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2021 Land Rover Defender X-dynamic S Auto MOT Pass Rate

Pass rate for Defender X-dynamic S Auto models manufactured in 2021, based on 54 real MOT test results.

94.4%
Pass Rate
5.6%
Fail Rate
54
Total Tests
24,613
Avg Mileage

Data from official DVSA MOT testing records

This page shows all Defender X-dynamic S Auto cars tested in 2021. Want to see how cars built in 2021 hold up over time?

View 2021 Land Rover Defender X-dynamic S Auto vintage page → (94.4% current pass rate)

2021 Land Rover Defender X-dynamic S Auto MOT Analysis

The 2021 Land Rover Defender X-dynamic S Auto has an MOT pass rate of 94.4% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 24,613 miles on the odometer. With a 5.6% failure rate, the 2021 Defender X-dynamic S Auto is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 2021 Land Rover Defender X-dynamic S Auto is Seat belts and supplementary restraint systems, responsible for 3.7% of failures. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs range from £50–200 per belt. Tyres is the second most common issue at 3.7%. Visibility follows at 1.9%.

⚠ Based on limited data (54 tests)

Top failures specific to 2021 models only. The overall Defender X-dynamic S Auto page may show different rankings.

What Fails Most

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
1Seat Belts And Supplementary Restraint Systems3.7%2
2Tyres3.7%2
3Visibility1.9%1

Failures per 10,000 Miles

avg. 24,613 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.

Seat Belts1.50% per 10K miTyres1.50% per 10K miVisibility0.75% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Seat Belts1.503.7%2
Tyres1.503.7%2
Visibility0.751.9%1

Mileage Statistics

24,613
Mean
22,688
Median
13,078
25th Percentile
33,122
75th Percentile
2.28% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 2021 Land Rover Defender X-dynamic S Auto has an MOT pass rate of 94.4% based on 54 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 24,613 miles on the odometer. With a 5.6% failure rate, the 2021 Defender X-dynamic S Auto is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 2021 Land Rover Defender X-dynamic S Auto, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to seat belts and supplementary restraint systems: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard. With relatively low average mileage of 24,613 miles, many of these vehicles are still in good mechanical condition.

Seat belts and supplementary restraint systems — 3.7% of failures

Seat belts and supplementary restraint systems issues account for 3.7% of MOT failures on 2021 Land Rover Defender X-dynamic S Auto models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.

Tyres — 3.7% of failures

Tyres issues account for 3.7% of MOT failures on 2021 Land Rover Defender X-dynamic S Auto models. 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.

Visibility — 1.9% of failures

Visibility issues account for 1.9% of MOT failures on 2021 Land Rover Defender X-dynamic S Auto models. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.

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

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