Coil Spring - KYB - RA3399
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Product Information
Full details
This KYB RA3399 coil spring is designed for the front axle of specific BMW X1 (E84) models with standard suspension. It offers a reliable replacement part to restore your vehicle's ride height and handling. A potential caveat is that it is not suitable for models with M technology or sports suspension. Key features include durable construction, direct fitment for compatible models, and adherence to OEM specifications.
All features
| Model Part Number | RA3399 |
|---|---|
| Brand | KYB |
Extended Product Information
FAQs
What models is the KYB RA3399 coil spring compatible with?
This spring is designed for the front axle of BMW X1 (E84) models, specifically sDrive 18 d SUV Diesel variants with standard suspension, manufactured between approximately March 2009 and June 2015. It is not compatible with M technology or sports suspension.
Can I use this spring if my car has sports suspension?
No, this KYB RA3399 coil spring is specifically designed for vehicles with standard suspension and is not compatible with sports suspension or M technology.
Do I need to replace both front springs?
It is generally recommended to replace coil springs in pairs (both left and right on the same axle) to ensure even ride height and consistent handling characteristics.
What are the OEM part numbers this spring replaces?
This KYB RA3399 coil spring is a cross-reference for BMW OEM part numbers 31336790098 and 31336795390.
How can I be sure this part will fit my car?
Verify compatibility using your vehicle's VIN, checking that your model and year match the description (BMW X1 E84 sDrive 18 d Diesel, standard suspension) and confirming the OEM or cross-reference part numbers.
What is the warranty period for KYB suspension parts?
Warranty information can vary. Please refer to the manufacturer's warranty documentation or contact the retailer for specific details regarding the KYB RA3399 coil spring.
Troubleshooting
Vehicle sits unevenly or sags on one side.
This could indicate a broken or weakened coil spring. Replacement of the affected spring, and potentially its counterpart on the other side of the axle, is recommended.
Clunking or rattling noises from the front suspension.
While not always the spring itself, a damaged spring can contribute to suspension noise. Inspect the spring for cracks and ensure it is properly seated. Also, check other suspension components like shocks and bushings.
Poor handling or excessive body roll.
A degraded coil spring can compromise suspension performance. Ensure the correct spring is installed and that it is not damaged. Check tire pressure and other suspension components.
Pros and Cons
Pros
- Designed for specific BMW X1 (E84) models.
- Restores original ride height and handling.
- Durable construction for longevity.
- Meets OEM specifications for compatibility.
Cons
- Not compatible with M technology or sports suspension.
- Only suitable for front axle application.
- Requires professional installation for safety.
Setup, Compatibility & Care
Compatibility: This KYB RA3399 coil spring is designed for the front axle of BMW X1 (E84) models. It is specifically compatible with sDrive 18 d SUV Diesel variants from approximately 12/2009 to 06/2015 and 03/2009 to 06/2015, *only if the vehicle is equipped with standard suspension and not M technology or sports suspension*. Always verify fitment with your vehicle's VIN and original part numbers (BMW 31336790098, 31336795390) or cross-reference part numbers (KILEN 11102).
Setup: Installation of suspension components should be performed by a qualified mechanic. It requires specialized tools and knowledge of vehicle safety procedures. Ensure the vehicle is properly supported and all safety precautions are taken during installation.
Care: Coil springs are generally maintenance-free. However, regular visual inspection of the suspension system for any signs of damage, rust, or cracks is recommended. Keep the springs clean from excessive road salt or debris that could accelerate corrosion.