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MOT performance

Porsche 911: lights, reflectors and electrical MOT failures

4.8% of 100,223 MOT tests on the Porsche 911 in 2023–2024 failed on lights, reflectors and electrical, against 11.2% for all cars. Allowing for age, mileage and fuel, Porsche 911s failed on lights, reflectors and electrical 60% less often than comparable cars, from 4,824 tests with a lights, reflectors and electrical failure.

100,223 MOT tests on 54,057 vehicles, 2023–2024 · Source: DVSA (Open Government Licence) · Analysis: 73 Auto

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At a glance

Porsche 911 lights, reflectors and electrical MOT failures at a glance
FigureValueBasis
Tests failed on lights, reflectors and electrical4.8%4,824 of 100,223 tests
All cars11.2%n = 65,477,892
vs similar cars-60%same age, mileage and fuel

Lights, reflectors and electrical items that fail most

Porsche 911 lights, reflectors and electrical MOT failure items
ItemAreaShare of tests
Headlamp aim: too highLights, reflectors and electrical0.99%
Position lamp: not workingLights, reflectors and electrical0.95%
Rear fog lamp: not workingLights, reflectors and electrical0.57%

By registration year

Porsche 911 lights, reflectors and electrical MOT failures by registration year
RegisteredTestsFailed on itvs similar cars
20211,6210.7%-66%
20203,0980.5%-73%
20194,7350.7%-67%
20184,3761.0%-60%
20173,8120.9%-70%
20163,4461.0%-74%
20153,4541.0%-80%
20143,1541.2%-80%
20132,5711.5%-83%
20123,1001.5%-85%
20112,5422.4%-77%
20103,4482.8%-77%
20092,9323.3%-78%
20083,7363.7%-75%
20074,9114.1%-75%
20065,6044.2%-77%
20055,6265.2%-72%
20044,8256.6%-65%
20035,24110.3%-47%
20024,76710.0%-48%
20012,9999.5%-47%
20001,8308.7%-48%
19992,4259.7%-37%
19982,0579.9%-31%
19971,4498.0%-37%
19961,8766.3%-51%
19951,3096.3%-51%
19941,0567.4%-45%
19935167.8%-42%
19924157.7%-40%
19916008.7%-35%
19901,3738.2%-40%
19891,0618.4%-36%
19887388.0%-41%
198775610.1%-26%
198663910.0%-26%
198553014.7%+6%
198444111.3%-17%

What this does and doesn't tell you

A higher failure rate on lights, reflectors and electrical can reflect the design, typical use or how often owners replace parts before the MOT. It doesn't tell you about any one car: a specific Porsche 911's MOT history does. See MOT check.

Check a specific Porsche 911

Enter a UK registration to see that car's own MOT history and what it is likely to cost to own. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.

UK number plate or 17-character VIN

About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.

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