Bilstein B3 36-251254 Rear Coil/Suspension Spring for BMW 1 Series F20 & 3 Series F30 (F80 platform) – OEM-Quality OE-Spec Back Axle Helical Spring, Standard Ride Height, Direct-Fit Replacement for 120d xDrive, 125d, 316i, 320i

Bilstein B3 36-251254 Rear Suspension Coil Spring for BMW F20 and F30 platform

Bring back the stock ride height, planted handling and quiet refinement of your BMW with the Bilstein B3 rear suspension coil, part number 36-251254. This genuine-quality back axle helical spring is engineered for a precise, direct-fit replacement on selected BMW 1 Series F20 and 3 Series F30 F80 platform cars including 120d xDrive, 125d, 316i and 320i. Ideal if your vehicle has a broken coil, corrosion, or a sagging tail, this OE-equivalent spring restores factory geometry and confidence on the road.

We run these Bilstein B3 springs regularly at MJ Modifications and customer feedback is consistently positive. Expect a factory-fresh feel, consistent ride height and a durable finish that stands up to British roads and weather.

Key reasons to choose Bilstein B3 36-251254

• Exact-fit back axle coil for the BMW models listed below with stock specification ride height
• German-engineered spring rate and shape for balanced comfort and control
• High tensile spring steel for outstanding strength and break resistance
• Hot set during manufacture to minimise settling over time
• Shot-peened and coated for long service life and corrosion protection
• Quiet operation with proper end profiles for correct seating

Fitment information

Location: Rear axle, left or right

Suits the following BMW applications:

• BMW 1 Series F20 120d xDrive, 125d
• BMW 3 Series F30 F80 platform 316i, 320i

Always confirm compatibility with your exact drivetrain and trim before ordering.

When you should replace a rear spring

• Visible crack, snapped coil or missing fragment
• Rear end sitting low or a noticeably uneven stance
• Clunking, creaking or twanging noises from the rear suspension
• MOT advisory or failure related to a suspension spring

For balanced handling and even ride height, replace rear springs as a pair.

Professional fitting and compatibility checks

We recommend installation by specialists. MJ Modifications in Warwickshire offers expert fitting and alignment. Request a quote at info@mjmodifications.co.uk.

Need us to verify fitment before dispatch? Provide your UK registration or the last 7 digits of your VIN and we will confirm.

Part numbers and identifiers

• Bilstein Part Number: 36-251254
• EAN: 4025258763428
• UPC: 651860766720

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