BMW Z4 Roadster 2.5 I E85
Drivetrain components and spare parts for the BMW Z4 Roadster 2.5 I E85. Confirm your vehicle make, model and engine variant before ordering.
Products for BMW Z4 Roadster 2.5 I E85
- ABS teeth: 48
- Inner diameter: 79 mm
- Outer diameter: 83 mm
- Width: 12 mm
- Position: Rear right
- Flange diameter: 100 mm
- Total length: 668 mm
- Splines wheel side: 27
- ABS teeth: 48
- Diameter: 30 mm
- Hole spacing c/c: 160 mm
- Bearing thickness: 35 mm
- ABS teeth: 48
- Inner diameter: 79 mm
- Outer diameter: 82 mm
- Width: 12 mm
- Position: Rear left, Rear right
- Flange diameter: 100 mm
- Total length: 614 mm
- Splines wheel side: 27
- ABS teeth: 48
- Flange diameter: 94 mm
- Total length: 675 mm
- Splines wheel side: 27
- Flange diameter: 94 mm
- Total length: 610 mm
- Splines wheel side: 27
- Position: Rear, Outer
- Inner splines: 25
- Outer diameter: 94 mm
- Splines wheel side: 27
- ABS teeth: 48
- Flange diameter: 100 mm
- Total length: 665 mm
- Splines wheel side: 27
- Position: Rear left
- Total length: 620 mm
- Splines wheel side: 27
- Flange diameter: 100 mm
- Total length: 610 mm
- Splines wheel side: 27
Drivetrain for BMW Z4 Roadster 2.5 I E85
The BMW Z4 Roadster 2.5 I E85 is a car engineered for pure driving pleasure and precision. To keep this driving experience intact, the drivetrain must be in immaculate condition. The power transmission on a rear-wheel-drive sports car such as this is subjected to substantial strain, especially during spirited driving on twisting roads. Every component, from the gearbox out to the wheel hubs, must work seamlessly together to deliver the responsive feel BMW owners expect. At CVJoint24, we understand the technical requirements for this specific model and offer parts that meet or exceed original equipment specifications.
Maintaining the drivetrain on your BMW Z4 Roadster 2.5 I E85 is not merely about preventing breakdowns; it is also about preserving the car's distinctive character. Worn components can lead to vague handling and unwanted vibrations that detract from the open-top roadster experience. By choosing the right spare parts, you ensure that the torque from the straight-six engine reaches the tarmac efficiently and under control. Our range is tailored specifically to cover the most critical driveline points for this vehicle variant.
How the drivetrain is engineered on the BMW Z4 Roadster 2.5 I E85
The drivetrain layout on a BMW Z4 Roadster 2.5 I E85 follows the classic configuration of a longitudinally mounted engine and rear-wheel drive. Power generated by the engine is transferred via the gearbox to a central propeller shaft. This prop shaft runs along the centre of the car and delivers rotational force to the rear differential. From the differential, power is distributed out to the rear wheels via two drive shafts. This configuration gives the car its balanced weight distribution and sharp driving dynamics, but it also demands that every link in the driveline remains in good order.
The drive shafts on this model are fitted with CV joints that accommodate suspension travel whilst transmitting power. Because the BMW Z4 Roadster 2.5 I E85 features a relatively low centre of gravity and a firm sports suspension setup, these components frequently operate at demanding angles. In addition, the ABS system plays a vital role in stability and safety, with ABS rings mounted on the drive shafts sending essential wheel-speed signals to the control modules. Understanding this interaction is key to selecting the correct car parts when carrying out repairs or replacements.
Common faults and symptoms
Several telltale signs indicate that the drivetrain on your BMW Z4 Roadster 2.5 I E85 requires attention. One of the most frequent symptoms is vibration felt through the bodyshell or seat under acceleration. This can often be traced back to imbalance or wear in the propeller shaft or its centre bearing. If vibrations occur at specific cruising speeds instead, it may indicate that a rear drive shaft has begun to wear out. Acting quickly on these early symptoms helps you avoid costly consequential damage to the differential or gearbox.
Another common issue is unusual noise from the rear axle. A clicking or knocking sound when cornering sharply typically points to a worn outer constant velocity joint. BMW owners also frequently encounter an illuminated ABS warning light, often caused by a corroded, swollen or cracked ABS ring on the rear axle. This fault impairs ABS operation and can also interfere with Dynamic Stability Control (DSC), which is critical for roadholding. Keeping an ear out for these symptoms allows you to diagnose precisely which part needs replacing.
Common parts to replace on the BMW Z4 Roadster 2.5 I E85
When maintaining a BMW Z4 Roadster 2.5 I E85, certain driveline parts endure more stress than others. Drive shafts are a prime example, enduring high mechanical torque as well as exposure to road grit, moisture and temperature swings. We supply replacement drive shafts engineered to withstand the rigorous demands of spirited sports-car driving. Replacing an entire shaft assembly is often the most cost-effective and dependable solution when wear is advanced.
The prop shaft is another vital component that may require servicing, particularly on higher-mileage vehicles. Worn universal joints or a deteriorated centre bearing can lead to pronounced driveline vibrations. Beyond the main shafts, the ABS reluctor ring is a very common replacement item. Positioned in an exposed location on the wheel hub end of the drive shaft, it can corrode over time and provide distorted signals to the wheel-speed sensor. Fitting a new ABS ring restores the safety system cleanly without having to replace an otherwise sound driveshaft.
How to find the right part for your BMW Z4 Roadster 2.5 I E85
Navigate directly to the appropriate category for your BMW Z4 Roadster 2.5 I E85:
When diagnosing drivetrain problems, starting in the correct category saves time. Comparing the specific subcategories for the BMW Z4 Roadster 2.5 I E85 helps you distinguish between drive shaft, CV joint or propeller shaft issues and proceed to the exact parts that match your vehicle and symptoms.
- Drive shafts for BMW Z4 Roadster 2.5 I E85
- Propeller shafts for BMW Z4 Roadster 2.5 I E85
- ABS rings for BMW Z4 Roadster 2.5 I E85
Securing the exact match for a model variant such as the BMW Z4 Roadster 2.5 I E85 is essential for a straightforward repair. Although models across the BMW Z4 Roadster range share many characteristics, differences exist between engine sizes, gearboxes and production years. The most reliable method is to select your vehicle by make, model and engine variant in our store selector, ensuring that you view parts guaranteed to fit your exact specification.
To assist your search, we have gathered the key driveline categories for your vehicle here:
- Drive shafts for BMW Z4 Roadster 2.5 I E85
- Propeller shafts for BMW Z4 Roadster 2.5 I E85
- ABS rings for BMW Z4 Roadster 2.5 I E85
Why buy from CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist, operating from our central warehouse in Helsingborg, Sweden. We focus exclusively on driveline components, allowing us to provide technical expertise and depth of stock that general car parts stores rarely match. When you order parts for your BMW Z4 Roadster 2.5 I E85 from us, you get high-grade components backed by genuine specialist knowledge and accurate fitment data.
We combine reliable quality with fast, dependable shipping right across the European Union. We understand that your roadster is made to be driven, meaning you want minimal downtime in the garage and more time on the road. With competitive pricing, specialist customer support and an uncompromising focus on drivetrain components, CVJoint24 is your dedicated partner for BMW maintenance. Choose CVJoint24 and enjoy the reassurance of dealing with true driveline specialists.
Frequently Asked Questions about Drivetrain Parts for BMW Z4 Roadster 2.5 I E85
What are the most common signs of a failing drive shaft on my BMW Z4 E85?
The most common symptoms include clicking noises during sharp turns, vibrations under acceleration and, in some cases, grease leaking around the CV boots. If you notice any of these signs, you should inspect your drive shafts immediately.
Why is the ABS warning light on in my BMW Z4 Roadster 2.5 I E85?
A very common fault on this model is that the ABS ring on the rear axle has rusted or cracked. This causes the sensor to receive incorrect readings, triggering the warning light and potentially disabling both the ABS and stability control systems.
Can I replace just the ABS ring or do I have to replace the complete drive shaft?
On the BMW Z4 Roadster 2.5 I E85, it is often possible to replace just the ABS ring if the drive shaft and joints are otherwise in good condition. This is a significantly more cost-effective solution than replacing the entire shaft.
How do I know whether vibrations are coming from the propeller shaft or the drive shafts?
Vibrations from the propeller shaft are typically felt more centrally in the vehicle and are often linked to engine speed or specific speed intervals, whereas vibrations from drive shafts are usually more noticeable under load (acceleration) and can alter depending on steering angle.
Do these parts fit all engine variants of the Z4 E85?
No, drivetrain components can differ between variants such as the 2.2, 2.5 and 3.0 models. It is therefore vital to select your car's exact make, model and engine in our vehicle selector to ensure you get parts tailored specifically to the 2.5 I E85.
What does your fitment guarantee mean when I purchase drivetrain parts?
Our fitment guarantee means that when you select your vehicle's make, model and engine details when ordering and we confirm the part fits, we guarantee it will fit your car. In the unlikely event that an issue arises, we will help you find the correct part at no extra cost.