Front control arm bushes
usually 80,000–160,000 km · Wear part
Signs: Shimmy under braking
Fix: Replace bushes / arms
€250–600
Common faults, service intervals and costs
BMW Z4 (G29)
2018–now
2
engines covered
7
known faults
4,741
roadworthiness tests in the statistics
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The BMW Z4 (G29) has been built since 2018.
For this generation we cover 2 engines and 7 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Clutch wear: it usually appears at 120,000–200,000 km and costs €500–900 to fix.
In UK roadworthiness tests in 2024, at 0–50 thousand km this model most often failed on: tyres and wheels (6.5 %), lights, wipers and visibility (2.1 %), suspension (0.3 %). It fails more often than an average car of the same age and mileage on: tyres and wheels. It fails less often than average on: lights, wipers and visibility.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 2.0 petrol (BMW B48) | Petrol | Chain | 0W-20 / 0W-30 · BMW LL-17FE+ / LL-01 · ~5.25 L · every 15,000 km |
| 3.0 petrol (BMW B58) | Petrol | Chain | 0W-30 / 5W-30 · BMW Longlife-01 FE / LL-17 FE+ · every 15,000 km |
Faults typical of this model
Run-flat tyres (harsh, expensive)
usually 0–300,000 km · Wear part
Signs: Harsh ride; expensive to replace
Fix: Budget accordingly
free / recall
Faults by engine
2.0 petrol (BMW B48)
Valve cover / oil filter housing seep
usually 100,000–180,000 km · Wear part
Signs: Oil misting, burning smell
Fix: Reseal
€250–600
Coolant loss (plastic coolant pipes / expansion tank)
usually 80,000–180,000 km · Medium risk
Signs: Coolant warning, sweet smell, level drops
Fix: Find and replace the leaking pipe or tank
€150–600
3.0 petrol (BMW B58)
Coolant loss (plastic coolant pipes / expansion tank)
usually 80,000–180,000 km · Medium risk
Signs: Coolant warning, sweet smell, level drops
Fix: Find and replace the leaking pipe or tank
€150–600
Oil filter housing gasket leak
usually 100,000–200,000 km · Wear part
Signs: Oil smell, oil on the engine or the drive belt
Fix: Replace the gasket
€150–500
Gearboxes
Steptronic (ZF 6HP / 8HP)
Torque converter / valve body
usually 150,000–250,000 km · Wear part
Signs: Delayed or harsh shifts
Fix: Fluid service, repair
€300–2,500
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Scheduled service
Intervals and typical prices for the 2.0 petrol (BMW B48) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Automatic transmission fluidTransmission | every 90,000 km | €200–450 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 4,741 tests.
| thousand km | 0–50 | 50–100 |
|---|---|---|
| Brakes | 0.1 % | 0.4 % |
| Suspension | 0.3 % | 1.1 % |
| Steering | 0.1 % | 0.0 % |
| Tyres and wheels | 6.5 % | 11.2 % |
| Lights, wipers and visibility | 2.1 % | 2.0 % |
| Body and corrosion | 0.1 % | 0.0 % |
| Exhaust, emissions and leaks | 0.2 % | 0.0 % |
Roadworthiness tests in the Netherlands by age
Share of this model's Dutch fleet that had a defect in each system at a roadworthiness test (APK) in 2025. Bold red means more often and green less often than an average car of the same age and fuel. Sample: 2,129 cars.
| age (years) | 3–5 | 6–8 |
|---|---|---|
| Brakes | 0.0 % | 0.1 % |
| Suspension | 0.1 % | 0.3 % |
| Steering | 0.0 % | 0.0 % |
| Tyres and wheels | 2.3 % | 6.2 % |
| Lights, wipers and visibility | 2.0 % | 3.7 % |
| Body and corrosion | 0.0 % | 0.0 % |
| Exhaust, emissions and leaks | 0.0 % | 0.0 % |
Most common engine versions in the EU
New cars of this generation registered in the EU, Iceland and Norway 2010–2025: 43,370, of which 17 in Croatia. The share shows how common each version is.
| Version | Share | Years | CO₂ | Fuel use |
|---|---|---|---|---|
| 2.0 petrol (BMW B48)2.0 (1,998 cm³) · 145 kW (197 hp) · Petrol | 42.8 % | 2018–2025 | 162 g/km | 7.2 L |
| 3.0 petrol (BMW B58)3.0 (2,998 cm³) · 250 kW (340 hp) · Petrol | 39.0 % | 2018–2025 | 185 g/km | 8.0 L |
| 2.0 petrol (BMW B48)2.0 (1,998 cm³) · 190 kW (258 hp) · Petrol | 16.7 % | 2018–2025 | 166 g/km | 7.2 L |
| 2.0 petrol (BMW B48)2.0 (1,998 cm³) · 120 kW (163 hp) · Petrol | 1.3 % | 2018–2025 | 162 g/km | 7.2 L |
Source: European Environment Agency (EEA), monitoring of CO₂ emissions from new passenger cars, CC BY 4.0. CO₂ and fuel use are official type-approval values (WLTP from 2021), not real-world consumption.
Common questions
Does the BMW Z4 (G29) have a timing chain or a timing belt?
2.0 petrol (BMW B48): chain; 3.0 petrol (BMW B58): chain.
What are the known problems with the BMW Z4 (G29)?
The faults with the highest risk: clutch wear (120,000–200,000 km, €500–900); coolant loss (plastic coolant pipes / expansion tank) (80,000–180,000 km, €150–600). The full list by engine is on this page.
What does the BMW Z4 (G29) most often fail its roadworthiness test on?
In UK roadworthiness tests in 2024, at 0–50 thousand km this model most often failed on: tyres and wheels (6.5 %), lights, wipers and visibility (2.1 %), suspension (0.3 %). It fails more often than an average car of the same age and mileage on: tyres and wheels. It fails less often than average on: lights, wipers and visibility.
What should you check when buying a used BMW Z4 (G29)?
Before you buy, ask an authorised dealer to check by VIN whether the car has any open recalls. On the test drive, watch for these signs: slipping, high bite point; coolant warning, sweet smell, level drops. The full checklist is in the guide to buying a used car.
Other generations
Models with the same engines
These models share engines with this car, so they share some of its faults too.
BMW 3 Series (F30) 2012–2019BMW 1 Series (F20) 2011–2019MINI Hatch (F56) 2014–2023BMW 5 Series (G30) 2017–2023BMW 3 Series (G20) 2019–BMW 4 Series (F32) 2013–2020BMW X1 (F48) 2015–2022BMW X3 (G01) 2017–2024
Other BMW models
BMW 8 Series (G15) 2018–BMW X2 (F39) 2018–2023BMW X4 (G02) 2018–BMW X5 (G05) 2018–BMW 1 Series (F40) 2019–2024BMW 6 Series Gran Turismo (G32) 2017–2023BMW X6 (G06) 2019–BMW X7 (G07) 2019–BMW 2 Series Gran Coupé (F44) 2020–2024BMW 4 Series (G22) 2020–
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026