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L123 ALX

2012 Mercedes-benz Cls

Black Diesel 2987cc
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MOT Status

Valid
Expires29 Mar 2027
Tests18 (11 pass, 7 fail)
Pass rate61.1%

Mileage

118,873 mi
Last recorded118,873 miles
Recorded on30 Mar 2026
Typical for 2012 Mercedes-benz Cls65,750 mi

Significantly above average — investigate

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

RegistrationL123 ALX
MakeMercedes-benz
ModelCls
Year2012
ColourBlack
Fuel typeDiesel
Engine2,987cc

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 7 fail
Pass 30 Mar 2026 118,873 miles

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

Front Brake pipe corroded, covered in grease or other material inner wing brake pipe both sides (1.1.11 (c))

Front Service brake fluctuating, but not excessively (1.2.1 (e))

Fail 17 Mar 2026 118,714 miles

Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords outer wall (5.2.3 (d) (i))

Parking brake efficiency below requirements (1.4.2 (a) (i))

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

Front Brake pipe corroded, covered in grease or other material inner wing brake pipe both sides (1.1.11 (c))

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

Front Service brake fluctuating, but not excessively (1.2.1 (e))

Pass 19 Mar 2025 117,097 miles

Nearside Front Anti-roll bar ball joint has slight play (5.3.4 (a) (i))

Offside Front Anti-roll bar ball joint has slight play (5.3.4 (a) (i))

Fail 19 Mar 2025 117,097 miles

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

Nearside Front Anti-roll bar ball joint has slight play (5.3.4 (a) (i))

Offside Front Anti-roll bar ball joint has slight play (5.3.4 (a) (i))

Pass 20 Feb 2024 115,451 miles

Front Inner Brake disc worn, but not excessively both sides (1.1.14 (a) (i))

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

Pass 10 Mar 2023 110,837 miles

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

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

Pass 14 Feb 2022 107,074 miles
Fail 31 Jan 2022 106,950 miles

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

Nearside Rear Brake pipe excessively corroded (1.1.11 (c))

Offside Rear Brake pipe excessively corroded (1.1.11 (c))

Oil leaking excessively from engine (8.4.1 (a) (i))

Pass 28 Jan 2021 98,216 miles

Nearside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

Rear Brake pipe corroded, covered in grease or other material both sides (1.1.11 (c))

Fail 16 Jan 2021 97,423 miles

Rear Registration plate insecure (0.1 (a))

Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

Offside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

Nearside Front Tyre has a cut but not deep enough to reach the ply or cords (5.2.3 (d) (i))

Rear Brake pipe corroded, covered in grease or other material both sides (1.1.11 (c))

Pass 31 Jul 2019 82,211 miles
Fail 18 Jul 2019 82,157 miles

Brake pedal has insufficient reserve travel (1.1.2 (a))

Front Service brake excessively binding (1.2.1 (f))

Front Brakes imbalanced across an axle by more than 50% (1.2.1 (b) (ii)) DANGEROUS

Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))

Pass 27 Jul 2018 74,130 miles
Pass 31 Jul 2017 68,111 miles
Pass 16 Jul 2016 56,384 miles

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

Fail 16 Jul 2016 56,384 miles

Front registration plate character(s) not correctly formed and rear (6.3.4b)

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

Pass 30 Jul 2015 49,425 miles

Engine covers fitted obscuring some components in the engine bay

Play in steering rack inner joint(s)

Rear Brake pad(s) wearing thin (3.5.1g)

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

Under-trays fitted obscuring some underside components

Fail 30 Jul 2015 49,425 miles

Engine covers fitted obscuring some components in the engine bay

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

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

Play in steering rack inner joint(s)

Rear Brake pad(s) wearing thin (3.5.1g)

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

Under-trays fitted obscuring some underside components

How Reliable is the Mercedes-benz Cls?

Based on 421,126 MOT tests across 35,498 vehicles.

79.8%
Pass Rate
6,663
Miles/Year
21
Year Lifespan
35,498
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 8,450
Tyre has ply or cords exposed 6,682
Tyre has a cut in excess of the requirements deep enough to reach the ply or cords 2,819
Suspension arm has excessive play in a ball joint 2,595
suspension has excessive play in a lower suspension ball joint 2,284
Full Mercedes-benz Cls reliability report

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L123 ALX is a 2012 Mercedes-benz Cls in Black with a 2,987cc diesel engine. This vehicle has been through 18 MOT tests with a personal pass rate of 61.1%.

Across all 2012 Mercedes-benz Cls models, the average MOT pass rate is 81.4% with a typical mileage of 65,750 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 Cls fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 8,450 recorded failures. If you're considering buying L123 ALX, it's worth having these areas checked by a mechanic before committing.

The Mercedes-benz Cls typically stays on UK roads for around 21 years. At 14 years old, this Mercedes-benz Cls is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of L123 ALX?

You can check the full history of L123 ALX by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was L123 ALX registered?

L123 ALX is a 2012 Mercedes-benz Cls, first registered on 10 September 2012.

Is L123 ALX safe to buy?

The MOT history for L123 ALX shows 18 tests with a 61.1% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does L123 ALX 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 L123 ALX. 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.