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J439 BYB

1991 Mazda MX-5

Red Petrol 1597cc
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MOT Status

Valid
Expires12 Aug 2027
Tests20 (11 pass, 9 fail)
Pass rate55%

Mileage

138,269 mi
Last recorded138,269 miles
Recorded on13 Aug 2026
Typical for 1991 Mazda MX-5114,279 mi

Above average mileage for this year

4 checks still locked for this Mazda
Stolen
Finance
Write-off
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Vehicle Details

RegistrationJ439 BYB
MakeMazda
ModelMX-5
Year1991
ColourRed
Fuel typePetrol
Engine1,597cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

11 pass 9 fail
Pass 13 Aug 2026 138,269 miles
Fail 11 Aug 2026 138,264 miles

Brake pedal anti-slip provision missing (1.1.2 (c))

Nearside Rear Lower Suspension arm pin or bush excessively worn Marked with yellow paint (5.3.4 (a) (i))

Nearside Rear Upper Suspension arm pin or bush excessively worn Marked with yellow paint (5.3.4 (a) (i))

Offside Rear Lower Suspension arm pin or bush excessively worn Marked with yellow paint (5.3.4 (a) (i))

Offside Rear Upper Suspension arm pin or bush excessively worn Marked with yellow paint (5.3.4 (a) (i))

Rear Brakes imbalanced across an axle Axle 2 (1.2.1 (b) (i))

Offside Rear Service brake effort low

Pass 24 Jun 2016 138,246 miles

Exhaust has a minor leak of exhaust gases (7.1.2)

Nearside Rear tyre cracking

Offside Rear tyre cracking

Fail 23 Jun 2016 138,246 miles

Battery insecure (1.9.1)

Nearside Front Suspension component mounting prescribed area is excessively corroded inner wing between bulkhead and strut top (2.4.A.3)

Nearside Seat belt anchorage prescribed area is excessively corroded outer sill (5.2.6)

Offside Front Suspension component mounting prescribed area is excessively corroded inner wing between bulk head and strut top (2.4.A.3)

Offside Headlamp aim too high and too far to the right. (1.8)

Offside Rear Direction indicator not working (1.4.A.2c)

Exhaust has a minor leak of exhaust gases (7.1.2)

Nearside Rear tyre cracking

Offside Rear tyre cracking

Pass 16 Jun 2015 137,362 miles
Fail 9 Jun 2015 137,362 miles

Nearside Headlamp aim too high (1.8)

Nearside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Offside Inner Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Offside Outer Front Seat belt anchorage prescribed area is excessively corroded (5.2.6)

Offside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Pass 23 May 2014 134,084 miles

Front registration plate deteriorated but not likely to be misread (6.3.1d)

Nearside Rear Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Nearside Rear coil spring corroded (2.4.C.1b)

Offside Rear Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Rear coil spring corroded (2.4.C.1b)

Oil leak

Rear Sub-frame corroded but not seriously weakened (2.4.G.1)

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

nearside rear brake disc rusty

nearside rear tyre perishing

offside front brake disc rusty

Fail 22 May 2014 134,084 miles

Nearside rear brake binding (3.7.B.1)

Offside front brake binding (3.7.B.1)

Power steering fluid level below minimum (2.3.1)

Service brake: efficiency below requirements (3.7.B.7)

Front registration plate deteriorated but not likely to be misread (6.3.1d)

Nearside Rear Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Nearside Rear coil spring corroded (2.4.C.1b)

Offside Rear Lower Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Rear coil spring corroded (2.4.C.1b)

Oil leak

Rear Sub-frame corroded but not seriously weakened (2.4.G.1)

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

nearside rear brake disc rusty

nearside rear tyre perishing

offside front brake disc rusty

Fail 7 Jan 2014 134,069 miles

Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Nearside Windscreen wiper blade insecure (8.2.2)

Offside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

Offside Rear Brake pad(s) less than 1.5 mm thick (3.5.1g)

Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Offside Seat belt anchorage prescribed area is excessively corroded (5.2.6)

Offside Windscreen wiper blade insecure (8.2.2)

Power steering pipe(s) or hose(s) leaking from a joint (2.3.3b)

Nearside Front Brake pad(s) wearing thin (3.5.1g)

Offside Front Brake pad(s) wearing thin (3.5.1g)

slight corrosion throughout underside of vehicle.

Pass 11 Jan 2013 132,012 miles

Nearside Rear Brake pad(s) wearing thin (3.5.1g)

Offside Rear Brake pad(s) wearing thin (3.5.1g)

slight corrosion throughout underside of vehicle.

Fail 10 Jan 2013 132,012 miles

Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Nearside Rear Brake pad(s) wearing thin (3.5.1g)

Offside Rear Brake pad(s) wearing thin (3.5.1g)

offside front tyre perished.

slight corrosion throughout underside of vehicle.

Pass 9 Jan 2012 130,469 miles

Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Rear coil spring corroded (2.4.C.1b)

Pass 10 Jan 2011 129,417 miles

Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Pass 9 Jan 2010 128,146 miles
Fail 15 Dec 2009 128,145 miles

Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Pass 10 Dec 2008 126,721 miles
Pass 14 Dec 2007 125,331 miles
Fail 14 Dec 2007 125,331 miles

Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Nearside Headlamp aim too far to the right (1.8)

Offside Headlamp aim too far to the right (1.8)

Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Rear Brake pipe excessively corroded (3.6.B.2c)

Fail 14 Dec 2006 122,184 miles

Front registration plate deteriorated (6.3.1d)

Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Pass 14 Dec 2006 122,184 miles

Nearside Front Tyre worn close to the legal limit (4.1.E.1)

How Reliable is the Mazda MX-5?

Based on 2,502,760 MOT tests across 160,823 vehicles.

76.5%
Pass Rate
2,964
Miles/Year
36
Year Lifespan
160,823
On UK Roads

Top MOT Failure Points

Seat belt anchorage prescribed area is excessively corroded 44,475
Tyre tread depth below requirements of 1.6mm 41,962
Windscreen wiper does not clear the windscreen effectively 35,980
Parking brake: efficiency below requirements 33,281
Brake pad(s) less than 1.5 mm thick 32,722
Full Mazda MX-5 reliability report

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J439 BYB is a 1991 Mazda MX-5 in Red with a 1,597cc petrol engine. This vehicle has been through 20 MOT tests with a personal pass rate of 55%.

Across all 1991 Mazda MX-5 models, the average MOT pass rate is 68.4% with a typical mileage of 114,279 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Mazda MX-5 fails its MOT is seat belt anchorage prescribed area is excessively corroded, accounting for 44,475 recorded failures. If you're considering buying J439 BYB, it's worth having these areas checked by a mechanic before committing.

The Mazda MX-5 typically stays on UK roads for around 36 years. At 35 years old, this Mazda MX-5 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of J439 BYB?

You can check the full history of J439 BYB by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was J439 BYB registered?

J439 BYB is a 1991 Mazda MX-5, first registered on 9 November 1991.

Is J439 BYB safe to buy?

The MOT history for J439 BYB shows 20 tests with a 55% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does J439 BYB have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on J439 BYB. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.