Bilstein 36-266555 B3 OE Replacement Rear Coil Spring - BMW 1 Series E81 E87 E88 & 3 Series E90 E92 - Rear Axle, Standard Height - Fits 120i 123d 328i

Bilstein B3 36-266555 Factory-Spec Rear Suspension Coil for BMW 1 Series E81 E87 E88 and BMW 3 Series E90 E92

Bring your BMW back to its proper stock height and comfort with the Bilstein B3 rear suspension coil, part number 36-266555 (BILSTEIN-36-266555). This high quality, direct-fit back axle spring is designed for the E8x 1 Series and E9x 3 Series platforms, covering popular petrol and diesel models including 120i, 123d and 328i. Ideal for anyone searching for a BMW rear spring replacement UK, BMW E90 rear suspension coil, E81 E87 E88 back axle spring or a standard height BMW spring that restores original ride and handling without lowering.

We run these Bilstein B3 coils on our own vehicles and have installed them for many customers. Feedback is consistently positive, with owners reporting a stable rear end, correct ride height, reduced creaks and rattles and that just-right OEM feel.

Why this Bilstein B3 rear spring is the smart choice

• Factory-spec geometry for precise fitment on E81 E87 E88 and E90 E92 back axle
• Premium chrome-silicon or chrome-vanadium wire for strength and crack resistance
• Hot-set manufacturing for lasting height control and to combat long-term sag
• Shot-peened and coated for superb rust protection and extended service life
• Optimised coil shapes for quiet operation, comfort and confident stability
• Matches original spring rate characteristics for genuine BMW road manners

Perfect for

Sorting a snapped or tired rear spring, fixing an MOT fail, correcting uneven stance, or refreshing the rear end on daily-driven cars that need stock height and OEM behaviour. Great alternative search terms include BMW 3 Series rear helical spring, E92 rear spring stock height, BMW 1 Series rear spring UK, BMW suspension coil rear and Bilstein B3 36-266555 spring.

Fitment and applications

Position: Rear back axle. Suits the following BMW models:

BMW 1 Series

• E81 3-door hatch 09.2006 to 12.2011
  • 116d, 118d, 120d, 120i, 123d, 130i
• E87 5-door hatch 02.2003 to 01.2013
  • 120d, 120i, 123d, 130i
• E88 Convertible 12.2007 to 12.2013
  • 120i, 125i, 128i

BMW 3 Series

• E90 Saloon 02.2004 to 02.2012
  • 316i, 318i, 320i, 320si, 323i, 325i, 328i, 330i, 335i, 316d, 318d, 320d
• E92 Coupé 01.2005 to 12.2013
  • 320d xDrive, 325d, 330d, 330d xDrive, 330xd, 335i xDrive, 335xi

Common queries this part solves: BMW rear spring snapped, E90 rear spring stock height, E87 rear coil replacement, E88 convertible back spring, BMW 120i rear suspension coil, BMW 123d spring set, BMW 328i rear helical.

Key details

• Brand: Bilstein
• Series: B3 factory-spec replacement
• Location: Rear axle
• Part number: 36-266555 / BILSTEIN-36-266555
• EAN: 4025258787899
• UPC: 651860791791

Pro tip

For balanced handling and even height left to right, replace rear springs as a pair.

Professional fitting

Want it installed correctly first time? Book expert fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

We will check compatibility before dispatch

Provide your UK registration or last 7 of the VIN at checkout and we will confirm this Bilstein B3 36-266555 rear spring suits your specific BMW configuration.