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MK 9

2021 Mercedes-benz S-class

Black Hybrid electric (clean) 2999cc
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MOT Status

Valid
Expires15 Sep 2026
Tests4 (3 pass, 1 fail)
Pass rate75%

Mileage

43,853 mi
Last recorded43,853 miles
Recorded on16 Sep 2025
Typical for 2021 Mercedes-benz S-class32,818 mi

Above average mileage for this year

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

RegistrationMK 9
MakeMercedes-benz
ModelS-class
Year2021
ColourBlack
Fuel typeHybrid electric (clean)
Engine2,999cc

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

3 pass 1 fail
Pass 16 Sep 2025 43,853 miles

Offside Front Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Offside Rear Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Fail 11 Sep 2025 43,750 miles

Rear fog lamp not working (4.5.1 (a) (ii))

Offside Front Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Offside Rear Tyre worn close to legal limit/worn on edge 2mm (5.2.3 (e))

Pass 13 Sep 2024 36,071 miles

Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))

Pass 27 Feb 2024 35,121 miles

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

Front Windscreen wiper blade defective offside and nearside (3.4 (b) (i))

Windscreen damaged but not adversely affecting driver's view stone chip (3.2 (a) (i))

How Reliable is the Mercedes-benz S-class?

Based on 692,220 MOT tests across 62,130 vehicles.

80.6%
Pass Rate
6,086
Miles/Year
39
Year Lifespan
62,130
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 25,613
Brake pipe excessively corroded 8,895
Parking brake: efficiency below requirements 6,706
Suspension arm has excessive play in a ball joint 6,018
Windscreen wiper does not clear the windscreen effectively 5,811
Full Mercedes-benz S-class reliability report

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MK 9 is a 2021 Mercedes-benz S-class in Black with a 2,999cc hybrid electric (clean) engine. This vehicle has been through 4 MOT tests with a personal pass rate of 75%.

Across all 2021 Mercedes-benz S-class models, the average MOT pass rate is 90.9% with a typical mileage of 32,818 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 S-class fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 25,613 recorded failures. If you're considering buying MK 9, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz S-class typically stays on UK roads for around 39 years. At 5 years old, this Mercedes-benz S-class is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of MK 9?

You can check the full history of MK 9 by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was MK 9 registered?

MK 9 is a 2021 Mercedes-benz S-class, first registered on 30 March 2021.

Is MK 9 safe to buy?

The MOT history for MK 9 shows 4 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does MK 9 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 MK 9. 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.