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Y403 ECU

2001 Audi A4

Bronze Petrol 1781cc
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MOT Status

Expired
Expires2 Sep 2026
Tests27 (18 pass, 9 fail)
Pass rate66.7%

Mileage

108,879 mi
Last recorded108,879 miles
Recorded on3 Sep 2025
Typical for 2001 Audi A4109,458 mi

Below or average mileage for this year

4 checks still locked for this Audi
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Vehicle Details

RegistrationY403 ECU
MakeAudi
ModelA4
Year2001
ColourBronze
Fuel typePetrol
Engine1,781cc

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

18 pass 9 fail
Pass 3 Sep 2025 108,879 miles

Nearside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

Offside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

Oil leak, but not excessive Leaking from oil filter. (8.4.1 (a) (i))

Oil level on the minimum.

Fail 26 Aug 2025 108,808 miles

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

Nearside Front Lower Suspension arm pin or bush excessively worn Shock absorber bolts onto that suspension arm. (5.3.4 (a) (i))

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

Nearside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Offside Front Lower Suspension arm pin or bush excessively worn Shock absorber bolts onto that suspension arm. (5.3.4 (a) (i))

Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Nearside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

Offside Rear Axle swivel pins and bushes swivel pin and/or bush slightly worn (5.1.2 (b) (i))

Oil leak, but not excessive Leaking from oil filter. (8.4.1 (a) (i))

Oil level on the minimum.

Pass 12 Aug 2024 103,701 miles

Front Tyre worn close to legal limit/worn on edge both @3mm 215/55/16 93w (5.2.3 (e))

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

Fail 8 Aug 2024 103,699 miles

Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))

Offside Front Coil spring fractured or broken (5.3.1 (b) (i))

Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))

Offside Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Front Tyre worn close to legal limit/worn on edge both @3mm 215/55/16 93w (5.2.3 (e))

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

Pass 1 Aug 2023 97,890 miles
Fail 25 Jul 2023 97,858 miles

Nearside Front Anti-roll bar linkage pin or bush excessively worn link arm (5.3.4 (a) (i))

Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))

Nearside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i))

Offside Front Anti-roll bar linkage pin or bush excessively worn link arm (5.3.4 (a) (i))

Offside Front Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i))

Offside Front Position lamp not working (4.2.1 (a) (ii))

Offside Front Upper Suspension arm ball joint excessively worn (5.3.4 (a) (i))

Rear Inner Brake disc significantly and obviously worn (1.1.14 (a) (i))

Pass 1 Aug 2022 93,160 miles
Fail 26 Jul 2022 93,152 miles

Emissions not tested co and lamba reading very high water coming out of rear exhaust (8.2.1.2 (d))

Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))

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

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

Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))

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

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

Pass 18 Jun 2021 89,349 miles

Front Drive shaft joint constant velocity boot severely deteriorated both sides (6.1.7 (g) (i))

Pass 20 Jun 2020 88,955 miles

Nearside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Offside Front Drive shaft joint constant velocity boot severely deteriorated (6.1.7 (g) (i))

Pass 24 Apr 2018 87,917 miles

Offside Front Front constant velocity joint gaiter damaged, but preventing the ingress of dirt (2.5.C.1a)

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

Pass 18 Feb 2017 86,924 miles

Offside Front Front constant velocity joint gaiter damaged, but preventing the ingress of dirt (2.5.C.1a)

Fail 18 Feb 2017 86,924 miles

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

Offside Front Front constant velocity joint gaiter damaged, but preventing the ingress of dirt (2.5.C.1a)

Offside Front Windscreen wiper does not clear the windscreen effectively (8.2.2)

Pass 16 Dec 2015 86,131 miles

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

Offside Front Outer Front constant velocity joint gaiter deteriorated, but preventing the ingress of dirt (2.5.C.1a)

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

slight corrosion on discs

under tray fitted

Fail 16 Dec 2015 86,131 miles

Nearside Front Lower Anti-roll bar locating pin insecure (2.4.G.3a)

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

Offside Front Outer Front constant velocity joint gaiter deteriorated, but preventing the ingress of dirt (2.5.C.1a)

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

slight corrosion on discs

under tray fitted

Pass 5 Jun 2014 85,389 miles

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

Nearside Rear Lower coil spring worn (2.4.C.1b)

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

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

Pass 4 Apr 2013 84,479 miles

Oil leak

Pass 3 Apr 2012 83,101 miles
Fail 27 Mar 2012 83,101 miles

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

Nearside Rear Exhaust emissions carbon monoxide content at idle excessive (7.3.D.4)

Nearside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc (2.5.C.1a)

Pass 28 Feb 2011 81,961 miles

Offside Front Exhaust has a minor leak of exhaust gases (7.1.2)

both rear discs in poor cond

Pass 21 Jan 2010 80,454 miles

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

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

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

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

Fail 28 Jan 2009 74,847 miles

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

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

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

Pass 28 Jan 2009 74,847 miles

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

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

Pass 30 Jan 2008 68,056 miles
Fail 30 Jan 2008 68,056 miles

Nearside Front Radius arm has excessive play in a pin/bush (2.4.G.2)

Offside Front Radius arm has excessive play in a pin/bush (2.4.G.2)

Pass 25 Jan 2007 60,932 miles
Pass 17 Dec 2005 56,393 miles

How Reliable is the Audi A4?

Based on 7,096,957 MOT tests across 571,801 vehicles.

76.1%
Pass Rate
7,591
Miles/Year
31
Year Lifespan
571,801
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 231,238
Suspension arm has excessive play in a ball joint 97,478
Brake hose excessively deteriorated 97,376
Windscreen wiper does not clear the windscreen effectively 84,223
Registration plate lamp not working 78,638
Full Audi A4 reliability report

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Y403 ECU is a 2001 Audi A4 in Bronze with a 1,781cc petrol engine. This vehicle has been through 27 MOT tests with a personal pass rate of 66.7%.

Across all 2001 Audi A4 models, the average MOT pass rate is 71.6% with a typical mileage of 109,458 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 Audi A4 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 231,238 recorded failures. If you're considering buying Y403 ECU, it's worth having these areas checked by a mechanic before committing.

The Audi A4 typically stays on UK roads for around 31 years. At 25 years old, this Audi A4 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of Y403 ECU?

You can check the full history of Y403 ECU by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was Y403 ECU registered?

Y403 ECU is a 2001 Audi A4, first registered on 27 April 2001.

Is Y403 ECU safe to buy?

The MOT history for Y403 ECU shows 27 tests with a 66.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does Y403 ECU 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 Y403 ECU. 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.