Bilstein B3 Rear Coil Spring 36-313266 – BMW 3 Series E91 Touring/Estate/Wagon (2004-2012) & E93 Convertible/Cabriolet (2006-2013) – Rear Axle OE Spec OEM Quality Standard Height Direct Fit Replacement Suspension Spring

Bilstein B3 Rear Suspension Spring BILSTEIN-36-313266 for BMW 3 Series E91 Estate and E93 Cabriolet

Bring back the factory ride, quietness and confidence with this premium rear helical spring from Bilstein. The B3 replacement spring restores standard ride height and comfort on the back end of your BMW 3 Series E91 estate and E93 cabriolet, delivering OEM-level control without harshness. Ideal if your car has a snapped coil, sagging rear, uneven stance or MOT advisory for a broken spring.

Part number: BILSTEIN-36-313266 | Also referenced as: 36-313266
EAN: 4025258864552 | UPC: 651860871745

Why this Bilstein B3 spring is the smart choice

• Direct bolt-on rear spring built to factory specification for precise fit and correct ride height
• Engineered spring rate to match original characteristics for predictable handling and stability
• High-strength spring steel for excellent break resistance and long-term reliability
• Hot-set after forming to minimise height loss and maintain consistency over time
• Optimised end shapes and central force design for quiet operation with reduced coil noise
• Surface treatment and corrosion-resistant coating for durability in UK weather
• Perfect for suspension refresh, broken coil replacement or restoring stock comfort

We have installed Bilstein B3 springs on our own cars and for countless customers. Feedback is consistently positive for ride quality, factory feel and longevity. If you want a no-compromise standard-height solution from a trusted brand, this is it.

Fitment and position

Fitting location: Rear axle
Chassis: BMW 3 Series E91 estate 2004 to 2012 and BMW 3 Series E93 convertible 2006 to 2013

Compatible engine variants include

• E91 estate: 316i, 325i, 330i, 335i, 316d, 318d, 320d, 325d, 330d, 335d
• E93 cabriolet: 318i, 320i, 325i, 330i, 335i, 320d, 325d

How to make sure it fits your car

We will verify compatibility before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout for a quick confirmation.

Professional installation

Want it fitted by specialists? MJ Modifications, Warwickshire can install this rear spring and carry out a suspension health check. Request a quote at info@mjmodifications.co.uk. For balanced handling we recommend replacing rear springs in pairs.

What you can expect after fitting

• Stock ride height and level stance on the rear of the car
• Improved comfort and reduced knocks or clunks from a tired or broken coil
• Sharper, more predictable cornering with OE-style compliance
• Peace of mind from a quality brand with proven reliability

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Brand and range

Brand: Bilstein
Range: B3 OE Replacement