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Pass Your MOT

1998 Volvo 850 MOT Pass Rate

Pass rate for 850 models manufactured in 1998, based on 44 real MOT test results.

54.5%
Pass Rate
45.5%
Fail Rate
44
Total Tests
165,268
Avg Mileage

Data from official DVSA MOT testing records

1998 Volvo 850 MOT Analysis

The 1998 Volvo 850 has an MOT pass rate of 54.5% based on 44 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 165,268 miles on the odometer. With a 45.5% failure rate, the 1998 850 is rated as "Poor" for MOT reliability.

The leading cause of MOT failure for the 1998 Volvo 850 is Brakes, responsible for 6.8% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs range from £150–400. Identification of the vehicle is the second most common issue at 2.3%. Noise, emissions and leaks follows at 2.3%.

⚠ Based on limited data (44 tests)

Top failures specific to 1998 models only. The overall 850 page may show different rankings.

What Fails Most

Brakes 6.8%
Identification of the vehicle 2.3%

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
1Brakes6.8%3
2Identification Of The Vehicle2.3%1
3Noise, Emissions And Leaks2.3%1
4Non-component Advisories2.3%1
5Steering2.3%1
6Suspension2.3%1

Failures per 10,000 Miles

avg. 165,268 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.

Brakes0.41% per 10K miIdentification of the vehicle0.14% per 10K miNoise, emissions and leaks0.14% per 10K miNon-component advisories0.14% per 10K miSteering0.14% per 10K miSuspension0.14% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes0.416.8%3
Identification of the vehicle0.142.3%1
Noise, emissions and leaks0.142.3%1
Non-component advisories0.142.3%1
Steering0.142.3%1
Suspension0.142.3%1

Mileage Statistics

165,268
Mean
140,350
Median
127,365
25th Percentile
216,899
75th Percentile
2.75% failures per 10K miles

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

About This Data

The 1998 Volvo 850 has an MOT pass rate of 54.5% based on 44 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 165,268 miles on the odometer. With a 45.5% failure rate, the 1998 850 is rated as "Poor" for MOT reliability.

If you own or are considering buying a 1998 Volvo 850, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to brakes: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm). With an average mileage of 165,268 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.

Brakes — 6.8% of failures

Brakes issues account for 6.8% of MOT failures on 1998 Volvo 850 models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).

Identification of the vehicle — 2.3% of failures

Identification of the vehicle issues account for 2.3% of MOT failures on 1998 Volvo 850 models. 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.

Noise, emissions and leaks — 2.3% of failures

Noise, emissions and leaks issues account for 2.3% of MOT failures on 1998 Volvo 850 models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.

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

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