What goes wrong, what it costs, and what to check before you buy a used Bentley Turbo.
The Bentley Turbo occupies a niche position on the UK market.
We track 5 known issues across the Bentley Turbo range, including 1 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Bentley Turbo? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
T-Series (1982–1997) — Engine options included the 6.75L V8 Turbo. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Subframe structural corrosion (£1,500–£3,000 to address).
The steel subframes supporting the suspension mounting points are subject to severe corrosion on T-Series Bentleys, particularly around the rear suspension pickup points. UK road salt and the car's low ride height create ideal conditions for moisture retention and accelerated rust. This is a structural safety issue that can cause suspension collapse without warning.
Subframe failure can cause complete suspension collapse, loss of vehicle control, and potential injury to occupants. The car is not safe to drive with significant subframe corrosion. Professional structural welding repairs typically cost £2,000-£5,000 depending on extent of damage.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
T-Series Bentleys develop multiple fluid leaks from engine, transmission, power steering, and hydraulic systems due to aging seals and gaskets. The complex multi-fluid architecture means leaks often affect multiple systems simultaneously.
Multiple fluid leaks create environmental hazards and can lead to system failures. Engine oil loss risks bearing damage, power steering loss affects safety, and transmission leaks cause shifting problems. Comprehensive seal replacement typically costs £1,500-£4,000 depending on systems affected.
Check the oil level before the engine is started. Ask the seller how often they top up the oil between services. After a test drive, check the level again and look behind the car for blue or grey exhaust smoke under acceleration.
The hydraulic power steering system on T-Series Bentleys is prone to pump failure, rack leaks, and hose deterioration. The system operates at high pressure and is sensitive to fluid contamination and level drops. Given the car's substantial weight (over 2 tonnes), power steering loss significantly affects vehicle control and safety. MOT data shows power steering failures at 28 times the fleet average.
Power steering loss makes the heavy Bentley extremely difficult to manoeuvre, particularly at low speeds and during parking. This creates a significant safety risk. Pump replacement costs £800-£1,500, while rack replacement can cost £2,000-£3,500.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
Wheel bearings on T-Series Bentleys wear prematurely due to the vehicle's substantial weight and age-related seal degradation. The front bearings are particularly susceptible given the weight distribution and steering loads. Failed bearings create safety risks through wheel wobble and potential wheel detachment. MOT data shows bearing failures at 25.8 times the fleet average.
Worn wheel bearings can cause wheel wobble, steering instability, and in extreme cases, wheel detachment leading to loss of control. The car should not be driven with severely worn bearings. Replacement costs £300-£600 per corner including labour.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The mechanical handbrake system on T-Series Bentleys suffers from cable stretch, adjuster wear, and rear brake shoe deterioration over time. The system's effectiveness degrades gradually, often going unnoticed until MOT testing. MOT data shows handbrake efficiency failures at up to 10.2 times the fleet average across multiple mileage bands.
Poor handbrake efficiency fails MOT requirements and creates safety risks on slopes. The car may roll when parked on inclines. Cable and adjuster replacement typically costs £200-£400, while rear brake shoe replacement adds £300-£500.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
For the full breakdown of all 5 tracked issues with repair costs, see the Bentley Turbo common problems page.
Based on 6k real DVSA MOT tests, the Bentley Turbo fails more often than average on several items. The biggest outlier is fluid leak at 133x the fleet average, followed by coil springs broken (45x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Bentley Turbo MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 6k miles) typically costs £150–£250 at an independent garage.
See the full Bentley Turbo service schedule for every interval and cost breakdown.
The Bentley Turbo has some well-documented weak points, including 1 safety-critical issue that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Bentley Turbo, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known Bentley Turbo issues. We are not affiliated with any source listed.