KW Street Comfort Coilovers – BMW 3 Series Sedan / Coupe (E90/E92)

OVERVIEW

KW Street Comfort is an individual sport suspension built around maximum comfort. The height-adjustable system allows a lowering of roughly 10–40 mm depending on the vehicle, giving the flexibility to improve the stance and to work with aftermarket wheels.

The moderate lowering also has a positive effect on driving dynamics and road contact. Because the drop is discreet, more spring travel is retained, and the comfort-oriented spring is paired with a harmonised damper so ride quality stays the priority.

This application is for the rear-wheel-drive BMW 3 Series E90 sedan and E92 coupe.

SPECS

• Comfort-biased spring and damper pairing with KW pre-set damping
• Continuously height-adjustable, approximately 10–40 mm depending on the vehicle
• Front lowering: 0.6–1.4 in
• Rear lowering: 0.4–1.2 in
• More usable spring travel retained than a comparable sport coilover
• Rear-wheel-drive applications only

PARTS INCLUDED

• Complete Street Comfort kit as supplied by KW; see the installation instructions for the full bill of materials.
• KW installation instructions No. 180 20 032

TECH RESOURCES

Additional Parts Required

• Four-wheel alignment after installation is mandatory — KW requires the suspension geometry to be reset to the vehicle manufacturer's specification once the final ride height is set.
• Professional installation required — KW states that suspension components must only be fitted by a trained workshop. Impact wrenches must not be used on piston-rod fasteners.
• Ride-height sensors must be disconnected and removed before strut removal on cars fitted with adaptive/xenon headlight levelling.
• Driver-assistance systems (radar and camera based) must be re-verified and recalibrated after the car is lowered.
• Check wheel and tyre clearance to the strut body after installation; spacers may be required where clearance is marginal.
• Not for cars with Electronic Damper Control (EDC). EDC-equipped cars require a different KW application.

Installation

• KW installation instructions No. 180 20 032 (PDF) — official KW manual for this kit, covering the BMW 3 Series sedan (type 390L, 3L, 3K) and coupe (type 392C, 3C).

Notes

• Fitment rows are carried over from the previous listing; years shown are BMW production years for the listed engine variants. KW's own instruction sheet covers the 3 Series sedan and coupe only — M3 models are not an application for this kit.

PART NUMBER

• 18020032 — KW Street Comfort kit, BMW 3 Series E90 sedan / E92 coupe, RWD

VEHICLE APPLICATIONS