3.7× the share seen on petrol and diesel cars of the same age. The most common item in that group is "A tyre cords visible or damaged", recorded 5 times in 2024.

SECTION // TYRES CONCENTRATION

Where it concentrates

The EQB stays under the petrol fleet at every age we can measure. What it does fail on is unusually concentrated.

DEFECT CONCENTRATION IN FAILED TESTS:

EQB tyres share87.5%

Petrol and diesel average23.7%

The single most common item on a EQB certificate is "A tyre cords visible or damaged", recorded 5 times.

Source: DVSA MOT defect items, 2024 test year.

Buyer's protocolPre-purchase checklist

What to check

Check tyre age and tread across the full width, inner edge included. Electric cars wear tyres faster; a cheap mismatched set on a used car tells you how it was run. Have the suspension joints, bushes and springs checked on a lift. On this car it is a leading cause of failure and it is not visible from the outside. Ask for the full MOT history by registration on the free DVSA service: advisories are next year's failures.

3 inspection points:

✓ Tyre inner-edge wear and age

✓ Suspension joints and bushes on a lift

✓ Free DVSA MOT history check

FIGURE 3 // FAILURE RATE BY AGEvs petrol, diesel and all electric cars

Points hidden where fewer than 50 cars of that age were tested. Dashed lines are the same-age petrol and diesel fleets.

Data sheet

Inspections: 129
Passed: 123
Failed: 6
Passed after repair: 0
Failure rate: 4.7% (all EV 12.0%)
Average age: 0.0 years
Top cause: Tyres 87.5%

TABLE 1 // WHAT FAILS, BY SYSTEMshare of failing defects

System	Share	vs petrol/diesel
Tyres	87.5%	3.7× more
Suspension	12.5%	in line
Brakes	0.0%	in line
Visibility	0.0%	in line
Lighting	0.0%	in line
Steering	0.0%	in line
Body	0.0%	in line

TABLE 2 // TOP DEFECTS ON THE CERTIFICATE

A tyre cords visible or damaged5
A tyre seriously damaged2
A suspension component with an unsafe modification1

Wording as printed by the tester, from the DVSA inspection manual.

Where it holds up

Brakes fail less often than on petrol and diesel cars (0.0% of defects vs 18.7%)
Visibility fail less often than on petrol and diesel cars (0.0% of defects vs 11.9%)
Lighting fail less often than on petrol and diesel cars (0.0% of defects vs 16.5%)
Steering fail less often than on petrol and diesel cars (0.0% of defects vs 3.1%)

Where it fails

Tyres take a bigger share of failures than on petrol and diesel cars of the same age (87.5% vs 23.7%)

VERSIONS SEEN IN THE TESTSas recorded

EQB 350 AMG LNE PREMIUM 4MATIC44
EQB 300 AMG LNE PREMIUM 4MATIC34
EQB 350 AMG LINE 4MATIC21
EQB 300 AMG LINE 4MATIC21
EQB 350 AMG LINE PREMIUM + 4M4
EQB 300 AMG LINE PREMIUM + 4M3
EQB 300 AMG LINE EXECUTIVE 4M1
EQB 350 AMG LINE EXECUTIVE 4M1

OWNER REPORTS // MATCHED TO RECORDED DEFECTS0 read · 0 matched

No owner discussion has been matched to this car's recorded defects yet. Reports are re-collected every quarter; the figures on this page do not depend on them.

Summaries written by us, never quotes; every entry links to its source. Owner reports have no denominator and never feed the failure rate.

SIMILAR CARS IN THE DATAclosest rate and age, other brands

MG45.7% fail · 966 tests Volkswagen ID.52.9% fail · 204 tests BYD Atto1.6% fail · 124 tests Toyota BZ4X0.7% fail · 138 tests

OTHER MERCEDES-BENZ ELECTRIC CARS

Mercedes-Benz B-Class15.6% fail first time Mercedes-Benz EQA10.1% fail first time Mercedes-Benz EQC14.7% fail first time Mercedes-Benz EQE2.8% fail first time

Three things the data shows

129 inspections in 2024 make this one of the adequately-documented electric cars in the data.
Tyres take 3.7× the share of failures they take on petrol and diesel cars of the same age.
It ranks 9 of 81 electric cars by first-time failure rate.

LIMITS // WHAT THE INSPECTION DOES NOT TELL YOU

No battery health, no motor, no charging performance. The test covers brakes, suspension, steering, tyres, lights, visibility and structure. A car with a badly degraded battery passes as long as it stops and steers. Read this page as evidence about the chassis, not the powertrain. Cars are tested from their third year, so the newest model years are missing; every figure carries its sample size for that reason. Full methodology.