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J758 JKN

1991 Porsche 911

Blue Petrol 3600cc
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MOT Status

Valid
Expires29 Nov 2026
Tests23 (20 pass, 3 fail)
Pass rate87%

Mileage

133,154 mi
Last recorded133,154 miles
Recorded on19 Nov 2025
Typical for 1991 Porsche 91193,444 mi

Significantly above average — investigate

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

RegistrationJ758 JKN
MakePorsche
Model911
Year1991
ColourBlue
Fuel typePetrol
Engine3,600cc

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

20 pass 3 fail
Pass 19 Nov 2025 133,154 miles

Engine oil leak

Front Brake hose has slight corrosion to ferrule both (1.1.12 (f) (i))

Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

Windscreen damaged but not adversely affecting driver's view small crack (3.2 (a) (i))

Pass 28 Nov 2024 132,730 miles

Engine oil leak

Front Brake hose has slight corrosion to ferrule both sides (1.1.12 (f) (i))

Front Registration plate deteriorated but not likely to be misread (0.1 (b))

Pass 27 Nov 2023 131,908 miles

Front Registration plate deteriorated but not likely to be misread (0.1 (b))

Slight engine oil leak.

Pass 24 Nov 2022 131,239 miles

Nearside Front Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Offside Front Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Oil leak, but not excessive (8.4.1 (a) (i))

Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))

Pass 8 Nov 2021 129,643 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 24 Nov 2020 127,990 miles

Front Brake disc worn, but not excessively (1.1.14 (a) (i))

Offside Front Brake pad(s) wearing thin (1.1.13 (a) (ii))

Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 30 May 2019 123,933 miles
Fail 26 Apr 2019 123,910 miles

Nearside Front Position lamp not working (4.2.1 (a))

Service brake efficiency below requirements (1.2.2 (a) (i))

Oil leaking continuously from engine posing a serious risk to road safety (8.4.1 (a) (ii)) DANGEROUS

Nearside Rear Inner Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Pass 23 Apr 2018 121,083 miles

Bad oil leaks

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

Pass 18 Apr 2017 117,694 miles

Nail in nearside rear tyre

Oil leak

Pass 13 Apr 2016 113,452 miles

Nearside Rear Inner drive shaft boot is split

Oil leak

Pass 19 Mar 2015 108,920 miles

Nearside Front Shock absorber has a light misting of oil (2.7.3)

Oil leak

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

Pass 15 Apr 2014 103,990 miles

Oil leak

Pass 25 Mar 2013 96,117 miles
Pass 18 Apr 2012 96,026 miles
Pass 1 Mar 2011 92,135 miles

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

Offside Front Shock absorber has a light misting of oil (2.7.3)

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

Pass 15 Mar 2010 90,620 miles
Pass 21 Feb 2009 88,210 miles
Pass 18 Feb 2008 85,727 miles
Pass 21 Feb 2007 82,538 miles
Fail 21 Feb 2007 82,538 miles

Horn not working (1.6.2a)

Offside Front Shock absorber has a light misting of oil (2.7.3)

Pass 3 Mar 2006 80,120 miles
Fail 27 Feb 2006 80,093 miles

Nearside Steering rack gaiter split (2.2.D.2d)

Offside Windscreen washer provides insufficient washer liquid (8.2.3)

Offside Steering rack gaiter deteriorated (2.2.D.2d)

How Reliable is the Porsche 911?

Based on 977,057 MOT tests across 73,061 vehicles.

85.2%
Pass Rate
1,867
Miles/Year
47
Year Lifespan
73,061
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 20,869
position lamp(s) not working 7,590
Windscreen washer provides insufficient washer liquid 6,439
Headlamp aim too high 6,432
Brake pipe excessively corroded 5,466
Full Porsche 911 reliability report

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J758 JKN is a 1991 Porsche 911 in Blue with a 3,600cc petrol engine. This vehicle has been through 23 MOT tests with a personal pass rate of 87%.

Across all 1991 Porsche 911 models, the average MOT pass rate is 81.3% with a typical mileage of 93,444 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Porsche 911 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 20,869 recorded failures. If you're considering buying J758 JKN, it's worth having these areas checked by a mechanic before committing.

The Porsche 911 typically stays on UK roads for around 47 years. At 35 years old, this Porsche 911 is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of J758 JKN?

You can check the full history of J758 JKN by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was J758 JKN registered?

J758 JKN is a 1991 Porsche 911, first registered on 28 August 1991.

Is J758 JKN safe to buy?

The MOT history for J758 JKN shows 23 tests with a 87% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does J758 JKN 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 J758 JKN. 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.