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J6 CNX

2003 Mercedes-benz Sl

Silver Petrol 4966cc
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MOT Status

Valid
Expires4 May 2027
Tests28 (20 pass, 8 fail)
Pass rate71.4%

Mileage

164,288 mi
Last recorded164,288 miles
Recorded on5 May 2026
Typical for 2003 Mercedes-benz Sl53,586 mi

Significantly above average — investigate

4 checks still locked for this Mercedes-benz
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Vehicle Details

RegistrationJ6 CNX
MakeMercedes-benz
ModelSl
Year2003
ColourSilver
Fuel typePetrol
Engine4,966cc

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

20 pass 8 fail
Pass 5 May 2026 164,288 miles
Fail 5 May 2026 164,288 miles

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

Pass 25 Apr 2025 163,560 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 26 Apr 2024 162,702 miles

Offside Headlamp has a product on the light source but not seriously reducing light output (4.1.4 (b))

Oil leak, but not excessive (8.4.1 (a) (i))

Fail 25 Apr 2024 162,693 miles

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

Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

Offside Headlamp has a product on the light source but not seriously reducing light output (4.1.4 (b))

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 4 Apr 2023 161,119 miles
Fail 3 Apr 2023 161,113 miles

Driver's seat fore and aft adjustment mechanism not functioning as intended. (6.2.5 (b) (i))

Nearside Rear Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i))

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

Pass 7 Apr 2022 159,826 miles
Fail 5 Apr 2022 159,826 miles

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

Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))

Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))

Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (8.2.1.2 (a))

Pass 1 Apr 2021 158,348 miles

Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

Handbrake efficiency just passed travel long

Offside Front Suspension arm ball joint has slight play (5.3.4 (a) (i))

Pass 9 Jan 2020 156,847 miles

Central Exhaust has a minor leak of exhaust gases joint (6.1.2 (a))

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

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

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

Pass 11 Jan 2019 154,018 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))

Fail 8 Jan 2019 154,018 miles

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

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

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

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

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

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

Pass 9 Jan 2018 151,674 miles

Nearside front brake fluctuating, but not excessively (3.7.B.3)

Offside front brake fluctuating, but not excessively (3.7.B.3)

all brake discs corroded

Fail 4 Jan 2018 151,674 miles

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

Windscreen has damage to an area in excess of a 10mm circle within zone 'A' (8.3.1a)

Windscreen has damage to the swept area in excess of a 40mm circle outside zone 'A' (8.3.1d)

Nearside front brake fluctuating, but not excessively (3.7.B.3)

Offside front brake fluctuating, but not excessively (3.7.B.3)

all brake discs corroded

Pass 19 Dec 2016 146,392 miles

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

Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

Nearside Front steering arm worn

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

Pass 22 Dec 2015 142,055 miles

Front both inner steering arms worn

Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)

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

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

Pass 17 Dec 2014 136,820 miles
Pass 30 May 2014 133,375 miles
Pass 9 May 2013 129,534 miles
Pass 1 Jun 2012 125,093 miles

Engine covers fitted obscuring some components in the engine bay

Nearside Front Lower Suspension arm ball joint dust cover damaged, but preventing the ingress of dirt (2.4.G.2)

Nearside Front Track rod end ball joint has slight play (2.2.B.1f)

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

Offside Front Lower Suspension arm ball joint dust cover damaged, but preventing the ingress of dirt (2.4.G.2)

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

Under-trays fitted obscuring some underside components

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

Pass 1 Jun 2011 115,502 miles

play in rack nearside

rear tyres worn

Fail 23 May 2011 113,215 miles

Offside Front suspension has excessive play in a lower suspension ball joint (2.5.B.1a)

play in rack nearside

rear tyres worn

Pass 19 Dec 2009 104,138 miles

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

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

noise from front suspension

play in rack

Fail 18 Dec 2009 104,131 miles

Offside Rear Tyre has ply or cords exposed (4.1.D.1b)

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

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

Windscreen has damage to an area less than a 10mm circle within zone 'A' (8.3.1a)

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

noise from front suspension

play in rack

Pass 2 Jun 2008 89,380 miles

Nearside Steering system has slight free play detected at steering wheel (2.2.A.1b)

cut in n/s/front tyre

Pass 23 May 2007 75,093 miles

Nearside Front Front wheel bearing has slight play (2.5.A.3c)

Nearside Track rod end ball joint has slight play (2.2.B.1f)

Pass 23 May 2006 57,777 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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J6 CNX is a 2003 Mercedes-benz Sl in Silver with a 4,966cc petrol engine. This vehicle has been through 28 MOT tests with a personal pass rate of 71.4%.

Across all 2003 Mercedes-benz Sl models, the average MOT pass rate is 83.5% with a typical mileage of 53,586 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 J6 CNX, 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 23 years old, this Mercedes-benz Sl is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of J6 CNX?

You can check the full history of J6 CNX by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was J6 CNX registered?

J6 CNX is a 2003 Mercedes-benz Sl, first registered on 30 May 2003.

Is J6 CNX safe to buy?

The MOT history for J6 CNX shows 28 tests with a 71.4% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does J6 CNX 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 J6 CNX. 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.