Mercedes Benz

Mercedes Benz 308 D (1999)

963 real MOT outcomes analysed • 66.1% first-time pass rate

1999 Mercedes Benz 308 D

CarHunch analysed 963 real MOT records for the 1999 Mercedes Benz 308 D. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

This 1999 Mercedes-Benz 308D is a reliability worry: it passes MOT on first attempt just 66% of the time versus the UK average of 80%, and a concerning 32.5% have suffered dangerous defects at some point. The diesel engine itself doesn't explain the gap—it passes at the same 66% rate—so the problem is fundamental to the model's age and condition.

These vans have typically covered 155,000 miles by MOT time, which is reasonable for their age, but they average 3.6 failures and a hefty 17.5 advisories per test, suggesting widespread wear and deferred maintenance. If you're considering one, budget for immediate remedial work and expect ongoing repair costs; get a pre-purchase inspection that specifically targets brakes, suspension, and fuel systems, where the dangerous defects are likely hiding.

The 1999 Mercedes Benz 308 D has a below-average first-time pass rate (66.1% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
66.1%
UK average ~80%
Below average
Dangerous (ever)
32.5%
At least once in MOT history
Check this vehicle
Avg failures / car
3.64
Over 10 tests on record
High
Typical mileage
155k
Middle half: 127k–192k
For context
⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.
🔧 Expect consumable spend. An average of 17.5 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 963 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Buyer beware — pass it on

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 963 Mercedes Benz 308 D cars.

UK

Before you buy a 1999 Mercedes Benz 308 D

Based on MOT data from 963 vehicles — here's what to check.

  • 📋 Check the full MOT history. 32.5% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (100%) 962 66.1% 3.64

Colour Breakdown

Based on 12,859 Mercedes Benz 308 D vehicles registered in the UK — across all years. From DVLA registration records.

White 72.8%
9,355
Blue 11.4%
1,467
Red 4.7%
603
Green 4.5%
576
Yellow 2.4%
312
Black 1.2%
155
Grey 0.8%
108
Silver 0.7%
87
Cream 0.6%
71
Orange 0.4%
56
Multi-colour 0.3%
43
Maroon 0.2%
26

Mileage Distribution

Most 1999 Mercedes Benz 308 D vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

155,219
typical
126,506
low mileage
192,134
high mileage

Half of all 1999 Mercedes Benz 308 D vehicles fall between 126,506 and 192,134 miles.

Is the mileage you're seeing normal?
Under 126,506 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
126,506–192,134 miles — normal for age. This is where most 1999 Mercedes Benz 308 Ds sit.
Over 259,380 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1999 Mercedes Benz 308 D — Still on the Road

Numbers are thinning — 13% of 1999 Mercedes Benz 308 Ds are still active.

Numbers are declining — 30 vehicles still getting MOTs in 2025 (13% of peak).

233 30 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

10
Avg MOT tests per vehicle
3.64
Avg failures per vehicle
17.5
Avg advisories per vehicle
Other model years — Mercedes Benz 308 D: All 308 D years → Which year to buy? →
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Buyer beware — pass it on