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H311 DEC

1997 Porsche 911

Silver Petrol 3600cc
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MOT Status

Valid
Expires25 Sep 2026
Tests25 (20 pass, 5 fail)
Pass rate80%

Mileage

4,366 mi
Last recorded4,366 miles
Recorded on26 Sep 2025
Typical for 1997 Porsche 91167,758 mi

Below or average mileage for this year

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

RegistrationH311 DEC
MakePorsche
Model911
Year1997
ColourSilver
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 5 fail
Pass 26 Sep 2025 4,366 miles
Pass 10 Dec 2024 1,590 miles
Pass 12 Jul 2023 108,182 miles

Central Oil leak, but not excessive oil leak from engine , several small weeps (8.4.1 (a) (i))

Front front brake discs , slight warp

Nearside Front bump stop split

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

Fail 29 Jun 2023 109,179 miles

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

Front front brake discs work and slightly warped

Nearside nsf bump stop split

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

Oil leak, but not excessive engine oil leaks from several places (8.4.1 (a) (i))

Fail 23 Jun 2023 108,170 miles

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

Front front brake discs work and slightly warped

Nearside nsf bump stop split

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

Oil leak, but not excessive engine oil leaks from several places (8.4.1 (a) (i))

Pass 15 Jun 2022 105,364 miles

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

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

Pass 30 Jun 2021 102,005 miles

Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Offside Front Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Offside Rear Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Under trays fitted obscuring some components

Fail 22 Jun 2021 102,003 miles

Nearside Rear Shock absorbers has a serious fluid leak (5.3.2 (b))

Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Offside Front Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Offside Rear Brake disc worn, pitted or scored, but not seriously weakened inner face (1.1.14 (a) (ii))

Under trays fitted obscuring some components

Pass 22 Jun 2020 99,585 miles

Under trays fitted obscuring some components

Pass 18 Jun 2019 96,718 miles

Under trays fitted obscuring some components

Pass 21 Jun 2018 94,049 miles

Central Driver's view Items removed from driver's view prior to test (3.1 (a) (ii))

Under trays fitted obscuring some components

Pass 23 Jun 2017 91,362 miles

Under trays fitted obscuring some components

Pass 28 Jun 2016 89,093 miles

Items removed from driver's view prior to test ()

Under tray fitted

Pass 24 Jun 2015 86,657 miles

Nearside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

Offside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

Under-trays fitted obscuring some underside components

Pass 25 Jun 2014 83,635 miles

Items removed from driver's view prior to test

Under-trays fitted obscuring some underside components

Pass 25 Jun 2013 80,228 miles

not all brake lines checked

Fail 24 Jun 2013 80,228 miles

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

not all brake lines checked

Pass 29 Jun 2012 77,636 miles
Pass 28 Jun 2011 74,483 miles

Rear Rear fog lamp deteriorated, but still visible from a reasonable distance (1.3.2d)

all brake discs corroded on inside.

both front tyers worn on inside.

o/s/f brake backplate corroded.

Pass 28 Jun 2010 71,071 miles

all brake discs corroded on inside

Pass 30 Jun 2009 66,832 miles
Fail 30 Jun 2009 66,832 miles

Nearside Front Headlamp aim too low and too far to the right. (1.8)

Nearside Rear Registration plate lamp not working (1.1.5c)

Offside Front Headlamp aim too low (1.8)

Pass 27 Jun 2008 61,374 miles
Pass 28 Jun 2007 56,837 miles
Pass 22 Jun 2006 52,173 miles

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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H311 DEC is a 1997 Porsche 911 in Silver with a 3,600cc petrol engine. This vehicle has been through 25 MOT tests with a personal pass rate of 80%.

Across all 1997 Porsche 911 models, the average MOT pass rate is 84.5% with a typical mileage of 67,758 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 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 H311 DEC, 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 29 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 H311 DEC?

You can check the full history of H311 DEC by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was H311 DEC registered?

H311 DEC is a 1997 Porsche 911, first registered on 6 June 1997.

Is H311 DEC safe to buy?

The MOT history for H311 DEC shows 25 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 H311 DEC 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 H311 DEC. 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.