Generations
A70 — Third Generation
1986–1993
3.0 Turbo, 3.0 N/A
A80 — Fourth Generation
1993–2002
3.0 Twin Turbo, 3.0 N/A
A90 — Fifth Generation
2019–2024
2.0 Turbo, 3.0 Turbo
Top issues to watch for
The most serious Toyota Supra problems ranked by severity. We track 5 known issues — here are the ones you need to know about first.
Dangerous
Subframe mounting point corrosion (A80)
The rear subframe mounting points on A80 Supras suffer from severe structural corrosion where the subframe bolts attach to the body shell. This is a widespread issue affecting the load-bearing structure within the prescribed MOT inspection area. The problem is particularly severe on UK cars due to road salt exposure and the car's low ride height trapping moisture and debris around the mounting points. MOT data shows this model fails at 25.8 times the national average for subframe structural defects, with the issue appearing consistently across all recent years and worsening over time.
What happens if ignoredIf the subframe mounting points fail completely, the rear suspension can separate from the body shell, causing immediate loss of control and potential fatal accident. Even partial failure creates dangerous handling unpredictability. Proper structural repair requires body shell cutting and welding by a specialist, typically costing £3,000-£6,000. Cars with advanced corrosion may be beyond economical repair.
Independent garage
£2,500–£4,000
Specialist
£3,000–£6,000
Main dealer
£4,000–£8,000
Parts only
£200–£500
Major
Suspension component corrosion (A80)
The A80 Supra's suspension components, particularly the rear control arms, trailing arms, and associated bushes, suffer from accelerated corrosion due to the car's low ground clearance and design that traps road salt and moisture. MOT data shows failures at 6.5 times the national average, with the trend worsening over recent years. Unlike many sports cars, the Supra's multi-link rear suspension has numerous steel components in close proximity to the road surface, making corrosion inevitable on UK cars.
What happens if ignoredCorroded suspension components can fail suddenly, causing loss of vehicle control. Even minor corrosion leads to premature bush and bearing wear, requiring more frequent replacement of expensive components. Complete replacement of rear suspension arms typically costs £1,500-£2,500 plus alignment.
Independent garage
£800–£1,500
Specialist
£1,200–£2,500
Main dealer
£2,000–£3,500
Parts only
£400–£800
Major
Brake caliper binding (A80)
A80 Supras suffer from brake caliper seizure at 4.3 times the national average rate, particularly affecting higher mileage examples. The large four-piston front calipers are prone to corrosion of the piston seals and guide pins, especially when brake fluid changes are missed. The problem is compounded by the car's extended periods of storage and infrequent use typical of UK examples, allowing moisture to accumulate in the brake system.
What happens if ignoredSeized brake calipers cause uneven braking, increased stopping distances, and potential loss of control during emergency braking. The binding brake generates excessive heat that can warp discs, damage pads, and in extreme cases cause brake fade or fire. Replacement of front calipers typically costs £600-£1,200 including discs and pads.
Independent garage
£400–£800
Specialist
£600–£1,200
Main dealer
£800–£1,500
Parts only
£200–£400
Minor
BMW engine issues (A90)
The A90 Supra uses BMW's B58 3.0-litre and B48 2.0-litre turbocharged engines, which can develop issues with the charge air cooler system and associated sensors. The charge cooler pump, which circulates coolant through the intercooler system, can fail prematurely on some examples. This is merged from two expert database entries covering BMW-sourced component reliability issues. While generally robust engines, these BMW powertrains require proper diagnostics when fault codes appear, particularly those related to boost pressure and intake air temperature management.
What happens if ignoredCharge cooler pump failure can lead to reduced engine power and potential overheating of intake air, causing the engine management system to reduce power output. Complete failure requires pump replacement and system bleeding. Early diagnosis through fault code reading prevents more serious damage to turbocharger or engine internals.
Independent garage
£400–£600
Specialist
£500–£800
Main dealer
£600–£1,000
Parts only
£200–£350
1 more known issues tracked
Including wear items, electrical niggles, and generation-specific problems.
MOT failure hotspots
Based on DVSA MOT test data. These are the items where the Toyota Supra fails at a significantly higher rate than the average car.
Subframe bushes or mounts worn
Suspension · 80-100k miles
MOT failure rate: 26x the fleet average
Sample: 224 tests
Electrical wiring fault
Lights & Electrics · 100-120k miles
MOT failure rate: 17x the fleet average
Sample: 152 tests
Seat mounting fault
Seatbelts & Airbags · 150k+ miles
MOT failure rate: 12x the fleet average
Sample: 185 tests
Structural corrosion
Bodywork · 80-100k miles
MOT failure rate: 10x the fleet average
Sample: 131 tests
ABS fault
Suspension · 60-80k miles
MOT failure rate: 10x the fleet average
Sample: 115 tests
Suspension component damaged or corroded
Suspension · 60-80k miles
MOT failure rate: 7.7x the fleet average
Sample: 110 tests
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Related
Toyota Supra reliability FAQs
What are the most common problems with the Toyota Supra?
The Toyota Supra has 5 known issues across 4 severity levels. The most serious are: Subframe mounting point corrosion (A80).
Is the Toyota Supra reliable?
The Toyota Supra has 1 dangerous and 2 major known issues. Most can be avoided with a thorough pre-purchase check and full service history.
How much does it cost to fix Toyota Supra problems?
Repair costs range widely. The most significant issue (Subframe mounting point corrosion (A80)) costs £2,500–£4,000 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.
Which Toyota Supra generation is most reliable?
The A70 (1986–1993) has the fewest dangerous issues (0). However, condition and service history matter more than generation — a well-maintained earlier car can be more reliable than a neglected newer one.