CARFIX

BMW Z4 si (2006–2008)

The BMW Z4 (E85 roadster and E86 coupe) from 2006-2008 offers a uniquely sporty experience here in New Zealand. These models are known for their sharp handling and stylish design. However, like all used vehicles, they have specific areas that require attention. Let's explore the common issues and how to keep your Z4 in top condition for those winding NZ roads.

Parts for the BMW Z4 si

Known issues

Common issues include oil leaks (valve cover, oil filter housing), cooling system problems (expansion tank failures), and electrical gremlins. The suspension bushings are prone to wear, affecting handling. Like other BMWs of this era, VANOS issues on the six-cylinder engines can arise. Convertible tops (E85) can experience hydraulic problems and wear. The E86 coupes can suffer from moisture issues in the tail lights causing electrical issues.

WOF tips

Focus on tyre condition, brake wear (rotors and pads), and suspension components. Check for any fluid leaks. Pay close attention to the operation of the convertible top (E85) and ensure all lights are functioning correctly. Rust is less common but still worth inspecting along the underbody.

About the BMW Z4 si

With potent engines and rear-wheel drive, the Z4 provides a thrilling driving experience. The inline-six engines, in particular, are highly regarded. However, proper maintenance is key to preventing issues and ensuring longevity. Be especially attentive to common BMW weak points, as these can become more pronounced with the age of the vehicle.

Questions owners ask

What are some common problems I should look out for on a 2006-2008 BMW Z4?
Common issues on the 2006-2008 BMW Z4 include oil leaks from the valve cover and oil filter housing, cooling system problems like expansion tank failures, and electrical issues. Suspension bushings are also prone to wear, and VANOS issues can occur on the six-cylinder engines. If you have the E85 convertible, watch out for hydraulic top problems. E86 coupes can suffer moisture issues in the tail lights.
Where can I get parts for my BMW Z4 2006–2008 in NZ?
CARFIX stocks 396 SKUs for the 2006-2008 BMW Z4. You can find a wide range of parts, including brake pads, filters, suspension components, and more, all available for delivery throughout New Zealand.
What should I check on my BMW Z4 (2006-2008) to pass a WOF in New Zealand?
For a WOF, focus on tyre condition and brake wear (rotors and pads). Inspect the suspension components for wear or damage. Check for any fluid leaks under the car. If you have an E85 convertible, make sure the convertible top operates smoothly. Ensure all lights, including tail lights, are functioning correctly, especially on E86 coupes which can suffer moisture issues.
How often should I service my 2006-2008 BMW Z4?
The recommended service interval for the 2006-2008 BMW Z4 is every 15,000km. Regular servicing is crucial to prevent common issues and ensure the longevity of the engine and other components.
Are there any known issues with the convertible top on the BMW Z4 (E85)?
Yes, the E85 BMW Z4 convertible tops can experience hydraulic problems and general wear and tear over time. It's important to regularly inspect and maintain the top to prevent issues.
What are VANOS issues on the BMW Z4 and how do I prevent them?
VANOS issues are common on the six-cylinder engines of the BMW Z4. These issues relate to the variable valve timing system. Regular oil changes with high-quality oil, following the 15,000km service interval, can help prevent VANOS problems. Listen for any unusual engine noises, especially at startup, which could indicate a VANOS issue.
Is the BMW Z4 2006-2008 prone to rust?
Rust is less common on the BMW Z4 2006-2008 compared to some older vehicles, but it's still worth inspecting the underbody for any signs of corrosion, especially if the vehicle has been exposed to coastal environments or harsh winter conditions.