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1,586 tests in 2025

Renault G reliability and MOT pass rate

58.5% passed first time. The 41.5% fail rate is 18.9 points worse than the all-car average, on a median example 12 years old with 100,227 miles.

MOT pass rates / Renault

Pass rate

58.5%

22.6% of all cars failed; 41.5% of these did.

Fixed on the day

6.7%

Passed after a defect was put right during the visit.

Median at test

100,227 mi

12 years old.

Fail rate by age

Age at testTestsFail rate
3-5 years0—
6-9 years0—
10-13 years1,53441.6%
14+ years52—

What the G fails on

Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.

  1. Suspension14 dangerous54.7%
  2. Lamps, reflectors and electrical equipment8 dangerous44.5%
  3. Brakes114 dangerous25.1%
  4. Tyres143 dangerous18.7%
  5. Steering4 dangerous18.5%
  6. Body, chassis, structure4 dangerous15.7%
  7. Noise, emissions and leaks9.7%
  8. Visibility9.3%

The exact defects that fail it

Every failure item DVSA recorded against a G in 2025, counted by how many tests each one appeared on.

  1. 1Coil spring: fractured or broken197 tests
  2. 2Stop lamp: not working118 tests
  3. 3Track rod end: ball joint has excessive play110 tests
  4. 4Ball joint: ball joint excessively worn85 tests
  5. 5Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt84 tests
  6. 6Brake pads: less than 1.5 mm thick63 tests
  7. 7Tread depth: tread depth below requirements of 1.6mm61 tests
  8. 8Linkage ball joints: ball joint excessively worn59 tests

What wears out first

Advisories are the tester flagging wear that is still legal. A typical G collects 2.9 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.

  1. 1Tread depth: tread depth below requirements of 1.6mm360 tests
  2. 2Brake discs: in such a condition that it is seriously weakened243 tests
  3. 3Brake pads: less than 1.5 mm thick184 tests
  4. 4Condition: has a tear, caused by separation or partial failure of its structure121 tests
  5. 5Pins and bushes: pin or bush excessively worn119 tests
  6. 6Linkage ball joints: ball joint excessively worn103 tests
  7. 7Ball joint: ball joint excessively worn100 tests
  8. 8Coil spring: corroded so that its cross sectional area is reduced and seriously weakened99 tests

Questions

What is the Renault G MOT pass rate?

58.5% of the 1,586 Renault G first-attempt MOTs in 2025 passed. The fail rate of 41.5% compares with 22.6% across all cars. A further 6.7% passed after a defect was fixed during the test visit.

What does a Renault G usually fail on?

The single most common failure is "Coil spring: fractured or broken", recorded on 197 failed tests, followed by "Stop lamp: not working" and "Track rod end: ball joint has excessive play". By section, suspension appears in 54.7% of failures, lamps, reflectors and electrical equipment appears in 44.5% of failures, brakes appears in 25.1% of failures.

Does age change the odds?

Sharply. At 3 to 5 years old the fail rate was n/a%; at 10-13 years it was 41.6%. The median Renault G tested in 2025 was 12 years old with 100,227 miles.

First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every G trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.

Other Renault models

Checking a particular G?

The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.

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