Bilstein B3 Rear Coil/Helical Spring 36-301140 for BMW X5 E70 2006-2013 - OE Spec Rear Axle Suspension Spring, Stock Height Replacement for xDrive 30d 35d 40d 30i 35i 50i - fits coil-spring models (non-air)

Bilstein B3 36-301140 Back Suspension Spring for BMW X5 E70 2006-2013

Restore your BMW X5 E70 to its original poise with this genuine Bilstein B3 rear helical spring, part numbers 36-301140 and BILSTEIN-36-301140. Designed to match factory specification, it reinstates correct vehicle height, tight body control and day-to-day comfort on the tail end of your X5 without compromise.

We fit these in our own workshop and customers consistently praise the transformation from tired, sagging hardware to a confident, composed drive. If your X5 feels unsettled over bumps or sits low at the back, this is the exact rear spring you need to bring it back to how BMW intended.

Why this Bilstein B3 is a brilliant choice

• Exact-fit component for the back of the vehicle with OE-grade performance
• Returns stock ride height, stability and comfort for everyday and motorway use
• Manufactured from premium spring steel for superb strength and crack resistance
• Heat-treated and set to minimise height loss and sag over time
• Stress-relieved surface treatment and protective coating for long service life
• Optimised end shapes such as pigtail and minibloc designs where specified
• Engineered to original equipment standards for reliability you can trust

Vehicle coverage

Fits BMW X5 E70 models from 2006 to 2013, including:

• Petrol: xDrive 30i, 3.0 si, xDrive 35i, xDrive 40i, xDrive 50i
• Diesel: 3.0 3.0d, xDrive 30d, 3.0 d, 3.0 sd, xDrive 35d, xDrive 40d

Position

Rear of vehicle

Part numbers and identifiers

• Bilstein reference: 36-301140
• Supplier code: BILSTEIN-36-301140
• EAN: 4025258861810
• UPC: 651860869308

Fitting and support

For balanced handling, we recommend replacing springs in axle pairs. Professional installation is advised.

Prefer expert fitting? Book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

We can verify fitment before shipping. Provide your UK registration number or the last 7 of your VIN at checkout so we can confirm this spring suits your exact X5.

What this spring delivers

• Factory-correct stance and alignment on the back end
• Confident cornering and improved stability under load
• Quiet, consistent operation with OE-level refinement

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Choose Bilstein B3 for proven durability and a precise, direct fit that just works. Add to basket and bring your X5 E70 back to its best.