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M4 CNX

1999 Porsche Boxster

Silver Petrol 2500cc
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MOT Status

Valid
Expires15 Dec 2026
Tests20 (16 pass, 4 fail)
Pass rate80%

Mileage

59,727 mi
Last recorded59,727 miles
Recorded on10 Dec 2025
Typical for 1999 Porsche Boxster75,340 mi

Below or average mileage for this year

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

RegistrationM4 CNX
MakePorsche
ModelBoxster
Year1999
ColourSilver
Fuel typePetrol
Engine2,500cc

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

16 pass 4 fail
Pass 10 Dec 2025 59,727 miles
Pass 16 Dec 2024 55,379 miles

Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Nearside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Rear Inner Brake pipe clips or supports missing, pipe adequately supported (1.1.11 (d) (i))

Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

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

Rear Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))

Fail 3 Dec 2024 55,316 miles

Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))

Front Registration plate does not conform to the specified requirements (0.1 (d))

Rear Registration plate does not conform to the specified requirements (0.1 (d))

Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Nearside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Front Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Rear Inner Brake pipe clips or supports missing, pipe adequately supported (1.1.11 (d) (i))

Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

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

Rear Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))

Pass 1 Dec 2023 53,689 miles

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

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

Fail 14 Nov 2023 53,669 miles

Brake pedal has insufficient reserve travel (1.1.2 (a))

Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))

Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))

Nearside Rear Brake pipe excessively corroded (1.1.11 (c))

Offside Rear Brake pipe excessively corroded (1.1.11 (c))

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

Nearside Brake pipe leaking on a hydraulic braking system front to rear pipes (1.1.11 (b) (ii)) DANGEROUS

Nearside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) DANGEROUS

Offside Rear Service brake has no recorded effort at a wheel (1.2.1 (a) (ii)) DANGEROUS

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

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

Pass 2 Dec 2022 52,442 miles

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

Nearside Rear Brake pipe corroded, covered in grease or other material corroded surface rust (1.1.11 (c))

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

Pass 16 Nov 2021 51,078 miles
Pass 17 Nov 2020 50,749 miles
Pass 18 Nov 2019 50,156 miles
Pass 20 Nov 2018 49,711 miles
Pass 13 Nov 2017 48,981 miles
Fail 13 Nov 2017 48,981 miles

Nearside Front Headlamp aim too high (1.8)

Offside Front Headlamp aim too high (1.8)

Pass 23 Nov 2016 48,318 miles
Pass 24 Nov 2015 47,607 miles
Pass 13 Dec 2014 46,687 miles
Fail 2 Jun 2009 42,121 miles

Offside Registration plate lamp not working (1.1.5c)

Pass 2 Jun 2009 42,121 miles
Pass 1 Jul 2008 37,997 miles
Pass 28 Jun 2007 36,062 miles
Pass 26 Jun 2006 32,468 miles

How Reliable is the Porsche Boxster?

Based on 726,695 MOT tests across 46,886 vehicles.

82.8%
Pass Rate
2,475
Miles/Year
29
Year Lifespan
46,886
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 19,504
Brake pipe excessively corroded 6,317
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits 5,538
brake disc excessively pitted 5,177
position lamp(s) not working 5,126
Full Porsche Boxster reliability report

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M4 CNX is a 1999 Porsche Boxster in Silver with a 2,500cc petrol engine. This vehicle has been through 20 MOT tests with a personal pass rate of 80%.

Across all 1999 Porsche Boxster models, the average MOT pass rate is 77.2% with a typical mileage of 75,340 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Porsche Boxster fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 19,504 recorded failures. If you're considering buying M4 CNX, it's worth having these areas checked by a mechanic before committing.

The Porsche Boxster typically stays on UK roads for around 29 years. At 27 years old, this Porsche Boxster is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of M4 CNX?

You can check the full history of M4 CNX by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was M4 CNX registered?

M4 CNX is a 1999 Porsche Boxster, first registered on 31 December 1999.

Is M4 CNX safe to buy?

The MOT history for M4 CNX shows 20 tests with a 80% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does M4 CNX 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 M4 CNX. 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.