KW Variant 1 Coilovers – BMW 3 Series Convertible / Wagon (E91/E93)

OVERVIEW

KW Variant 1 is the sporty but balanced coilover kit, supplied with KW's factory pre-set damping. It is the system for the customer who wants to choose the lowering of their car individually while relying on the extensive driving development work KW's engineers have already done.

The dampers are calibrated by KW for the specific vehicle to strike the balance between sporty driving, comfort and safety, so no damper tuning is required by the owner — only the ride height is set at installation.

This application is for the rear-wheel-drive BMW 3 Series E91 Touring and E93 Convertible.

SPECS

• Damping pre-set by KW; no owner adjustment required
• Continuously height-adjustable via trapezoidal thread
• Front lowering: 1.2–2.3 in
• Rear lowering: 0.8–2.0 in
• Stainless steel strut housings for corrosion resistance
• TÜV parts certificate (Teilegutachten) supplied with the kit
• Rear-wheel-drive applications only

PARTS INCLUDED

• Complete coilover kit as supplied by KW; see the installation instructions for the full bill of materials.
• TÜV parts certificate (Teilegutachten) documentation
• KW installation instructions

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 supplies printed installation instructions in the box. KW does not currently publish a public installation PDF for order number 10220033 — contact Speed Logic if you need a copy before the kit arrives.

Notes

• Fitment rows are carried over from the previous listing; years shown are BMW production years for the listed engine variants. Confirm your exact build with Speed Logic before ordering.

PART NUMBER

• 10220033 — KW Coilover Kit V1, BMW 3 Series E91 Touring / E93 Convertible, RWD

VEHICLE APPLICATIONS