Bilstein 36-248872 Coil Springs

Bilstein 36-248872 Coil Springs

The Bilstein 36-248872 is a high‑performance coil spring designed for the rear suspension of Audi vehicles, including the A4 Avant (8K5, B8), A4 Limousine (8K2, B8) and A5 Coupe (8T3). It is engineered to deliver precise handling, improved ride comfort, and superior durability under demanding driving conditions.

Key Technical Features

• Type: Helical coil spring (spiralfeder)
• Application: Rear axle (Hinterachse) of Audi models
• Model Numbers: 8K0511115GQ, 8K0511115GR, 8K0511115GS – all interchangeable with the 36-248872 designation.
• Material: High‑strength steel alloy treated for corrosion resistance and fatigue life.
• Load Capacity: Designed to support standard passenger loads while maintaining optimal spring rate.
• Spring Rate: Calibrated to match OEM specifications, ensuring consistent handling dynamics.

Design Philosophy

The Bilstein 36-248872 is built on the company’s long‑standing commitment to precision engineering. Each spring undergoes rigorous testing for:

• Fatigue Resistance: Withstands thousands of compression cycles without loss of performance.
• Temperature Stability: Maintains consistent stiffness across a wide range of operating temperatures.
• Corrosion Protection: Surface treatment prevents rust and extends service life even in harsh climates.

Installation & Compatibility

When replacing the original coil spring, the Bilstein 36-248872 can be installed using standard tools. The spring’s dimensions match OEM specifications, so no additional modifications to the suspension geometry are required. It is fully compatible with:

• Audi A4 Avant (8K5, B8)
• Audi A4 Limousine (8K2, B8)
• Audi A5 Coupe (8T3)

For vehicles equipped with Bilstein’s B3 series dampers, pairing the 36-248872 spring ensures a balanced suspension system that maximizes handling performance.

Performance Benefits

• Enhanced Handling: The precise spring rate reduces body roll and improves cornering stability.
• Improved Ride Comfort: Smooth absorption of road irregularities keeps occupants comfortable during long drives.
• Consistent Tuning: Maintains the vehicle’s original suspension geometry, preserving steering feel and braking performance.
• Longevity: Robust construction reduces maintenance frequency compared to standard springs.

Maintenance Tips

Although the Bilstein 36-248872 is engineered for durability, regular inspection can help detect early signs of wear:

• Check for visible cracks or deformation after heavy impacts.
• Inspect mounting bolts and bushings for tightness and corrosion.
• Ensure that the spring’s preload remains within manufacturer specifications.

Why Choose Bilstein?

Bilstein is a globally recognized name in suspension technology, known for its rigorous quality control and innovative designs. The 36-248872 coil spring exemplifies this reputation by offering:

• OEM‑grade performance that matches or exceeds the original specifications.
• Reliability backed by extensive testing across various climates and driving conditions.
• A design that seamlessly integrates with existing suspension components, eliminating the need for costly aftermarket modifications.

Conclusion

The Bilstein 36-248872 coil spring is a premium choice for Audi owners seeking to maintain or enhance their vehicle’s rear suspension performance. Its precise engineering, robust construction, and full compatibility with key Audi models make it an ideal replacement that delivers both comfort and handling excellence.