BodyworkHigh
Folding hardtop roof mechanism motor and microswitch failures
- Typically appears
- 60,000+ miles
- What to inspect
- Operate the roof fully several times and listen for grinding or hesitation
2014 BMW Z4 problems
A 2014 BMW Z4 is now 12 years old, so an average example has covered around 162,000 miles. A late-run car · the most reliable part of the generation, but higher-mileage wear items are usually the deciding factor. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2014 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
Quick answer
The 2014 BMW Z4 is 12 years old, so an average example has covered roughly 162,000 miles. At that mileage 7 of the documented faults are already due, so check those first.
Faults a 2014 example has usually reached
Documented onset mileage is at or below the ~162k miles an average 2014 car has covered.
CoolingMedium
Water pump and thermostat failures on N20 and N54 engines
- Typically appears
- 60,000+ miles
- What to inspect
- Check coolant level and service history for cooling system replacements
EngineMedium
High-pressure fuel pump failures on N54 turbo petrol
- Typically appears
- 50,000+ miles
- What to inspect
- Check for hard starting or hesitation and stored fault codes
SuspensionMedium
Front control arm bushes wearing causing vague steering
- Typically appears
- 60,000+ miles
- What to inspect
- Check for clonks over bumps and vague feel through the steering
EngineHigh
High-pitched whining noise indicating timing chain guide wear on N20 engines (20i and 28i models built before 2015).
- Typically appears
- 50,000-80,000 miles
- What to inspect
- Start the engine from cold, hold the revs at 3,000 rpm, and listen closely for a distinct siren-like whine from the front of the engine block.
WheelsMedium
Slow tyre pressure loss and vibration due to cracked inner rims on 19-inch factory alloy wheels (especially Style 296).
- Typically appears
- 40,000+ miles
- What to inspect
- Check the dashboard for tyre pressure warnings, then use a torch to visually inspect the inner edge of the rear alloy wheels for hairline cracks.
ExhaustMedium
Metallic rattling noise on deceleration caused by worn turbocharger wastegate actuators on N54 engines (35i and 35is models).
- Typically appears
- 60,000-100,000 miles
- What to inspect
- With the driver's door open, rev the engine to 3,500 rpm and abruptly release the throttle. Listen for a metallic rattling or buzzing sound from the exhaust side.
Faults that appear at any mileage
Age, electronics and build-related issues that are not mileage-driven.
ElectricalLow
Convertible roof warning sensors and switch faults
- Typically appears
- Age-related
- What to inspect
- Test roof operation warning lights and switches for consistent function
Inspecting a 2014 BMW Z4?
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carBMW Z4 · frequently asked questions
Is the folding roof reliable?
It can develop motor and sensor faults with age, so testing it fully before buying is essential.
Which engine is the safer choice?
The naturally aspirated six-cylinder units are generally more dependable than the N54 turbo.
Are cooling system failures common?
Yes, water pumps and thermostats fail periodically, so check for a documented replacement history.
Is the Z4 costly to repair?
Roof and turbo engine repairs can be expensive, so a full history is valuable reassurance.
Should I be concerned about the ride quality on factory run-flat tyres?
The E89 was fitted with run-flat tyres from the factory, which significantly stiffen the ride and increase the risk of alloy wheel cracking on poorly surfaced UK roads. Many owners swap to standard premium tyres for better compliance. If a vehicle has standard tyres fitted, ensure a puncture repair mobility kit is present in the boot.
Are there any specific checks required for the automatic transmissions?
The E89 uses a six-speed ZF, an eight-speed ZF, or a seven-speed dual-clutch transmission on the 35i and 35is models. The DCT can suffer from mechatronic fluid leaks and jerky low-speed shifts. Always check for smooth engagement from a standstill and ensure there are no transmission fault warnings on the iDrive display.