2005 BMW Z4 · 7,853 MOT tests
2005 BMW Z4 reliability
2005 BMW Z4s fail 32.7% of first MOT tests, 23% fewer MOT fails than the average car its age and mileage, ranking 14 of 16 Z4 years (7,853 DVSA tests, 2022 to 2024).
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- first-time fail rate (all BMW Z4s: 22.2%)
- 32.7%
- first-time fail rate (all BMW Z4s: 22.2%)
- fails than cars of the same age and mileage
- 23% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 18
- 91,429
- typical miles at its MOT, aged about 18
- MOT tests, 2022 to 2024
- 7,853
- MOT tests, 2022 to 2024
Year on year
2005 against the years either side
- 2004 cars: 26% fewer MOT fails than the average car its age (the 2005 car does worse)
- 2006 cars: 31% fewer MOT fails than the average car its age (the 2005 car does worse)
- Weak spot: seat belts and airbags, 4.9% of tests fail here (91% above cars of the same age and mileage).
- Strong point: body, chassis and structure, 77% fewer fails than comparable cars.
- Plates: a 2005 car carries a 54 plate (January–February 2005), or a 05 plate (March–August 2005), or a 55 plate (September–December 2005).
Common problems
What fails on a 2005 BMW Z4
Fail rate by area
- Suspension11.9%
- Brakes11.3%
- Lights and electrics10.4%
- Exhaust, emissions and leaks8.8%
- Windscreen, wipers and mirrors5.9%
- Tyres5%
- Seat belts and airbags4.9%
Average for cars of the same age and mileage
Top failures
Engine warning light inoperative or lit 4.15%
An engine warning light that is lit or not working can hide faults, so diagnosis is needed before buying.
Airbag warning lamp shows fault 4.07%
A lit airbag warning means the airbag system may not deploy in a crash, so it needs diagnosing and repairing.
Rigid brake pipe excessively corroded 3.2%
Badly corroded brake pipes can leak or fail, which can cause a loss of braking, so repair is urgent.
Wiper blade not clearing windscreen 2.43%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Suspension ball joint excessively worn 2.14%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Suspension arm pin/bush excessively worn 2.04%
Worn suspension arm bushes allow the wheel to move unpredictably, affecting steering, handling and tyre wear.
Common advisories
Brake pipes corroded and greasy (18.18%) · Engine oil leak, not excessive (13.19%) · Tyre worn close to legal limit (11.84%) · Brake disc pitted or scored (8.14%) · Tyre slightly damaged or cracking (5.93%) · Suspension arm pin/bush showing wear (5.88%)
Other years
Every BMW Z4 year
The full picture: BMW Z4 reliability. Before you pay for any BMW Z4, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2005 BMW Z4 reliable?
2005 BMW Z4s fail 32.7% of first MOT tests, 23% fewer MOT fails than the average car its age and mileage, ranking 14 of 16 Z4 years (7,853 DVSA tests, 2022 to 2024).
What fails on a 2005 BMW Z4 MOT?
Most often engine warning light inoperative or lit (4.15% of tests), airbag warning lamp shows fault (4.07% of tests), rigid brake pipe excessively corroded (3.2% of tests).
How many miles should a 2005 BMW Z4 have done?
At its MOT aged about 18, a typical 2005 BMW Z4 shows 91,429 miles. Much higher or lower is worth asking about.
What plate is a 2005 car?
A car first registered in 2005 carries a 54 plate (January–February 2005), or a 05 plate (March–August 2005), or a 55 plate (September–December 2005).
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