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ST03 KXB

2003 BMW Z4

Silver Petrol 2494cc
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MOT Status

Valid
Expires31 May 2027
Tests31 (21 pass, 10 fail)
Pass rate67.7%

Mileage

89,695 mi
Last recorded89,695 miles
Recorded on1 Jun 2026
Typical for 2003 BMW Z467,714 mi

Above average mileage for this year

4 checks still locked for this BMW
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Vehicle Details

RegistrationST03 KXB
MakeBMW
ModelZ4
Year2003
ColourSilver
Fuel typePetrol
Engine2,494cc
View full BMW Z4 reliability data Browse other 2003 BMW Z4 registrations

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

21 pass 10 fail
Pass 1 Jun 2026 89,695 miles

Front exhaust flanged joints corroded

Nearside Front Brake hose has slight corrosion to ferrule (1.1.12 (f) (i))

Nearside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Shock absorber dust cover detached

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Front Brake hose has slight corrosion to ferrule (1.1.12 (f) (i))

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

Offside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Rear Shock absorber dust cover detached

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

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

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Fail 20 May 2026 89,695 miles

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

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

Nearside Headlamp aim too low (4.1.2 (a))

Nearside Headlamp levelling device inoperative (4.1.5 (a))

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

Front exhaust flanged joints corroded

Nearside Front Brake hose has slight corrosion to ferrule (1.1.12 (f) (i))

Nearside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Shock absorber dust cover detached

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Front Brake hose has slight corrosion to ferrule (1.1.12 (f) (i))

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

Offside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Rear Shock absorber dust cover detached

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

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

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 23 Apr 2025 89,489 miles

Exhaust front flanged joints corroded

Nearside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

Nearside Front Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Shock absorber dust cover detached

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

Offside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Rear Shock absorber dust cover detached

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Fail 7 Apr 2025 89,487 miles

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

Fuel cap/sealing device ineffective Seal split (6.1.3 (b) (i))

Nearside Brake pipe excessively corroded Front to rear @ front (1.1.11 (c))

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

Offside Brake pipe excessively corroded Front to rear @ front (1.1.11 (c))

Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

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

Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. 37% imbalance across front axle when holding pedal steady (1.2.1 (b) (i))

Exhaust front flanged joints corroded

Nearside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

Nearside Front Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Shock absorber dust cover detached

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Front Brake hose slightly deteriorated (1.1.12 (b) (ii))

Offside Rear Lower Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Rear Shock absorber dust cover detached

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

T.P.M.S light on

Pass 10 Apr 2024 88,115 miles

Nearside Front Shock absorbers has a slightly worn bush (5.3.2 (c))

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Front Shock absorbers has a slightly worn bush (5.3.2 (c))

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Parking brake lever worn, but not excessively (1.1.6 (b) (i))

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Fail 8 Apr 2024 88,110 miles

Offside Front Tyre not fitted in accordance with side wall instructions (5.2.3 (i))

Offside Rear Tyre not fitted in accordance with side wall instructions (5.2.3 (i))

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

Nearside Front Shock absorbers has a slightly worn bush (5.3.2 (c))

Nearside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Front Shock absorbers has a slightly worn bush (5.3.2 (c))

Offside Rear Subframe mounting prescribed area is corroded but not considered excessive (5.3.6 (a) (i))

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Parking brake lever worn, but not excessively (1.1.6 (b) (i))

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 15 May 2023 86,931 miles

Exhaust has a minor leak of exhaust gases front joints (6.1.2 (a))

Nearside Front wheel hub corroded

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Fail 3 May 2023 86,930 miles

Offside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))

Offside Front Service brake excessively binding (1.2.1 (f))

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

Nearside Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) DANGEROUS

Offside Rear Brake pipe at imminent risk of failure or fracture part flexible (1.1.11 (a)) DANGEROUS

Exhaust has a minor leak of exhaust gases front joints (6.1.2 (a))

Nearside Front wheel hub corroded

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

Offside Front brake pad material overheated

Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 8 Apr 2022 86,627 miles
Fail 7 Feb 2022 86,621 miles

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

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

Nearside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii)) DANGEROUS

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

Underbody has surface corrosion

Pass 17 Feb 2021 85,282 miles
Pass 10 Jan 2020 84,714 miles

Offside Front inner steering arm has play

Pass 28 Nov 2018 82,060 miles
Pass 26 Oct 2017 78,596 miles

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Pass 30 Sep 2016 71,752 miles
Pass 29 Sep 2015 68,969 miles
Fail 14 Sep 2015 68,961 miles

Nearside Front Upper Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt AND LOWER (2.4.G.2)

Nearside Front coil spring broken (2.4.C.1a)

Nearside Rear Lower coil spring broken (2.4.C.1a)

Offside Front Headlamp aim too low (1.8)

Offside Front Lower Anti-roll bar ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)

Offside Rear Lower coil spring broken (2.4.C.1a)

BOTH FRONT STRUTS ARE SLIGHTLY STIFF

ENGINE FLOOR AND SILL COVERS

Nearside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Nearside Front Lower Suspension arm has slight play in a ball joint (2.4.G.2)

Nearside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Nearside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

OIL LEAK

Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Front Lower Suspension arm has slight play in a ball joint (2.4.G.2)

Offside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Offside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Offside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

SOME OF THE BRAKE PIPES ARE COATED IN GREASE

Pass 3 Oct 2014 67,827 miles

ALL FOUR BRAKE DISCS ARE WORN

BOTH FRONT STRUTS ARE SLIGHTLY STIFF

Engine covers fitted obscuring some components in the engine bay

Front Anti-roll bar corroded but not seriously weakened (2.4.G.1)

HEADLAMPS WHERE SET AT ZERO..ON THE DASH

NEARSIDE AND OFFSIDE OUTER SILLLS HAVE PLASTIC COVERS ON THE SILLS..SILLS NOT CHECKED

NEARSIDE FRONT HEADLAMP AIM IS AT ITS HIGHEST ACCEPITABLE LEVEL..WILL REQUIRE AJUSTEMENT.SETR AT ZERO..ON THE DASH

NEARSIDE FRONT SHOCKER STEM HAS SLIGHT LIFT WHEN THE FRONT OF THE VEHICLE IS JACKED UP?

Nearside Front Anti-roll bar linkage corroded but not seriously weakened (2.4.G.1)

Nearside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Nearside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Nearside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Nearside Front Upper Shock absorber has a slightly worn shock absorber pivot (2.7.4)

Nearside Front coil spring corroded (2.4.C.1b)

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Rear Lower Suspension arm corroded but not seriously weakened (2.4.G.1)

Nearside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

Nearside Rear coil spring corroded (2.4.C.1b)

Offside Front Anti-roll bar linkage corroded but not seriously weakened (2.4.G.1)

Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Offside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Offside Front coil spring corroded (2.4.C.1b)

Offside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Rear Lower Suspension arm corroded but not seriously weakened (2.4.G.1)

Offside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

Offside Rear coil spring corroded (2.4.C.1b)

Rear Anti-roll bar corroded but not seriously weakened (2.4.G.1)

Rear Sub-frame corroded but not seriously weakened (2.4.G.1)

Under-trays fitted obscuring some underside components

Fail 2 Oct 2014 67,823 miles

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

Offside Front Brake pipe excessively corroded (3.6.B.2c)

Offside Front Headlamp aim too low (1.8)

Offside Rear Brake pipe excessively corroded (3.6.B.2c)

ALL FOUR BRAKE DISCS ARE WORN

BOTH FRONT STRUTS ARE SLIGHTLY STIFF

Engine covers fitted obscuring some components in the engine bay

Front Anti-roll bar corroded but not seriously weakened (2.4.G.1)

HEADLAMPS WHERE SET AT ZERO..ON THE DASH

NEARSIDE AND OFFSIDE OUTER SILLLS HAVE PLASTIC COVERS ON THE SILLS..SILLS NOT CHECKED

NEARSIDE FRONT HEADLAMP AIM IS AT ITS HIGHEST ACCEPITABLE LEVEL..WILL REQUIRE AJUSTEMENT.SETR AT ZERO..ON THE DASH

NEARSIDE FRONT SHOCKER STEM HAS SLIGHT LIFT WHEN THE FRONT OF THE VEHICLE IS JACKED UP?

Nearside Front Anti-roll bar linkage corroded but not seriously weakened (2.4.G.1)

Nearside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Nearside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Nearside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Nearside Front Upper Shock absorber has a slightly worn shock absorber pivot (2.7.4)

Nearside Front coil spring corroded (2.4.C.1b)

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Nearside Rear Lower Suspension arm corroded but not seriously weakened (2.4.G.1)

Nearside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

Nearside Rear coil spring corroded (2.4.C.1b)

Offside Front Anti-roll bar linkage corroded but not seriously weakened (2.4.G.1)

Offside Front Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Front Macpherson strut corroded but not seriously weakened (2.4.G.1)

Offside Front Upper Macpherson strut has slight movement at the upper attachment (2.5.A.1c)

Offside Front coil spring corroded (2.4.C.1b)

Offside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

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

Offside Rear Lower Suspension arm corroded but not seriously weakened (2.4.G.1)

Offside Rear Shock absorber has slight corrosion to the casing (2.7.2a)

Offside Rear coil spring corroded (2.4.C.1b)

Rear Anti-roll bar corroded but not seriously weakened (2.4.G.1)

Rear Sub-frame corroded but not seriously weakened (2.4.G.1)

Under-trays fitted obscuring some underside components

Pass 24 Aug 2013 62,707 miles
Fail 16 Aug 2013 62,644 miles

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

Offside Front Brake pipe slightly corroded (3.6.B.2c)

Pass 23 Aug 2012 56,028 miles
Fail 13 Aug 2012 56,026 miles

Nearside Front Tyre has a lump, caused by separation or partial failure of its structure (4.1.D.1b)

Offside Rear coil spring fractured (2.4.C.1a)

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

Pass 30 Aug 2011 12,675 miles

Front to rear and rear brake pipes coated in grease

Nearside Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Brake pipe slightly corroded (3.6.B.2c)

Offside Front Anti-roll bar linkage has slight play in a ball joint (2.4.G.2)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Pass 16 Aug 2010 47,939 miles

Nearside Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Pass 27 Aug 2009 42,790 miles
Pass 19 Jun 2008 37,767 miles

Nearside Front Front suspension has slight play in a lower suspension ball joint (2.5.B.1a)

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

nsf tyre worn on inner edge

Fail 19 Jun 2008 37,767 miles

Nearside Headlamp aim too high (1.8)

Nearside Windscreen wiper does not clear the windscreen effectively (8.2.2)

Offside Headlamp aim too high (1.8)

Nearside Front Front suspension has slight play in a lower suspension ball joint (2.5.B.1a)

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

nsf tyre worn on inner edge

Pass 18 Jun 2007 34,278 miles
Pass 24 Oct 2006 30,535 miles
Pass 19 Jun 2006 26,223 miles

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

How Reliable is the BMW Z4?

Based on 699,787 MOT tests across 46,739 vehicles.

79.5%
Pass Rate
3,672
Miles/Year
23
Year Lifespan
46,739
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 14,961
coil spring broken 6,689
Tyre has ply or cords exposed 5,893
Brake pipe excessively corroded 5,843
coil spring fractured 5,828
Full BMW Z4 reliability report

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ST03 KXB is a 2003 BMW Z4 in Silver with a 2,494cc petrol engine. This vehicle has been through 31 MOT tests with a personal pass rate of 67.7%.

Across all 2003 BMW Z4 models, the average MOT pass rate is 75.3% with a typical mileage of 67,714 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 BMW Z4 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 14,961 recorded failures. If you're considering buying ST03 KXB, it's worth having these areas checked by a mechanic before committing.

The BMW Z4 typically stays on UK roads for around 23 years. At 23 years old, this BMW Z4 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of ST03 KXB?

You can check the full history of ST03 KXB by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was ST03 KXB registered?

ST03 KXB is a 2003 BMW Z4, first registered on 20 June 2003.

Is ST03 KXB safe to buy?

The MOT history for ST03 KXB shows 31 tests with a 67.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ST03 KXB 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 ST03 KXB. 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.