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K400 RTN

2011 Mercedes Unknown

White Petrol 4163cc
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MOT Status

Valid
Expires22 May 2027
Tests25 (16 pass, 9 fail)
Pass rate64%

Mileage

559,567 mi
Last recorded559,567 miles
Recorded on23 May 2026
Typical for 2011 Mercedes Unknown79,216 mi

Significantly above average — investigate

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

RegistrationK400 RTN
MakeMercedes
ModelUnknown
Year2011
ColourWhite
Fuel typePetrol
Engine4,163cc

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

16 pass 9 fail
Pass 23 May 2026 559,567 miles
Pass 23 Feb 2026 130,421 miles
Pass 18 Mar 2025 127,315 miles
Pass 26 Oct 2024 558,409 miles
Pass 18 Jan 2024 118,481 miles

Nearside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Offside Front Outer Tyre slightly damaged side wall (5.2.3 (d) (ii))

Fail 15 Jan 2024 118,481 miles

Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt rear arm (5.3.4 (b) (ii))

Nearside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Nearside Rear Tyre obviously under inflated (5.2.3 (l))

Offside Front Outer Tyre slightly damaged side wall (5.2.3 (d) (ii))

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

Pass 15 Sep 2023 553,192 miles

Nearside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Front Air brake cylinder/actuator corroded but not seriously weakened (1.1.16 (d) (i))

Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Fail 14 Sep 2023 553,192 miles

Anti-lock braking system warning lamp indicates an ABS fault (1.6 (b))

Exhaust has a major leak of exhaust gases (6.1.2 (a))

Nearside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Front Air brake cylinder/actuator corroded but not seriously weakened (1.1.16 (d) (i))

Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Fail 23 Aug 2023 553,179 miles

Exhaust has a major leak of exhaust gases (6.1.2 (a))

Nearside Front Air brake cylinder/actuator cracked brake chamber (1.1.16 (a) (i))

Nearside Front Air brake cylinder/actuator excessively corroded brake chamber (1.1.16 (d) (i))

Nearside Front Seat belt anchorage prescribed area strength or continuity significantly reduced inner and outer arch (7.1.1 (a) (i))

Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))

Nearside Rear Shock absorbers has a serious fluid leak (5.3.2 (b))

Nearside Side repeater missing (4.4.1 (a) (ii))

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

Nearside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Offside Front Air brake cylinder/actuator corroded but not seriously weakened brake chamber (1.1.16 (d) (i))

Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

slight diesel leak around engine

Pass 14 Dec 2022 105,232 miles

Nearside Rear Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Pass 23 Aug 2022 540,794 miles
Fail 18 Aug 2022 540,791 miles

Offside Front Braking system leaking Connection at ABS module (1.1.3 (d))

Pass 7 Dec 2021 98,199 miles

Offside Play in steering rack inner joint(s)

Fail 7 Dec 2021 98,199 miles

Nearside Rear Coil spring fractured or broken broken (5.3.1 (b) (i))

Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii)) DANGEROUS

Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii)) DANGEROUS

Offside Play in steering rack inner joint(s)

both rear exhaust heat shields insecure

Pass 12 Nov 2020 93,404 miles

Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

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

Offside Play in steering rack inner joint(s)

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

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

Fail 12 Nov 2020 93,404 miles

Headlamp cleaning device for LED or HID headlamp inoperative (4.1.6 (a) (ii))

Nearside Rear Headlamp levelling device inoperative height sensor linkage broken (4.1.5 (a))

Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

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

Offside Play in steering rack inner joint(s)

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

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

Pass 23 Nov 2019 86,908 miles
Pass 4 Dec 2018 77,725 miles

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

Offside Front Play in steering rack inner joint(s)

Fail 4 Dec 2018 77,725 miles

Offside Rear Shock absorbers has a serious fluid leak (5.3.2 (b))

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

Offside Front Play in steering rack inner joint(s)

Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Pass 7 Dec 2017 66,217 miles

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

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

o/s/f inner track rod has slight play

Pass 15 Nov 2016 47,685 miles

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

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

Pass 3 Dec 2015 38,604 miles
Fail 3 Dec 2015 38,604 miles

Offside Headlamp aim too high (1.8)

Pass 20 Nov 2014 27,413 miles
Fail 20 Nov 2014 24,709 miles

Front Brake pad(s) less than 1.5 mm thick (3.5.1g)

Nearside Front Tyre not fitted in accordance with side wall instructions (4.1.D.1f)

Offside Front Tyre not fitted in accordance with side wall instructions (4.1.D.1f)

brake warning lamp on dash

How Reliable is the Mercedes Unknown?

Based on 11,881 MOT tests across 4,378 vehicles.

79.2%
Pass Rate
3,416
Miles/Year
39
Year Lifespan
4,378
On UK Roads
Full Mercedes Unknown reliability report

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K400 RTN is a 2011 Mercedes Unknown in White with a 4,163cc petrol engine. This vehicle has been through 25 MOT tests with a personal pass rate of 64%.

Across all 2011 Mercedes Unknown models, the average MOT pass rate is 82.4% with a typical mileage of 79,216 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The Mercedes Unknown typically stays on UK roads for around 39 years. At 15 years old, this Mercedes Unknown is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of K400 RTN?

You can check the full history of K400 RTN by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was K400 RTN registered?

K400 RTN is a 2011 Mercedes Unknown, first registered on 8 December 2011.

Is K400 RTN safe to buy?

The MOT history for K400 RTN shows 25 tests with a 64% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does K400 RTN 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 K400 RTN. 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.