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1997 Mercedes-Benz 230 MOT Pass Rate

Pass rate for 230 models manufactured in 1997, based on 41 real MOT test results.

58.5%
Pass Rate
41.5%
Fail Rate
41
Total Tests
110,163
Avg Mileage

Data from official DVSA MOT testing records

1997 Mercedes-Benz 230 MOT Analysis

The 1997 Mercedes-Benz 230 has an MOT pass rate of 58.5% based on 41 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 110,163 miles on the odometer. With a 41.5% failure rate, the 1997 230 is rated as "Below Average" for MOT reliability.

The leading cause of MOT failure for the 1997 Mercedes-Benz 230 is Brakes, responsible for 24.4% 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. Suspension is the second most common issue at 19.5%. Body, chassis, structure follows at 19.5%.

⚠ Based on limited data (41 tests)

Top failures specific to 1997 models only. The overall 230 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
1Brakes24.4%10
2Suspension19.5%8
3Body, Chassis, Structure19.5%8
4Lamps, Reflectors And Electrical Equipment9.8%4
5Noise, Emissions And Leaks9.8%4

Failures per 10,000 Miles

avg. 110,163 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.

Brakes2.21% per 10K miSuspension1.77% per 10K miBody & Structure1.77% per 10K miLamps & Electrical0.89% per 10K miNoise, emissions and leaks0.89% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes2.2124.4%10
Suspension1.7719.5%8
Body & Structure1.7719.5%8
Lamps & Electrical0.899.8%4
Noise, emissions and leaks0.899.8%4

Mileage Statistics

110,163
Mean
120,488
Median
65,032
25th Percentile
149,212
75th Percentile
3.77% failures per 10K miles

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

About This Data

The 1997 Mercedes-Benz 230 has an MOT pass rate of 58.5% based on 41 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 110,163 miles on the odometer. With a 41.5% failure rate, the 1997 230 is rated as "Below Average" for MOT reliability.

If you own or are considering buying a 1997 Mercedes-Benz 230, budget for potential repairs before each MOT. 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 110,163 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.

Brakes — 24.4% of failures

Brakes issues account for 24.4% of MOT failures on 1997 Mercedes-Benz 230 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).

Suspension — 19.5% of failures

Suspension issues account for 19.5% of MOT failures on 1997 Mercedes-Benz 230 models. 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.

Body, chassis, structure — 19.5% of failures

Body, chassis, structure issues account for 19.5% of MOT failures on 1997 Mercedes-Benz 230 models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.

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

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