Bentley Turbo (1988)

132 real MOT outcomes analysed • 75.8% first-time pass rate

1988 Bentley Turbo

CarHunch analysed 132 real MOT records for the 1988 Bentley Turbo. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

The 1988 Bentley Turbo falls slightly below the UK average with a 75.8% first-time pass rate against the national 80%, which is a minor concern—but the real red flag is that 40.2% of these cars have been flagged for dangerous defects at some point, well above what you'd expect for a vehicle of this age and rarity. This suggests systemic issues that go beyond normal wear, likely rooted in the complexity and age of the turbo system and fuel injection technology.

With a median mileage of 95,219 miles for a car now 36 years old, these examples have been driven relatively conservatively, yet they're still averaging nearly 3 failures and over 12 advisories per test—a high advisory count that points to cumulative decay across multiple systems rather than one specific problem. If you're serious about buying one, budget for a thorough pre-purchase inspection focusing on the turbo unit, fuel system integrity, and brake condition, as these appear to be chronic weak points in the cohort.

We have limited data for the 1988 Bentley Turbo — treat the figures below as indicative rather than definitive.

⚠️ Over 1 in 5 of these cars 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
75.8%
UK average ~80%
Around average
Dangerous (ever)
40.2%
At least once in MOT history
Check this vehicle
Avg failures / car
2.98
Over 12.6 tests on record
High
Typical mileage
95k
Middle half: 70k–113k
For context

These stats describe 132 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.

What tends to go wrong

Based on 132 cars. % = share of cohort with at least one match (advisories + failures combined).

~1 in 3 Brake wear
Parking brake: efficiency below requirements (107.8%) · Offside Front Brake pipe slightly corroded (32.8%) · Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (29.9%) · …
💡 Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
~1 in 3 Other issues
Oil leak (50.9%) · Oil leak, but not excessive (33.4%)
~1 in 3 Tyre wear
Nearside Front Tyre worn close to the legal limit (28.2%) · Offside Front Tyre worn close to the legal limit (24.7%) · Offside Rear Tyre worn close to the legal limit (21.2%) · …
💡 Budget for a full set — on a vehicle this age, tyres are expected consumables. A used-car inspection will confirm how much is left.
~1 in 6 Suspension & steering
Nearside Rear wheel bearing has slight play (19.2%) · Power steering component(s) has slight seepage from a component (17.4%) · Offside Front wheel bearing has slight play (17.4%)
💡 Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Data covers a 3-year window centred on 1988. Counts include advisories and failures.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 132 Bentley Turbo cars.

UK

Before you buy a 1988 Bentley Turbo

Based on MOT data from 132 vehicles — here's what to check.

  • 📋 Check the full MOT history. 40.2% 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
Petrol (98%) 129 76% 2.94

Mileage Distribution

Most 1988 Bentley Turbo 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.

95,219
typical
70,106
low mileage
112,741
high mileage

Half of all 1988 Bentley Turbo vehicles fall between 70,106 and 112,741 miles.

Is the mileage you're seeing normal?
Under 70,106 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.
70,106–112,741 miles — normal for age. This is where most 1988 Bentley Turbos sit.
Over 152,200 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1988 Bentley Turbo — Still on the Road

Numbers are thinning — 46% of 1988 Bentley Turbos are still active.

Numbers are declining — 32 vehicles still getting MOTs in 2025 (46% of peak).

69 32 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

12.6
Avg MOT tests per vehicle
2.98
Avg failures per vehicle
12.1
Avg advisories per vehicle
Other model years — Bentley Turbo: All Turbo years → Which year to buy? →
1987 1989 1990 1991 1992 1994 1995 1996 1997

Or browse all models: Bentley →

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Compare with another model

See how the 1988 Bentley Turbo stacks up against a rival.

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