Bilstein B3 Rear Coil Spring 38-129070 – OE Spec Rear/Back Axle Suspension Spring for BMW 3 Series E36 (1990-1999) – Direct Fit Standard Height Replacement – Saloon/Sedan, Touring/Estate, Coupe – 316i-328i, 325td/tds, 318tds

Bilstein B3 Back Axle Coil Spring - Part No. 38-129070 - BMW 3 Series E36 1990 to 1999

Restore the confident feel of your E36 with Bilstein B3. This OEM-grade rear helical spring is a direct-fit replacement that brings your BMW back to its proper stance, keeps handling sharp on British roads and delivers the durable reliability enthusiasts expect. If your original back spring is tired, sagging or cracked, this is the smart, factory-spec solution that simply fits and works.

Why this spring is a brilliant choice

• Direct-fit, stock-height replacement for the back axle on E36 3 Series models.
• Factory-rate springing for balanced road manners and everyday comfort.
• Quiet operation with correct end shapes for rattle-free seating.
• Built for UK use with dependable performance mile after mile.
• Trusted by our team and our customers for long-term durability and ride quality.

Engineered for longevity

• Premium chrome vanadium or chrome silicon spring steel for outstanding strength.
• Hot set after forming to resist sagging and maintain correct ride height.
• Surface compressed and coated for corrosion protection and extended service life.
• Precise pigtail and minibloc geometries for perfect seating in the spring pads.
• Matches original BMW design intent for consistent, predictable handling.

Fitting position

Rear axle

Confirmed compatibility - BMW 3 Series E36

• Saloon E36 09.1990 to 11.1998
  • 316i, 318i, 318is, 320i, 323i, 325i, 328i, 325td, 325tds
• Touring E36 08.1994 to 12.1999
  • 316i, 318i, 320i, 323i, 328i, 318tds, 325tds
• Coupe E36 10.1991 to 05.1999
  • 316i, 318is, 320i, 323i, 325i, 325is

Part numbers and identifiers

• Part number: 38-129070
• Also known as: Bilstein 38-129070, Bilstein B3 38-129070
• EAN: 4025258565756
• UPC: 651860565750

Fitment check before dispatch

Provide your UK registration or the last 7 characters of your VIN at checkout and we will confirm suitability before shipping. This helps ensure you get the correct rear spring for your specific E36.

Professional installation

Want it fitted right first time? Book expert installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored fitting quote and availability.

What owners say

We run Bilstein B3 on our own road cars and customers consistently report a tight, composed ride, proper stock ride height and excellent stability after replacing tired originals. It is a fuss-free, quality upgrade when refreshing an E36 suspension.

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