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B1 AOK

1991 Mercedes-benz Sl

Blue Petrol 4973cc
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MOT Status

Expired
Expires7 Sep 2026
Tests20 (14 pass, 6 fail)
Pass rate70%

Mileage

114,957 mi
Last recorded114,957 miles
Recorded on8 Sep 2025
Typical for 1991 Mercedes-benz Sl85,052 mi

Above average mileage for this year

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

RegistrationB1 AOK
MakeMercedes-benz
ModelSl
Year1991
ColourBlue
Fuel typePetrol
Engine4,973cc

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

14 pass 6 fail
Pass 8 Sep 2025 114,957 miles

Central Rear exhaust silencers slightly deteriorated

Nearside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Nearside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Offside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Offside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Rear fuel cap rubber seal slightly deteriorated

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

Rear Sub-frame corroded but not seriously weakened slightly corroded (5.3.3 (b) (i))

Unable to fully inspect due to covers and shields

Fail 8 Sep 2025 114,957 miles

Front Windscreen washer provides insufficient washer liquid (3.5 (a))

Offside Front Position lamp not working (4.2.1 (a) (ii))

Central Rear exhaust silencers slightly deteriorated

Nearside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Nearside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Offside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Offside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Rear fuel cap rubber seal slightly deteriorated

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

Rear Sub-frame corroded but not seriously weakened slightly corroded (5.3.3 (b) (i))

Unable to fully inspect due to covers and shields

Pass 1 Aug 2024 114,484 miles

Nearside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Nearside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Offside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Offside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

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

Rear Sub-frame corroded but not seriously weakened slightly corroded (5.3.3 (b) (i))

Unable to fully inspect due to covers and shields

Fail 1 Aug 2024 114,484 miles

Front Windscreen washer provides insufficient washer liquid (3.5 (a))

Nearside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Nearside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

Offside Front Lower Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Offside Rear Brake hose slightly deteriorated slightly perished (1.1.12 (b) (ii))

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

Offside Rear Coil spring corroded slightly corroded (5.3.1 (b) (i))

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

Rear Sub-frame corroded but not seriously weakened slightly corroded (5.3.3 (b) (i))

Unable to fully inspect due to covers and shields

Pass 25 Jul 2023 114,287 miles

Nearside Front Wheel bearing has slight play very slight (5.1.3 (a) (i))

Nearside Rear Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Nearside Rear Coil spring corroded (5.3.1 (b) (i))

Nearside Rear Suspension arm pin or bush worn but not resulting in excessive movement upper and lower arm bushes deteriorated (5.3.4 (a) (i))

Offside Front Outer Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

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

Offside Rear Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Offside Rear Coil spring corroded (5.3.1 (b) (i))

Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement upper and lower arm bushes deteriorated (5.3.4 (a) (i))

general corrosion to all suspension components

unable to fully inspect due to covers and shields

Pass 5 Aug 2022 113,922 miles

Nearside Front Wheel bearing has slight play very slight (5.1.3 (a) (i))

Nearside Rear Brake hose slightly deteriorated (1.1.12 (b) (ii))

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

Offside Rear Brake hose slightly deteriorated (1.1.12 (b) (ii))

Offside Rear Brake pipe corroded, covered in grease or other material very slightly corroded (1.1.11 (c))

Suspension arm pin or bush worn but not resulting in excessive movement all rear suspension arm bushes slightly deteriorated/perished but not considered excessive or causing movement (5.3.4 (a) (i))

unable to fully inspect due to covers and shields

Pass 5 Mar 2021 113,423 miles

Front Exhaust has a minor leak of exhaust gases down pipe joint slightly blowing (6.1.2 (a))

Nearside Front Wheel bearing has slight play very slight play (5.1.3 (a) (i))

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

Unable to fully inspect due to covers and shields

center to rear exhaust slightly deteriorated

Pass 5 Nov 2019 112,896 miles

Front Brake hose slightly deteriorated offside and nearside slightly perished (1.1.12 (b) (ii))

Offside Front Outer Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Rear Brake pipe corroded, covered in grease or other material nearside, central and offside pipes lightly corroded (1.1.11 (c))

bonnet sound deadening hanging down slightly

unable to fully inspect due to covers and shields

Pass 6 Nov 2018 111,816 miles

Central exhaust silencer slightly deteriorated

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

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

Nearside Front wheel arch slightly corroded but not causing sharp edges

Offside door mirror cover slightly damaged but not causing sharp edges

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

Unable to fully inspect due to covers and shields

Pass 16 May 2014 111,810 miles

Brake hose slightly deteriorated (3.6.B.4d)

Brake pipe slightly corroded (3.6.B.2c)

Oil leak

Fail 1 May 2014 111,798 miles

Exhaust engine idle speed too high (7.3.A.2a)

Nearside Front Body has a sharp edge caused by corrosion (6.1.C.1)

Nearside Headlamp aim too high (1.8)

Offside Body has a sharp edge caused by damage (6.1.C.1)

Steering damper leaking oil (2.2.C.1f)

rear brake excessively fluctuating (3.7.B.3)

rear parking (secondary) brakes imbalanced (3.7.B.6b)

Brake hose slightly deteriorated (3.6.B.4d)

Brake pipe slightly corroded (3.6.B.2c)

Oil leak

Pass 19 Jul 2011 110,058 miles

Exhaust has part of the system slightly deteriorated (7.1.1a)

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

Fail 19 Jul 2011 110,058 miles

Exhaust has part of the system slightly deteriorated (7.1.1a)

Nearside Front Body has a sharp edge caused by corrosion (6.1.C.1)

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

Pass 19 Jun 2010 104,233 miles

All rear link arm bushes poor.

Both front seats not folding forward.

Both front shock absorber top mount bushes split.

Both rear springs rusty.

Brake pad warning light on.

Centre section exhaust hanger cracked.

Centre section of exhaust outer skin peeling.

Corrosion on N/S/F wing.

O/S/F wishbone bushes split.

O/S/R and N/S/R lower arm bushes poor/ split.

O/S/R tyre on 2mm.

Play in both front Antiroll-bar bushes.

Rear exhaust section hanger missing.

Slight play in N/S/F top mount.

Under vehicle brace on N/S/R loose.

Fail 19 Jun 2010 104,233 miles

All rear link arm bushes poor.

Both front seats not folding forward.

Both front shock absorber top mount bushes split.

Both rear springs rusty.

Brake pad warning light on.

Centre section exhaust hanger cracked.

Centre section of exhaust outer skin peeling.

Corrosion on N/S/F wing.

Nearside Headlamp aim too low (1.8)

O/S/F wishbone bushes split.

O/S/R and N/S/R lower arm bushes poor/ split.

O/S/R tyre on 2mm.

Offside Headlamp aim too low (1.8)

Play in both front Antiroll-bar bushes.

Rear exhaust section hanger missing.

Slight play in N/S/F top mount.

Under vehicle brace on N/S/R loose.

Pass 15 Jul 2009 99,552 miles

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

Nearside Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)

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

sill covers and undershield fitted

Pass 10 Jul 2008 94,066 miles
Fail 19 Jul 2007 87,561 miles

Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (4.1.D.1a)

Pass 19 Jul 2007 87,561 miles
Pass 10 Jan 2006 80,340 miles

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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B1 AOK is a 1991 Mercedes-benz Sl in Blue with a 4,973cc petrol engine. This vehicle has been through 20 MOT tests with a personal pass rate of 70%.

Across all 1991 Mercedes-benz Sl models, the average MOT pass rate is 81.3% with a typical mileage of 85,052 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 B1 AOK, 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 35 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 B1 AOK?

You can check the full history of B1 AOK by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was B1 AOK registered?

B1 AOK is a 1991 Mercedes-benz Sl, first registered on 1 January 1991.

Is B1 AOK safe to buy?

The MOT history for B1 AOK shows 20 tests with a 70% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does B1 AOK 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 B1 AOK. 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.