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B857 THP

1985 Mercedes-benz Sl

Silver Petrol 4973cc
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MOT Status

Expired
Expires25 Mar 2026
Tests16 (11 pass, 5 fail)
Pass rate68.8%

Mileage

154,704 mi
Last recorded154,704 miles
Recorded on26 Mar 2025
Typical for 1985 Mercedes-benz Sl92,344 mi

Significantly above average — investigate

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

RegistrationB857 THP
MakeMercedes-benz
ModelSl
Year1985
ColourSilver
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

11 pass 5 fail
Pass 26 Mar 2025 154,704 miles
Pass 15 Jul 2019 154,404 miles
Fail 9 Jul 2019 154,404 miles

Nearside Front Headlamp aim too low (4.1.2 (a))

Nearside Front Seat belt anchorage prescribed area strength or continuity significantly reduced floor pan (7.1.1 (a) (i))

Offside Front Anti-roll bar attachment bracket/mounting corroded and seriously weakened (5.3.3 (b) (i))

Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded inner wing outrigger (1.1.21 (e) (i))

Offside Front Headlamp aim too low (4.1.2 (a))

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

Offside Front Seat belt anchorage prescribed area strength or continuity significantly reduced floor pan (7.1.1 (a) (i))

Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength chassis rail (5.3.6 (a) (i))

Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))

Windscreen washer not working (3.5 (a))

Pass 1 Apr 2016 153,255 miles
Fail 22 Mar 2016 153,254 miles

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

Nearside Headlamp aim too high (1.8)

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

Offside Front Front position lamp(s) not working (1.1.A.3b)

Offside Front Steering component mounting prescribed area is excessively corroded inner wheel arch (2.2.C.1h)

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

Offside Rear rear brake binding (3.7.B.1)

Offside Registration plate lamp not working (1.1.C.1d)

all exhaust rubbers perished

Pass 8 Apr 2013 152,224 miles
Pass 20 Jan 2012 151,454 miles
Pass 5 May 2010 150,419 miles
Pass 27 Apr 2009 150,017 miles
Pass 6 May 2008 149,268 miles
Fail 18 Apr 2008 149,228 miles

Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded (3.6.C.3)

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

Pass 19 Apr 2007 148,141 miles
Fail 26 Mar 2007 148,139 miles

Brake pedal spongy (3.3.B.1b)

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

Offside Headlamp aim too low and too far to the left. (1.8)

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

Exhaust has a minor leak of exhaust gases (7.1.2)

corroshion starting on floor and rear suspion mounting points

fuel lines

Pass 10 Mar 2006 147,109 miles
Pass 19 May 2005 146,175 miles
Fail 16 May 2005 146,175 miles

Rear Exhaust mounting missing (7.1.1b)

Nearside Front Front position lamp(s) not working (1.1.A.3b)

Nearside Front Headlamp aim too low when the centre of the headlamp is below 850mm from the ground (1.6.B2)

Offside Front Headlamp aim too low when the centre of the headlamp is below 850mm from the ground (1.6.B2)

Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

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

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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B857 THP is a 1985 Mercedes-benz Sl in Silver with a 4,973cc petrol engine. This vehicle has been through 16 MOT tests with a personal pass rate of 68.8%.

Across all 1985 Mercedes-benz Sl models, the average MOT pass rate is 77.5% with a typical mileage of 92,344 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 B857 THP, 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 41 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 B857 THP?

You can check the full history of B857 THP by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was B857 THP registered?

B857 THP is a 1985 Mercedes-benz Sl, first registered on 1 January 1985.

Is B857 THP safe to buy?

The MOT history for B857 THP shows 16 tests with a 68.8% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does B857 THP 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 B857 THP. 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.