BMW Front Strut Mount - Lemforder OE 31305A3C0D9

Overview

OE-quality front strut mount for BMW F30 3-Series (2012-2016) with Adaptive M Suspension. Lemforder part 3940501 secures the strut to the chassis and serves as the steering pivot point. Designed for vehicles with MacPherson suspension systems, this mount prevents clunking noises, excessive vibration, and poor steering response caused by worn rubber and bearing degradation. Made in Poland to OE specifications.

Installation summary

This medium difficulty suspension installation requires moderate mechanical experience and is suitable for competent DIY enthusiasts with proper garage tools. The job requires a reliable floor jack, a quality spring compressor tool to safely unload the coil spring, and standard metric socket sets to unbolt the strut assembly from the chassis and steering knuckle. The most important thing to watch out for is marking the orientation of the top mount and spring perch before disassembly to ensure correct alignment upon reassembly, followed by a professional four-wheel alignment immediately after the job is completed.

AI-generated overview — always verify against the official install instructions.