Bilstein B12 Pro Kit Suspension Lowering Kit for BMW 3 Series E46 330Cd/330d (Diesel) - B8 Dampers + Eibach Pro-Kit Springs - 46-331687

Sport Suspension Package for BMW E46 330Cd and 330d Diesel Models - Bilstein Part 46-331687

Give your BMW 3 Series E46 diesel the stance, grip and confidence it deserves with this matched shocks and springs set from Bilstein and Eibach. Calibrated for the 330d and 330Cd, this street performance kit delivers crisper steering response, stronger body control and a purposeful ride height reduction for a road-focused upgrade that feels OEM plus rather than harsh.

We have installed and used this setup on customer cars and our own builds. Feedback has been consistently positive for ride quality, cornering stability and real-world composure on British roads. If you want a reliable non-coilover handling pack that tightens up the chassis without ruining comfort, this is the one to choose.

Key benefits

• Matched dampers and progressive-rate springs for predictable, confidence-inspiring handling
• Approximate lowering of 10 mm to 30 mm depending on application for a tidy, level stance
• Improved turn-in, reduced squat and dive, enhanced high-speed stability
• Monotube gas-pressure shock technology for consistent performance under hard use
• Upside-down strut design on applicable fronts for added rigidity and steering precision
• TUV approved engineering with German build quality
• Ideal fixed-rate alternative to coilovers for fast road driving

What is included

• 4x Bilstein performance shock absorbers from the B8 family
• 4x Eibach progressive-rate lowering springs
• A complete matched kit optimised for E46 diesel variants

Compatibility

BMW 3 Series E46 diesel applications, including:

• BMW 3 Convertible E46 330 Cd - 04.00 to 12.07
• BMW 3 Touring E46 330 d - 06.99 to 05.05

Technical details

• Shock type: Monotube, gas pressure
• Lowering range: approximately 10 mm to 30 mm depending on vehicle specification
• Spring design: Eibach progressive coils for comfort on the commute and control when pressing on

Fitment check

Before dispatch we verify compatibility. Add your UK registration number or the last 7 digits of your VIN at checkout so we can confirm correct fit for your E46 diesel.

Professional fitting and alignment

Want it installed right first time with proper geometry setup. Book fitting with MJ modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Identifiers

• Manufacturer part number: 46-331687
• Also listed as: BILSTEIN-46-331687
• EAN: 4025258893613
• UPC: 651860905136

Why this kit

This E46 3 Series diesel suspension pack is engineered to work as a system. The uprated shock absorbers control the progressive springs perfectly, so you get sharper chassis response with daily comfort retained. Ideal for enthusiasts who value durability and precision without the complexity of adjustable coilovers.

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