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Renault Master exhaust, emissions and leaks problems

DVSA MOT tests 2022–2025 · 4,726 MOT tests · Updated

At 16 years, 1.8 in 100 MOT tests of the Renault Master failed on exhaust, emissions and leaks, against 6.2 for all class 4 vehicles the same age (all test years; 4,726 MOT tests) [1].

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  • Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 84 MOT tests with a fail
  • By age: seen at 21 ages from 3 to 23 years, 63,499 MOT tests
  • MOT tests at 16 years: 4,726 for the Renault Master

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

1.8 fails per 100 MOT tests at 16 years, against 6.2 for all class 4 vehicles tested at 16 (all test years). That is about average.

Why it matters

An exhaust, emissions and leaks fail stops the car passing until it is fixed.

What to check

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

The Renault Master is a commercial or van-based vehicle: it is compared with all class 4 vehicles, cars and vans together, so part of any difference can come from how vans are used.

Renault Master exhaust, emissions and leaks fails by age

Renault Master exhaust, emissions and leaks fails per 100 MOT tests by ageSolid line: the Renault Master. Dashed line: all cars the same age. The table below lists every value.02463 years: 2.3 per 100 (all cars 0.5), 2,870 MOT tests34 years: 2.3 per 100 (all cars 0.7), 2,889 MOT tests5 years: 2.3 per 100 (all cars 1.0), 2,785 MOT tests56 years: 2.4 per 100 (all cars 1.3), 2,930 MOT tests7 years: 2.5 per 100 (all cars 1.7), 3,026 MOT tests78 years: 2.5 per 100 (all cars 2.1), 2,915 MOT tests9 years: 2.2 per 100 (all cars 2.4), 3,063 MOT tests910 years: 2.0 per 100 (all cars 2.8), 2,972 MOT tests11 years: 2.7 per 100 (all cars 3.2), 2,961 MOT tests1112 years: 2.0 per 100 (all cars 3.7), 3,063 MOT tests13 years: 2.1 per 100 (all cars 4.3), 3,183 MOT tests1314 years: 1.9 per 100 (all cars 5.1), 3,641 MOT tests15 years: 1.8 per 100 (all cars 5.7), 4,331 MOT tests1516 years: 1.8 per 100 (all cars 6.2), 4,726 MOT tests17 years: 1.5 per 100 (all cars 6.5), 4,646 MOT tests1718 years: 1.7 per 100 (all cars 6.8), 4,036 MOT tests19 years: 1.8 per 100 (all cars 7.0), 3,059 MOT tests1920 years: 2.3 per 100 (all cars 7.0), 2,165 MOT tests21 years: 2.2 per 100 (all cars 7.1), 1,712 MOT tests2122 years: 2.8 per 100 (all cars 7.0), 1,415 MOT tests23 years: 4.2 per 100 (all cars 6.9), 1,111 MOT tests23
Fails per 100 MOT tests by age, all first-use years pooled. Renault Master All class 4 vehicles the same age Shaded: over 18 years, survivors only.
AgeMOT testsFails per 100All class 4 vehicles the same age
32,8702.30.5
42,8892.30.7
52,7852.31.0
62,9302.41.3
73,0262.51.7
82,9152.52.1
93,0632.22.4
102,9722.02.8
112,9612.73.2
123,0632.03.7
133,1832.14.3
143,6411.95.1
154,3311.85.7
164,7261.86.2
174,6461.56.5
184,0361.76.8
19*3,0591.87.0
20*2,1652.37.0
21*1,7122.27.1
22*1,4152.87.0
23*1,1114.26.9

All first-use years of the Renault Master pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years. * Only survivors are still tested at this age.

What fails in the exhaust, emissions and leaks at 16 years

Advisories (not fails)

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  • Model risks for this year and fuel
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How to check on a test drive

Start the car from cold and look for smoke at the exhaust, listen for blowing joints, and look under the engine and gearbox for fresh oil or fluid drips.

The most common advisory here in MOT records: Engine oil leaks: leak, but not excessive.

Check one Renault Master, not the average

The figures here describe Renault Master cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Renault Master problems

Exhaust, emissions and leaks on rival models

Questions people ask

Does the Renault Master have more exhaust, emissions and leaks problems than other cars?

1.8 in 100 MOT tests at 16 years, against 6.2 for all class 4 vehicles the same age: about average by our test (all test years; 4,726 MOT tests).

How common are Renault Master exhaust, emissions and leaks problems?

1.8 in 100 MOT tests at 16 years failed on exhaust, emissions and leaks, against 6.2 for all class 4 vehicles the same age (all test years; 4,726 MOT tests).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 63,499 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare