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SEAT Alter MOT Pass Rate

Overall pass rate across all manufacture years, based on 65 real MOT test results. Failure rate: 33.8%.

66.2%
Pass Rate
33.8%
Fail Rate
65
Total Tests
Tyres
Top Failure

Data from official DVSA MOT testing records

SEAT Alter MOT Reliability Overview

The SEAT Alter is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 66.2% and a failure rate of 33.8%, which is slightly above the UK average of approximately 37%.

Based on this data, the SEAT Alter earns a "Good" reliability rating. The average SEAT Alter presents for MOT with approximately 74,653 miles on the clock. The 2011 manufacture year performs best with a 61.4% pass rate.

The most common MOT failure for the SEAT Alter is Tyres, affecting 27.7% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Identification of the vehicle at 18.5%. Suspension rounds out the top three at 13.8%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.

⚠ Based on limited data (65 tests)

Top failures across all manufacture years combined. Individual year pages may show different top failures.

What Fails Most

Tyres 27.7%
Identification of the vehicle 18.5%
Suspension 13.8%
⚖️ Compare

Pass Rate by Manufacture Year

2011High Fail Rate
61.4%
Tests Avg Mileage 78,009Top Failure Identification of the vehicle

* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Tyres27.7%18
2Identification Of The Vehicle18.5%12
3Suspension13.8%9
4Lamps, Reflectors And Electrical Equipment10.7%7
5Body, Chassis, Structure6.2%4
6Steering6.2%4
7Seat Belts And Supplementary Restraint Systems4.6%3
8Road Wheels1.5%1
9Brakes1.5%1

Failures per 10,000 Miles

avg. 74,653 mi

For every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.

Tyres3.71% per 10K miIdentification of the vehicle2.47% per 10K miSuspension1.85% per 10K miLamps & Electrical1.45% per 10K miBody & Structure0.82% per 10K miSteering0.82% per 10K miSeat Belts0.62% per 10K miWheels0.21% per 10K miBrakes0.21% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Tyres3.7127.7%18
Identification of the vehicle2.4718.5%12
Suspension1.8513.8%9
Lamps & Electrical1.4510.7%7
Body & Structure0.826.2%4
Steering0.826.2%4
Seat Belts0.624.6%3
Wheels0.211.5%1
Brakes0.211.5%1

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Mileage at MOT

74,653
Mean
83,606
Median
47,011
25th Percentile
103,586
75th Percentile

The average SEAT Alter has 74,653 miles when tested for MOT.

📊 Mileage-Adjusted Failure Rate

How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.

4.53%
Fail Rate per 10K Miles
Average across all makes: 5.38%
33.8%
Overall Fail Rate
74,653 avg miles
⚠️ Average — typical failure rate

The SEAT Alter has a mileage-adjusted failure rate of 4.53% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.

About SEAT Alter MOT Data

The SEAT Alter is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 66.2% and a failure rate of 33.8%, which is slightly above the UK average of approximately 37%.

For SEAT Alter owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and identification of the vehicle for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Alter is likely to perform.

Tyres — 27.7% of failures

Tyres issues account for 27.7% of MOT failures on the SEAT Alter. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.

Identification of the vehicle — 18.5% of failures

Identification of the vehicle issues account for 18.5% of MOT failures on the SEAT Alter. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.

Suspension — 13.8% of failures

Suspension issues account for 13.8% of MOT failures on the SEAT Alter. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.

Frequently Asked Questions

What is the MOT pass rate for the SEAT Alter?

Based on 65 (based on limited data) MOT tests in our database, the SEAT Alter has an overall pass rate of 66.2% (33.8% fail rate).

What are the most common MOT failures on a SEAT Alter?

The top 3 reasons a SEAT Alter fails its MOT are: 1. Tyres (27.7%), 2. Identification of the vehicle (18.5%), 3. Suspension (13.8%). Check these areas before booking your MOT.

Is the SEAT Alter reliable?

With a 33.8% MOT failure rate, the Alter is more reliable than average compared to the UK average of ~40%.

What should I check before an MOT on my SEAT Alter?

Based on failure data, focus on: Tyres (27.7%); Identification of the vehicle (18.5%); Suspension (13.8%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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