What year Renault 18 Diesel is most reliable?

Based on MOT first-test pass rates, the 1984 Renault 18 Diesel has the highest pass rate at 75.0%, out of 1,087 vehicles tested.

What are the most common Renault 18 Diesel MOT failures?

The most common Renault 18 Diesel MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Renault 18 Diesel — Reliability by Year

3,931 vehicles · MOT data 1981–1985 · first-test pass rates

This page shows MOT first-test pass rates for each year the Renault 18 Diesel was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

Year	Pass rate	Avg mileage	Vehicles
1985	—	—	571
1984	75.0%	152,316 mi	1,087
1983	—	—	970
1982	—	—	654
1981	—	—	649

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