BMW 4-Piece Control Arm Kit with Lemforder Components - 31126855741KT2

Overview

Genuine BMW 4-piece front suspension control arm kit for F2X 2-Series and F3X 3-Series/4-Series RWD models. Includes two tension struts (upper control arms) and two lower control arms with OE Lemforder components, plus all necessary hardware (nuts and bolts). Recommended replacement at 80,000+ miles or when experiencing suspension play, clunking noises, steering disconnection, or alignment issues.

Installation summary

Replacing the front suspension on F2X and F3X rear-wheel-drive models requires advanced DIY skills and about four hours of shop time, making this job best suited for experienced mechanics equipped with spring perch tools and a full assortment of suspension sockets. Because this four-piece kit includes both upper tension struts and lower control arms with all necessary hardware, you must ensure ride height adjustments are properly managed if your vehicle is equipped with coilovers. The most critical step is to tighten all suspension fasteners only after the vehicle's weight is fully resting on its tires to prevent premature bushing failure, followed immediately by a professional four-wheel alignment.

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