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EF04 BTZ

2004 Mazda RX-8

Blue Petrol 2616cc
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MOT Status

Expired
Expires6 May 2026
Tests18 (11 pass, 7 fail)
Pass rate61.1%

Mileage

58,055 mi
Last recorded58,055 miles
Recorded on7 May 2025
Typical for 2004 Mazda RX-850,944 mi

Above average mileage for this year

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

RegistrationEF04 BTZ
MakeMazda
ModelRX-8
Year2004
ColourBlue
Fuel typePetrol
Engine2,616cc

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 7 May 2025 58,055 miles

general corrosion to underside of vehicle and suspension components

Fail 25 Apr 2025 58,052 miles

Brake performance unable to be tested (1.2.1 (g))

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))

Nearside Front Suspension component mounting prescribed area is inadequately repaired inner sill (5.3.6 (a) (i))

Offside Front Suspension component mounting prescribed area is inadequately repaired inner sill (5.3.6 (a) (i))

Nearside Front Lower Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) DANGEROUS

Offside Front Brake hose leaking on a hydraulic braking system (1.1.12 (c) (ii)) DANGEROUS

general corrosion to underside of vehicle and suspension components

Pass 15 Jul 2022 49,573 miles

Front suspension components showing signs of corrosion

Nearside Front Headlamp lens slightly defective (4.1.1 (b) (i))

Nearside Front Seat belt anchorage prescribed area is corroded but not considered excessive inner sill (7.1.1 (a) (i))

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

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

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

Offside Front Headlamp lens slightly defective (4.1.1 (b) (i))

Offside Front Seat belt anchorage prescribed area is corroded but not considered excessive inner sill (7.1.1 (a) (i))

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

Offside Rear Suspension arm pin or bush worn but not resulting in excessive movement tie bar, rear bush cracking (5.3.4 (a) (i))

Rear suspension components showing signs of corrosion

Fail 27 May 2022 49,558 miles

Electronic stability control warning lamp indicates a fault (7.12 (e))

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

Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b))

Exhaust emissions - engine idle speed too high (8.2.1.2 (e))

Offside Front Road wheel fixing missing (5.2.1 (a) (i))

Offside Front Service brake lagging in operation (1.2.1 (d))

Offside Rear Suspension component mounting prescribed area is inadequately repaired (5.3.6 (a) (i))

Brake hose has slight corrosion to ferrule all brake hoses (1.1.12 (f) (i))

Front Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Headlamp lens slightly defective nearside and offside (4.1.1 (b) (i))

Nearside Front Service brake binding but not excessively (1.2.1 (f))

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Nearside Seat belt anchorage prescribed area is corroded but not considered excessive outer body sill (7.1.1 (a) (i))

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

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

Suspension rod corroded but not seriously weakened all suspension rod (5.3.3 (b) (i))

Fail 12 Feb 2022 49,556 miles

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

Electronic stability control warning lamp indicates a fault (7.12 (e))

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

Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))

Exhaust emissions - engine idle speed too high (8.2.1.2 (e))

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

Nearside Rear Seat belt anchorage prescribed area strength or continuity significantly reduced Outer sill (7.1.1 (a) (i))

Offside Front Road wheel fixing missing (5.2.1 (a) (i))

Offside Front Service brake lagging in operation (1.2.1 (d))

Offside Power steering malfunctioning (2.1.5 (a))

Offside Rear Seat belt anchorage prescribed area strength or continuity significantly reduced Outer sill (7.1.1 (a) (i))

Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength Inner sill/chassis (front mounting) (5.3.6 (a) (i))

Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c))

Offside Rear Tyre has a tear, caused by separation or partial failure of its structure (5.2.3 (d) (ii)) DANGEROUS

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

Brake hose has slight corrosion to ferrule All hoses (1.1.12 (f) (i))

Front Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Nearside Front Tyre slightly damaged/cracking or perishing Due to age - 10 years old (5.2.3 (d) (ii))

Nearside Rear Tyre slightly damaged/cracking or perishing Due to age - 11 years old (5.2.3 (d) (ii))

Offside Front Tyre slightly damaged/cracking or perishing Due to age - 9 years old (5.2.3 (d) (ii))

Offside Rear Service brake binding but not excessively (1.2.1 (f))

Rear Suspension rod corroded but not seriously weakened All suspension rods (5.3.3 (b) (i))

Pass 2 Feb 2017 48,101 miles

Offside Front Anti-roll bar linkage ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Fail 25 Jan 2017 48,064 miles

Exhaust emissions carbon monoxide content after 2nd fast idle excessive (7.3.D.3)

Exhaust emissions hydrocarbon content after 2nd fast idle excessive (7.3.D.3)

Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (4.1.D.1a)

Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (4.1.D.1a)

Offside Front Anti-roll bar linkage ball joint dust cover deteriorated, but preventing the ingress of dirt (2.4.G.2)

Fail 11 Jan 2017 47,946 miles

Exhaust emissions carbon monoxide content after 2nd fast idle excessive (7.3.D.3)

Nearside Rear Lower Seat belt anchorage prescribed area is excessively corroded (5.2.6)

Nearside Rear Lower Subframe mounting prescribed area is excessively corroded (2.4.A.3)

Offside Rear Lower Seat belt anchorage prescribed area is excessively corroded (5.2.6)

Offside Rear Lower Subframe mounting prescribed area is excessively corroded (2.4.A.3)

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

Nearside Headlamp deteriorated but light output not reduced (1.7.5a)

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

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

Offside Headlamp deteriorated but light output not reduced (1.7.5a)

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

Oil leak corroded engine sump leaking slightly ()

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

Pass 14 Jan 2016 44,606 miles

coolant leak

general surface corrosion underside

offside brakes binding slightly

tested in wet

Pass 14 Apr 2014 44,537 miles

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

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

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

Pass 24 Jan 2012 42,155 miles
Fail 24 Jan 2012 42,155 miles

Nearside Front Anti-roll bar linkage synthetic mounting deteriorated resulting in excessive movement (2.4.G.2)

Offside Windscreen washer provides insufficient washer liquid (8.2.3)

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

Pass 14 Jun 2011 38,475 miles
Fail 14 Jun 2011 38,475 miles

Windscreen washer provides insufficient washer liquid (8.2.3)

Pass 14 Jun 2010 32,921 miles
Pass 27 May 2009 28,101 miles

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

Pass 10 Jun 2008 23,014 miles
Pass 5 Jun 2007 17,552 miles

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

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

Offside Front Shock absorber has a light misting of oil (2.7.3)

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

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

How Reliable is the Mazda RX-8?

Based on 304,386 MOT tests across 25,254 vehicles.

73.0%
Pass Rate
4,376
Miles/Year
23
Year Lifespan
25,254
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 20,515
Anti-roll bar linkage insecure 8,979
Brake pad(s) less than 1.5 mm thick 8,531
Windscreen wiper does not clear the windscreen effectively 8,088
Anti-roll bar linkage fractured 6,762
Full Mazda RX-8 reliability report

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EF04 BTZ is a 2004 Mazda RX-8 in Blue with a 2,616cc petrol engine. This vehicle has been through 18 MOT tests with a personal pass rate of 61.1%.

Across all 2004 Mazda RX-8 models, the average MOT pass rate is 72.1% with a typical mileage of 50,944 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 Mazda RX-8 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 20,515 recorded failures. If you're considering buying EF04 BTZ, it's worth having these areas checked by a mechanic before committing.

The Mazda RX-8 typically stays on UK roads for around 23 years. At 22 years old, this Mazda RX-8 is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of EF04 BTZ?

You can check the full history of EF04 BTZ by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was EF04 BTZ registered?

EF04 BTZ is a 2004 Mazda RX-8, first registered on 11 June 2004.

Is EF04 BTZ safe to buy?

The MOT history for EF04 BTZ 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 EF04 BTZ 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 EF04 BTZ. 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.