Bilstein B4 19-306230 Front Left Shock Absorber/Strut (Nearside NSF, LH) for BMW 5 Series

Bilstein B4 Left Front Damper Unit for BMW 5 Series Estate G31 2017 on, Part Number 19-306230

Bring back the crisp, planted feel your BMW 5 Series G31 deserves with the Bilstein B4 left front damper. This OEM specification replacement is a direct bolt-on for the near side front on the G31 estate and restores factory ride quality, steering precision and confidence on British roads. Part number 19-306230 also referenced as BILSTEIN-19-306230.

Ideal for owners chasing original comfort and control without altering ride height, this replacement strut is engineered to match BMW’s factory characteristics. If your 5 Series estate feels bouncy, unsettled over bumps, nose heavy under braking or shows uneven tyre wear, this left-hand front suspension unit will transform day-to-day drivability and safety.

Why this Bilstein B4 makes sense for your G31

• OEM-level quality with precise fitment for the G31 chassis, no modifications required.
• Gas pressurised twin tube design for consistent damping and dependable road holding.
• Restores stability, composure and confidence through corners and on the motorway.
• Perfect stock replacement for daily use, commuting and long-distance touring.
• Built by Bilstein, renowned for durable and reliable suspension components.

We install these B4 units regularly at MJ Modifications and customer feedback is consistently excellent. Owners report a calmer, more controlled ride with sharper turn in and reduced body movement compared with tired original parts.

Fitment information

Suits BMW 5 Series Touring G31 from 03.2017 onwards, including:

• 520 e Plug in Hybrid, 530 e Plug in Hybrid
• 520 i, 520 i Mild Hybrid, 530 i, 530 i Mild Hybrid
• 518 d, 518 d Mild Hybrid, 520 d, 520 d Mild Hybrid, 525 d
• 530 d, 530 d Mild Hybrid

Location: Near Side Front NSF left hand front on UK vehicles.

Technical details

• Part number: 19-306230, BILSTEIN-19-306230
• Construction: Gas pressurised twin tube
• Design: Spring seat integrated damper
• Mounting style: Upper pin and lower fork
• Position: Front axle left
• EAN: 4025258852832
• UPC: 651860860640

Common signs you need this part

• Knocking or crashing over potholes and speed humps.
• Excessive float or bounce and poor stability at speed.
• Nose dive under braking and longer stopping distances.
• Cupping or uneven tyre wear and vague steering feel.

Best practice

Replace in axle pairs for balanced braking and handling. The matching offside front component is Bilstein 19-306247.

Professional installation

Book fitting with MJ Modifications in Warwickshire for expert installation and setup. Email info@mjmodifications.co.uk for a quote. We recommend a four wheel alignment after fitment.

Compatibility check

We verify suitability before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout and we will confirm the part is correct for your BMW G31.

Search friendly terms

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