This is the front right (passenger side) control arm from FEBI BILSTEIN (280171), used in the front suspension of the BMW 3 Series E90 Sedan (2005-2012) and E91, E92, E93 chassis. Known in the market as "Z Rot", this critical part connects the anti-roll bar (stabilizer) to the front shock absorber, ensuring your vehicle's grip on the road. It eliminates annoying "clunking" noises from the front suspension on rough roads and prevents body roll and lean in corners, restoring the sporty driving dynamics of your BMW.
- Maximum Cornering Stability: Balances the centrifugal force on the body to prevent roll and ensures safe driving at high speeds.
- Quiet Front Suspension: Completely isolates rattling and metallic knocking noises caused by worn joints.
- OEM Manufacturer Quality: Manufactured to original factory standards from corrosion-resistant steel and long-lasting sealed rubber dust boots.
- Right Side: Specifically designed for installation on the front right (passenger side).
Technical Details
| Brand |
FEBI BILSTEIN (Germany) |
| Product Code |
280171 |
| Possible OEM References |
31 35 6 765 934 (Right Reference) |
| Installation Location |
Front Axle / Right Side (Passenger Side) |
| Length |
Approximately 295 mm - 300 mm |
Frequently Asked Questions (FAQ)
Can I install this on the left side (driver's side)? **NO.** The curves and joint angles of the front control arms in BMW E90 chassis are asymmetric. The slope of the right side is different. Forcing this product onto the left side will cause the arm to rub against the shock absorber when turning the steering wheel, leading to breakage at the first pothole.
Is it okay to just replace the right side? Technically possible. However, if the right Z rot has started to make noise due to play, the left side is likely nearing the end of its lifespan as well. To ensure equal flex in the front suspension and save on labor costs, it is recommended to replace as a **Right and Left Set**.
Does it come with installation nuts? Yes, all FEBI boxes come with new "fiber-reinforced (self-locking)" installation nuts attached to the ends of the rot. You won't need to use old, worn-out nuts.
