STX Threaded Coilovers ST Suspensions BMW 5 Series

The STX ST Suspensions coilovers (part no. 13220036) are intended for the BMW 5 Series (E39), (5/D) Touring with air suspension on the rear axle. Derived from motorsport, the STX range offers precise height adjustment with a fixed damping setting preset at the factory.

• Years: 01/97-
• Maximum permitted front axle load: 1021 to 1095 kg
• Maximum permitted rear axle load: -1410 kg
• Front lowering: 35 to 65 mm
• Rear lowering: 30 to 60 mm
• Front and rear height adjustment (on vehicles that allow it) via a dial located on the threaded body of the shock absorber
• Galvanized finish and anti-corrosion coating for extended service life
• Galvanized steel strut assemblies

Installation and contents

The coilovers are supplied in sufficient quantity to equip the vehicle and fit in place of the original suspension, without modification. If the vehicle only has springs at the rear as standard, the same applies to this kit. Only STXTA models are sold with strut mounts: for the others, original strut mounts must be used. The kits are supplied bare (shock absorber cartridges and springs where applicable), unless an accessory essential for lowering is required. ST Suspensions is a brand of KW, which manufactures these products.

To check before ordering

For models equipped with the EDC (electronic damping control) system, the following parts must be replaced:

• Front: bearing REF. BMW 31 331 091 709 + strut mount REF. BMW 31 331 116 983 + dust boot REF. BMW 31 331 110 196
• Rear: upper bearing REF. BMW 33 521 091 710 + bracket REF BMW 33 521 090 282 + seat REF BMW 33 521 092 986 + dust boot REF BMW 31 331 137 932 + rubber washer REF BMW 33 531 091 031