Mercedes E320 CDI Avantgarde Auto (2005)
2005 Mercedes E320 CDI Avantgarde Auto
CarHunch analysed 177 real MOT records for the 2005 Mercedes E320 CDI Avantgarde Auto.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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This 2005 E320 CDI has a first-time MOT pass rate of just 52.4%, well below the UK average of 80%, which is a genuine red flag for reliability. The good news is that no vehicles in this sample have ever recorded a dangerous defect, so safety issues aren't the concern here—instead, expect a higher rate of minor to moderate failures that need fixing.
At nearly 150,000 miles on the clock, these cars are averaging almost one failure per test, suggesting that component wear and maintenance catch-up are routine issues rather than catastrophic problems. If you're considering one, budget for repairs at each MOT and have a pre-purchase inspection by a Mercedes specialist focus on the fuel system, gearbox, and suspension, which typically drive the failures in this age and mileage bracket.
We have limited data for the 2005 Mercedes E320 CDI Avantgarde Auto — treat the figures below as indicative rather than definitive.
These stats describe 177 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.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 177 Mercedes E320 CDI Avantgarde Auto cars.
Before you buy a 2005 Mercedes E320 CDI Avantgarde Auto
Based on MOT data from 177 vehicles — here's what to check.
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Check the full MOT history.
0% 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. -
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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
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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
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (98%) | 173 | 77% | 0.98 |
Mileage Distribution
Most 2005 Mercedes E320 CDI Avantgarde Auto 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.
Half of all 2005 Mercedes E320 CDI Avantgarde Auto vehicles fall between 120,030 and 173,704 miles.
2005 Mercedes E320 CDI Avantgarde Auto — Still on the Road
Numbers are thinning — 35% of 2005 Mercedes E320 CDI Avantgarde Autos are still active.
Numbers are declining — 36 vehicles still getting MOTs in 2025 (35% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
* 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
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