Bilstein B3 Rear Coil Spring 36-313273 - OEM Spec Rear Suspension Helical Spring for BMW 1

Bilstein B3 Rear Axle Coil Spring for BMW E8x and E92 Coupe — Part 36-313273

Restore the factory stance and confident road manners of your BMW with the Bilstein B3 rear coil spring, part number 36-313273. This original equipment grade spring brings back the ride height, comfort and stability your car left the factory with, delivering the durability and precision fit BMW owners expect from Bilstein.

Perfect when replacing a snapped rear spring or correcting a sagging back end, this B3 spring is engineered for the E81, E82, E87 1 Series and the E92 3 Series Coupe across popular petrol and diesel variants. At MJ Modifications we have installed these on our own vehicles and on countless customer cars, and the feedback on ride quality, control and long-term reliability has been consistently excellent.

Why choose this Bilstein B3 spring

• Direct-fit replacement on the rear axle for BMW E81 E82 E87 and E92 platforms
• Factory-spec performance with OE-grade materials and geometry
• Restores correct rear ride height, composure and comfort
• High resistance to breakage for daily road use in UK conditions
• Engineered by Bilstein for long service life and dependable handling

Engineering highlights

• Precision coil design including pigtail and minibloc forms where specified by the application
• Manufactured from high-grade chrome vanadium or chrome silicon spring steel
• Hot set after forming to minimise height loss over time
• Surface compressed and protected for corrosion resistance and durability
• Matches series-production characteristics for a true OEM driving feel

Fitment overview

Position: Rear axle

BMW 1 Series

• E81 3-door hatchback 09.2006 to 12.2011
  • 116i, 118i, 120i
• E82 Coupe 10.2006 to 10.2013
  • 120i, 135i, 118d, 120d
• E87 5-door hatchback 02.2003 to 01.2013
  • 116i, 118i, 120i, 130i, 116d, 118d, 120d

BMW 3 Series

• E92 Coupe 01.2005 to 12.2013
  • 316i, 320i, 325i, 330i, 320d, 325d, 330d

Many technicians replace both sides on the same axle at the same time to maintain even ride height and balance.

Compatibility check

We will verify fitment before dispatch. At checkout, add your UK registration or the last 7 characters of your VIN so we can confirm this spring suits your exact model and specification.

Professional fitting

Want it installed by experts We offer fitting and alignment at MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Product identifiers

• Part number: 36-313273
• Manufacturer reference: BILSTEIN-36-313273
• EAN: 4025258864538
• UPC: 651860871721

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Choose the Bilstein B3 36-313273 to refresh your BMW’s rear suspension with confidence, comfort and reliability that lasts.