Bilstein B4 Left-Hand Front Damper for BMW 3 Series E46 - Part No. 22-139931

Restore factory-fresh control and comfort on your E46 with this Bilstein B4 left-hand front MacPherson strut, part number 22-139931. This OEM-grade, gas-charged twin tube suspension leg delivers crisp steering feel, stable body control and confident braking on British roads. Perfect for road use, commuting and spirited B-road driving, it is a direct-fit replacement that brings your BMW 3 Series chassis back to how it should feel.

At MJ Modifications we run B4 units on our own cars and customer vehicles. Feedback from E46 owners is consistently positive for ride quality, durability and real-world handling. If you are refreshing the front end, pair this nearside unit with the matching offside partner 22-139948 for balanced damping and even tyre wear.

Why this Bilstein B4 is a smart choice

• Direct-fit nearside front damper that matches original equipment specification
• Pressurised twin tube design for consistent performance over rough UK roads
• Improves stability, turn-in and mid-corner composure without increasing ride height
• Excellent everyday comfort with dependable control at motorway speeds
• Engineered by a suspension specialist trusted by enthusiasts and garages alike

Key specifications

Fitting position	Front axle left - nearside
Type	Gas-charged twin tube
Design	MacPherson strut damper
Mounting	Bottom plate, top pin

Vehicle applications - BMW 3 Series E46

Suitable for a wide range of E46 chassis variants across saloon, touring, coupe, convertible and compact models from 1998 to 2007, including:

• 3 Series E46 saloon 12.97 - 05.05: 316i, 318i, 320i, 323i, 325i, 328i, 330i, 318d, 320d, 330d
• 3 Series E46 touring 06.99 - 05.05: 316i, 318i, 320i, 323i, 325i, 328i, 330i, 318d, 320d, 330d
• 3 Series E46 coupe 12.98 - 07.06: 316Ci, 318Ci, 320Ci, 323Ci, 323i, 325i, 325Ci, 328Ci, 330Ci, 320Cd, 330Cd
• 3 Series E46 convertible 04.00 - 12.07: 318Ci, 320Ci, 323Ci, 325Ci, 330Ci, 320Cd, 330Cd
• 3 Series E46 compact 03.01 - 02.05: 316ti, 318ti, 325ti, 318td, 320td

Recommended pairing

Right-hand front partner: Bilstein 22-139948 for BMW E46. Replace in axle pairs for best results and even damping performance.

Fitment confirmation

We will verify compatibility before dispatch. Add your UK registration number or the last 7 of your VIN at checkout to ensure this nearside front B4 unit 22-139931 suits your specific E46.

Professional installation

Fitting available at MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk. We also offer alignment checks and front-end refresh packages for E46 platforms.

Part numbers and identifiers

Part number: 22-139931 | BILSTEIN-22-139931

Manufacturer: Bilstein

EAN: 4025258583101

UPC: 651860583105

What E46 drivers say

Our customers consistently report tighter body control, better ride comfort on poor surfaces, and an overall refresh of steering precision when replacing tired factory dampers with these B4 units. We have installed them on numerous 3 Series builds with fantastic long-term reliability.

Search terms to help you find the right part

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