Audi 100 MOT reliability

Audi 100s passed their MOT first time 71% of the time across 166 tests in 2025. 257 are still licensed in Great Britain.

First-time pass rate

71%

MOTs analysed

166

Still licensed (GB)

257

Body type

Sedan

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

1994 petrol

21 MOTs

These figures come from 21 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

Passed first time 67%. Typical mileage 153,366 (most between 104,841 and 186,782).

2005: 57% → 2006: 55% → 2007: 51% → 2008: 46% → 2009: 44% → 2010: 46% → 2011: 44% → 2012: 49% → 2013: 53% → 2014: 50% → 2015: 51% → 2016: 45% → 2017: 60% → 2018: 54% → 2019: 67% → 2020: 55% → 2021: 44% → 2022: 55% → 2023: 68% → 2024: 64% → 2025: 67%

Most common failures

Catalyst emissions: carbon monoxide content after 2nd fast idle exceeds default limits (4.8%)
Individual direction indicators: incorrect colour (4.8%)
Headlamp aim: too high (4.8%)
Catalyst emissions: hydrocarbon content after 2nd fast idle exceeds default limits (4.8%)
Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength (4.8%)

1994 diesel

3 MOTs

These figures come from only 3 MOT tests. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 67%. Typical mileage 143,249 (most between 108,876 and 152,436).

2005: 62% → 2006: 50% → 2007: 56% → 2008: 47% → 2009: 53% → 2010: 37% → 2011: 42% → 2012: 35% → 2013: 44% → 2014: 57% → 2015: 77% → 2016: 58% → 2017: 78% → 2018: 63% → 2019: 0% → 2020: 71% → 2021: 50% → 2022: 50% → 2023: 67% → 2024: 75% → 2025: 67%

Most common failures

Wipers: does not clear the windscreen effectively (33.3%)

Where 1994 100s fail

Brakes

19.0%

Lights & electrics

9.5%

Exhaust, emissions & leaks

9.5%

Visibility & wipers

9.5%

Body, structure & corrosion

4.8%

Suspension & axles

4.8%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.