Alfa Romeo 166 (1999)
1999 Alfa Romeo 166
CarHunch analysed 910 real MOT records for the 1999 Alfa Romeo 166.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 1999 Alfa Romeo 166 is a significantly weaker performer than the UK average, with a first-time MOT pass rate of just 64.3% against the national 80%—and a worrying 27.4% of these cars have recorded dangerous defects at some point, well above acceptable levels. This is a real buyer concern: nearly three in ten vehicles have shown safety-critical faults, so pre-purchase inspection is essential.
At around 95,500 miles, these cars are high-mileage examples for their age, and the average of 3.02 failures per test coupled with 9.5 advisories per vehicle tells you this model demands fastidious maintenance to stay roadworthy. If you're considering one, budget for immediate remedial work and factor in regular specialist attention—Alfa Romeo electrics and cooling systems are notoriously temperamental on this generation.
The 1999 Alfa Romeo 166 has a below-average first-time pass rate (64.3% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.
These stats describe 910 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 910 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 1999.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 910 Alfa Romeo 166 cars.
Before you buy a 1999 Alfa Romeo 166
Based on MOT data from 910 vehicles — here's what to check.
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Check the full MOT history.
27.4% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 903 | 64.3% | 3.02 |
Colour Breakdown
Based on 2,945 Alfa Romeo 166 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 1999 Alfa Romeo 166 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1999 Alfa Romeo 166 vehicles fall between 73,399 and 113,507 miles.
1999 Alfa Romeo 166 — Still on the Road
Numbers are thinning — 13% of 1999 Alfa Romeo 166s are still active.
Numbers are declining — 15 vehicles still getting MOTs in 2025 (13% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
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