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Mercedes-Benz GLC X254/C254 (2022-present) reliability

At a glance

Mercedes-Benz GLC X254/C254 built around 2022: about average at the MOT

Mercedes-Benz GLC X254/C254 models built around 2022 fail their MOT about as often as similar cars the same age.

Looking at a Mercedes-Benz GLC X254/C254?

Enter its number plate to see its full MOT history, risk rating and running costs.

Key figure

8% of MOT tests on Mercedes-Benz GLC X254/C254 models built around 2022 ended in a fail (retests included), against 10% for similar cars the same age.

Most common issue

The most common MOT issue on Mercedes-Benz GLC X254/C254 models built around 2022 involves the tyres.

Mercedes-Benz GLC X254/C254
No reliability rating: too close to call between ratings2022-presentSUVDIESEL / PETROL / HYBRID ELECTRIC / UNKNOWN

Based on 5,421 tests of GLC models registered 2022+.

About 1 in 12 diesel GLC cars registered in 2022 (9.1%) failed their first MOT.

Based on 3,717 first MOTs (DVSA MOT results, 2025).

About 1 in 75 GLC X254/C254 MOTs (1.3%) failed and still hadn't passed 3 days later. That's for cars built around 2022 (3 years old), all fuels combined.

Based on 5,421 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.

About 1 in 30 GLC X254/C254 MOTs (3%) found at least one dangerous defect. These are cars built around 2022 (3 years old).

Based on 5,421 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.

X254/C254 fail rate by age

Below typicalAbove typicalHigh (28% or more)Highest fail rateUK average for cars this age
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
5,4218.0%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 3 years old.

How the GLC X254/C254 compares

At each age below, see how the GLC X254/C254 holds up against other cars the same age. The averages combine all fuel types.

Based on 63,174 tests across 19 Mercedes-Benz models, built around 2022 (3 years old).

Below typicalAbove typicalHigh (28% or more)Highest fail rateMercedes-Benz average
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
5,4218.0%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.

What to check before viewing

The model's most common MOT issues, turned into things you can ask about or look for.

Brake pads

High priority

Ask when the pads were last replaced and check the warning-light history.

Brake discs

High priority

Ask for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.

Tyres

Worth checking

Check tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.

Vehicle-specific check

Worth checking

Check the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.

Other SUVs to compare

Other SUVs, with each one's figures taken at the same age as the GLC X254/C254.

  1. 1

    Honda HR-V

    Same body type, tested at the same age

    Fail rate
    4.9%
    Fail, no pass in 3 days
    0.3%
    Dangerous
    1%
    Still registered at 10 years
    97%

    Lower fail rate: 4.9%, against 8.0% for the Mercedes-Benz GLC X254/C254, both built around 2022.

    4,493 MOT tests on cars built around 2022

  2. 2

    Lexus UX

    Same body type, tested at the same age

    Fail rate
    4.9%
    Fail, no pass in 3 days
    0.6%
    Dangerous
    1.2%

    Lower fail rate: 4.9%, against 8.0% for the Mercedes-Benz GLC X254/C254, both built around 2022.

    4,866 MOT tests on cars built around 2022

  3. 3

    Volkswagen ID4 Life

    Same body type, tested at the same age

    Fail rate
    10.3%

    No clear edge over the Mercedes-Benz GLC X254/C254 on these figures.

    2 critical recall campaigns matching this model/build period.

    4,494 MOT tests on cars built around 2022

  4. 4

    Toyota Yaris Cross

    Same body type, tested at the same age

    Fail rate
    7%
    Fail, no pass in 3 days
    0.5%
    Dangerous
    0.7%

    Fewer fails still not passed 3 days later: 0.5%, against 1.3% for the Mercedes-Benz GLC X254/C254.

    11,364 MOT tests on cars built around 2022

Fail rate
= the share of MOT tests that ended in a fail. Retests count as tests.
Fail, no pass in 3 days
= the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
Dangerous
= the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
Still registered at 10 years
= the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.

Recall context

73 recalls in all

15 of the 73 GLC X254/C254 recalls cover cars built in these years.

  • 15 recalls

Top concerns

  • SRPC2610 - eCall function
  • SRPC2512 - bolting of steering coupling
  • SRPC2501 - processor Starter/Generator

For the exact car, check GOV.UK's recall checker with the number plate.

What has gone wrong on GLC X254/C254 cars built around 2022

The share of diesel cars that have ever failed an MOT on each part of the car. Based on 189 cars.

Structural systems

Drivetrain
1%

Wear items

Tyres
10%
Brakes
5%
Lighting
1%
X254/C254 variants compared

GLC X254/C254 variants built around 2022

The fail rate for each GLC X254/C254 variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.

Diesel

  • GLC8.1%1,807 tests
  • GLC 300 AMG LINE PREM + D 4M A6.0%786 tests
  • GLC 300 AMG LINE PREM D 4M A9.2%726 tests

Hybrid electric

  • GLC 300 AMG LINE 4MATIC AUTO8.4%371 tests
  • GLC 300 AMG LINE PREMIUM 4M A8.2%256 tests
  • GLC 300 AMG LINE PREM + 4M A5.7%247 tests
  • GLC 300 AMG LINE E 4MATIC AUTO7.9%241 tests

Petrol

  • GLC7.4%351 tests
All generations of this modelPlenty of data

Most common issues on Mercedes-Benz GLC models of this age

This list covers every Mercedes-Benz GLC built around 2022, whichever generation it is. We don't have a defect list for the X254/C254 on its own.

Most common advisories and fails

In order of the share of MOT tests that recorded each one

  1. 1
    Advisory

    Tyre worn close to the legal limit or worn on the edge

    18.3%
    Advisory: 2,407Fail: 138 (5% of the times it was found)
  2. 2
    Advisory

    Tyre slightly damaged, cracking or perishing

    5.2%
    Advisory: 495Fail: 149 (23% of the times it was found)
  3. 3
    Advisory

    Brake pads wearing thin

    4.8%
    Advisory: 451Fail: 33 (7% of the times it was found)
  4. 4
    Advisory

    Tyre has a cut that does not reach the ply or cords

    4.4%
    Advisory: 204Fail: 278 (58% of the times it was found)
  5. 5
    Minor

    Windscreen damaged, but the driver can still see clearly

    2.5%
    Advisory: 0Fail: 0 (0% of the times it was found)

Based on 8,021 tests

Looking at a Mercedes-Benz GLC X254/C254?

Enter its number plate to see its full MOT history, risk rating and running costs.

Frequently asked questions

Built around 2022 (3 years old), the Mercedes-Benz GLC X254/C254 (2022-present) fails MOTs slightly less often than typical for this age. This is based on 5,421 3-year-old MOT tests from DVSA data. Each retest counts as a test.

*The build year is worked out from the date a car was first used on UK roads. For most cars this matches when it was registered, but imports may differ by a few months.

Data sourced from DVSA MOT History API. From 5,421 MOT tests on Mercedes-Benz GLC models first registered from 2022. These figures are a guide, not a guarantee.