Bilstein 23-250727 Suspension Strut Assembly - Front Left

Bilstein B6 DampTronic Front Left Strut

The Bilstein B6 Performance (DampTronic) front left suspension strut assembly is a direct OE-style performance upgrade for BMW models with factory electronic suspension. It keeps the factory electronic damping controls and active suspension functions in place while improving handling response and road control.

Built for BMW 230i, 330i, 430i, 440i, 328i, 335i, 428i, 435i, 228i, 328d, 340i, M235i, M240i, M235i, and ActiveHybrid 3 applications, this Bilstein shock absorber is engineered for drivers who want sharper suspension performance without losing OEM electronic integration. Part number 23-250727 is designed for the front left position.

Key Features

• Bilstein B6 Performance (DampTronic) series for factory electronic suspension systems
• Front left suspension strut assembly for BMW applications listed below
• Retains active suspension features and factory damping controls
• Application-specific valve settings for improved handling response
• Monotube damper design for consistent performance
• Yellow painted finish
• Upper mount type: stem; lower mount type: base cup
• Internal design: twintube

Product Details

The Bilstein B6 Performance (DampTronic) line is built for vehicles that use electronic damping control and OE springs. This front left strut assembly is tuned to work with the factory suspension system, helping preserve the original electronic functions while adding firmer, more controlled damping characteristics. For BMW 230i, M240i, 430i Gran Coupe, and other listed chassis, part number 23-250727 provides a focused suspension upgrade that supports better steering feel and body control.

This part cross-references BMW OE numbers such as 37 10 6 850 251 and 37 11 6 864 751 for the same application.

What This Strut Helps Address

• Excessive front-end bounce or float over uneven pavement
• Reduced steering precision during cornering
• Worn or inconsistent damping on electronically controlled suspension
• Loss of ride control from aging OE struts
• Front left suspension noise or instability related to damper wear

Installation Notes

Install on the front left side only and verify electronic suspension compatibility before ordering. This damper is intended to be paired with OE factory springs, and the vehicle’s factory controls remain in use after installation. Boot is not included. Confirm the exact BMW chassis, model year, and suspension package against the fitment list before installation.

• Fits 2017-2021 BMW 230i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2017-2021 BMW M240i, front left, B6 Performance (DampTronic)
• Fits 2017-2020 BMW 430i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2017-2020 BMW 430i Gran Coupe, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2017-2020 BMW 440i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2017-2020 BMW 440i Gran Coupe, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2014-2018 BMW 328d, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2017-2018 BMW 330i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2016-2018 BMW 340i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2014-2016 BMW 228i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2012-2016 BMW 328i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2014-2016 BMW 428i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2015-2016 BMW 428i Gran Coupe, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2014-2016 BMW 435i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2015-2016 BMW 435i Gran Coupe, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2014-2016 BMW M235i, front left, B6 Performance (DampTronic)
• Fits 2012-2015 BMW 335i, front left, with electronic suspension; B6 Performance (DampTronic)
• Fits 2013-2015 BMW ActiveHybrid 3, front left, with electronic suspension; B6 Performance (DampTronic)

Quality Assurance

Each Bilstein damper is tested to meet or exceed OE standards and is built for application-specific performance on BMW electronic suspension platforms. Part number 23-250727 is part of the Bilstein B6 Performance (DampTronic) range, engineered to maintain factory electronic damping functionality while improving suspension control.