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A366 UNH

1983 Mercedes-benz Sl

Red Petrol 2746cc
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MOT Status

Valid
Expires13 Oct 2026
Tests16 (10 pass, 6 fail)
Pass rate62.5%

Mileage

230,229 mi
Last recorded230,229 miles
Recorded on14 Oct 2025
Typical for 1983 Mercedes-benz Sl93,251 mi

Significantly above average — investigate

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

RegistrationA366 UNH
MakeMercedes-benz
ModelSl
Year1983
ColourRed
Fuel typePetrol
Engine2,746cc

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

10 pass 6 fail
Pass 14 Oct 2025 230,229 miles

Front Exhaust has a minor leak of exhaust gases (6.1.2 (a))

Nearside Steering box slight play between sector shaft and the drop arm Drop arm has slight play (2.1.3 (a) (ii))

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

Tyre slightly damaged/cracking or perishing All 4 tyres perishing (5.2.3 (d) (ii))

Pass 11 Jul 2022 229,663 miles

Front Integral body structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Front Integral body structure is repaired but structural rigidity is not significantly reduced (6.1.1 (d) (i))

Nearside Rear Integral body structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Offside Rear Integral body structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Offside Rear Wheel bearing has slight play (5.1.3 (a) (i))

Pass 13 Jul 2021 229,636 miles

Front Integral body structure or chassis corroded within 30cm of a mounting, but not seriously affecting overall security (6.2.2 (d) (i))

Nearside Rear Integral body structure or chassis corroded within 30cm of a mounting, but not seriously affecting overall security (6.2.2 (d) (i))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

Offside Front Wheel bearing slightly noisy (5.1.3 (b) (i))

Offside Rear Integral body structure or chassis corroded within 30cm of a mounting, but not seriously affecting overall security (6.2.2 (d) (i))

Offside Rear Shock absorbers has a reduced damping effect (5.3.2 (d))

Offside Rear Shock absorbers light misting of oil or has limited damping effect (5.3.2 (b))

Offside Rear Wheel bearing has slight play (5.1.3 (a) (i))

Pass 16 Jul 2020 228,467 miles

Nearside Rear Suspension component mounting prescribed area is corroded but not considered excessive boot floor (5.3.6 (a) (i))

Offside Front Suspension component mounting prescribed area is corroded but not considered excessive panel under bonnet (5.3.6 (a) (i))

Offside Rear Suspension component mounting prescribed area is corroded but not considered excessive boot floor (5.3.6 (a) (i))

Fail 4 Jul 2020 228,455 miles

Nearside Front Lower Shock absorbers insecurely attached (5.3.2 (a) (i))

Nearside Rear Inner Suspension component mounting prescribed area excessively corroded significantly reducing structural strength wheelarch (5.3.6 (a) (i))

Nearside Rear Suspension component mounting prescribed area is corroded but not considered excessive boot floor (5.3.6 (a) (i))

Offside Front Suspension component mounting prescribed area is corroded but not considered excessive panel under bonnet (5.3.6 (a) (i))

Offside Front Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))

Offside Rear Suspension component mounting prescribed area is corroded but not considered excessive boot floor (5.3.6 (a) (i))

Fail 29 Sep 2015 228,434 miles

Hazard warning lamps inoperative all (1.4.B.1b)

Hazard warning switch faulty (1.4.B.1d)

Nearside Rear Suspension component mounting prescribed area is excessively corroded inner sill (2.4.A.3)

Nearside Rear Suspension component mounting prescribed area is excessively corroded inner wing (2.4.A.3)

Nearside rear brake binding (3.7.B.1)

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

Offside Rear Suspension component mounting prescribed area is excessively corroded inner wing (2.4.A.3)

Rear Body has a sharp edge caused by corrosion bumper (6.1.C.1)

Body has slight corrosion nearside rear inner & outer panel (6.1.B.2)

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

oil leak

Pass 12 Dec 2013 227,368 miles
Fail 6 Dec 2013 227,340 miles

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

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

Fuel system component leaking (7.2.3) DANGEROUS

Oil leak

n/s/r brake binding slightly

Pass 19 Nov 2012 226,480 miles

Oil leak

Pass 20 Dec 2011 225,202 miles
Fail 9 Dec 2011 225,134 miles

Fuel system component leaking (7.2.3)

Nearside Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)

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

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

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

Front number plate cracked.

Inner surface of rear brake discs corroded.

O/s windscreen washer jet inoperative.

O/s windscreen wiper blade split.

O/s/f & n/s/f headlamps damaged.

Underbody fuel pipes corroded.

Pass 11 Dec 2010 220,600 miles

Intermittent fault on n /side in d tell tail

Nearside Rear Anti-roll bar attachment bracket/mounting corroded but its strength is not seriously reduced (2.4.G.1)

Pass 23 Jun 2009 220,165 miles

rear bumper nearside rubber insert been taped on

Fail 20 Jun 2009 220,147 miles

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

Nearside Headlamp not working on main beam (1.7.5a)

Nearside Rear Body insecure and dangerous to other road users (6.1.B.1b)

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

Offside rear parking brake recording little or no effort (3.7.B.6a)

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

Pass 28 Apr 2008 218,864 miles
Fail 14 Mar 2008 218,797 miles

Inner Front Exhaust has a major leak of exhaust gases (7.1.2)

Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Nearside Front Dipswitch operation does not deflect all main beam headlamps to make them dipped beams (1.7.4b)

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

How Reliable is the Mercedes-benz Sl?

Based on 528,820 MOT tests across 35,553 vehicles.

83.4%
Pass Rate
2,023
Miles/Year
43
Year Lifespan
35,553
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 8,801
Tyre has ply or cords exposed 3,812
Brake pipe excessively corroded 3,463
Tyre has a cut in excess of the requirements deep enough to reach the ply or cords 3,077
Windscreen wiper does not clear the windscreen effectively 2,767
Full Mercedes-benz Sl reliability report

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A366 UNH is a 1983 Mercedes-benz Sl in Red with a 2,746cc petrol engine. This vehicle has been through 16 MOT tests with a personal pass rate of 62.5%.

Across all 1983 Mercedes-benz Sl models, the average MOT pass rate is 75.9% with a typical mileage of 93,251 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 Mercedes-benz Sl fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 8,801 recorded failures. If you're considering buying A366 UNH, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz Sl typically stays on UK roads for around 43 years. At 43 years old, this Mercedes-benz Sl is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of A366 UNH?

You can check the full history of A366 UNH by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was A366 UNH registered?

A366 UNH is a 1983 Mercedes-benz Sl, first registered on 25 November 1983.

Is A366 UNH safe to buy?

The MOT history for A366 UNH shows 16 tests with a 62.5% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does A366 UNH 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 A366 UNH. 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.