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1990 Mercedes 280 G Wagon MOT Pass Rate

Pass rate for 280 G Wagon models manufactured in 1990, based on 142 real MOT test results.

54.9%
Pass Rate
45.1%
Fail Rate
142
Total Tests
47,066
Avg Mileage

Data from official DVSA MOT testing records

1990 Mercedes 280 G Wagon MOT Analysis

The 1990 Mercedes 280 G Wagon has an MOT pass rate of 54.9% based on 142 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,066 miles on the odometer. With a 45.1% failure rate, the 1990 280 G Wagon is rated as "Poor" for MOT reliability.

The leading cause of MOT failure for the 1990 Mercedes 280 G Wagon is Lamps, reflectors and electrical equipment, responsible for 4.2% of failures. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs range from £5–50. Body, chassis, structure is the second most common issue at 4.2%. Noise, emissions and leaks follows at 2.8%.

Top failures specific to 1990 models only. The overall 280 G Wagon 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
1Lamps, Reflectors And Electrical Equipment4.2%6
2Body, Chassis, Structure4.2%6
3Noise, Emissions And Leaks2.8%4
4Suspension2.1%3
5Brakes1.4%2
6Non-component Advisories1.4%2

Failures per 10,000 Miles

avg. 47,066 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.

Lamps & Electrical0.90% per 10K miBody & Structure0.90% per 10K miNoise, emissions and leaks0.60% per 10K miSuspension0.45% per 10K miBrakes0.30% per 10K miNon-component advisories0.30% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Lamps & Electrical0.904.2%6
Body & Structure0.904.2%6
Noise, emissions and leaks0.602.8%4
Suspension0.452.1%3
Brakes0.301.4%2
Non-component advisories0.301.4%2

Mileage Statistics

47,066
Mean
48,805
Median
26,090
25th Percentile
79,588
75th Percentile
9.58% failures per 10K miles

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

About This Data

The 1990 Mercedes 280 G Wagon has an MOT pass rate of 54.9% based on 142 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,066 miles on the odometer. With a 45.1% failure rate, the 1990 280 G Wagon is rated as "Poor" for MOT reliability.

If you own or are considering buying a 1990 Mercedes 280 G Wagon, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to lamps, reflectors and electrical equipment: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test. With relatively low average mileage of 47,066 miles, many of these vehicles are still in good mechanical condition.

Lamps, reflectors and electrical equipment — 4.2% of failures

Lamps, reflectors and electrical equipment issues account for 4.2% of MOT failures on 1990 Mercedes 280 G Wagon models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.

Body, chassis, structure — 4.2% of failures

Body, chassis, structure issues account for 4.2% of MOT failures on 1990 Mercedes 280 G Wagon 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.

Noise, emissions and leaks — 2.8% of failures

Noise, emissions and leaks issues account for 2.8% of MOT failures on 1990 Mercedes 280 G Wagon 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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