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OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Rear Left Coil Spring (Separate)
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Wiki page
3L I6 Naturally Aspirated N52B30 (240hp).
Quick reference
Verify fitment for aftermarket vs OEM parts
Mid-cycle changes may affect compatibility
Check local regulations for parts sourcing
Context
For the 2011 BMW 528i, the rear left coil spring is a critical suspension component that helps maintain ride quality and vehicle stability. The OEM part number for this spring is 33526770721, which is compatible with 2008-2016 BMW 5 Series models, including the 528i and 535i. When replacing the coil spring, it's essential to inspect for signs of sagging or damage, as these can affect handling. During installation, ensure the vehicle is properly supported, and consider replacing the spring pads for optimal performance. Additionally, while 33526770722 is another related part number, verify the specific application as it may differ in spring rate. Always use caution and consult a professional if you're uncertain about the installation process.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2011 | BMW | 528i | 3L I6 Naturally Aspirated N52B30 (240hp) | 80% |
Available parts

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