{"product_id":"st-xa-coilovers-bmw-m5-e39-99-03","title":"ST XA Coilovers BMW M5 E39 99-03","description":"\u003ch2\u003eST XA Coilovers for BMW M5 E39 (1999-2003) – 20-65 mm Lower, Height Adjustable, 16-Click Rebound Damping\u003c\/h2\u003e\n\u003cp\u003eThis ST XA kit replaces the standard springs and dampers on the BMW M5 E39 (1999-2003) with a height-adjustable coilover set. It lowers the car by approx. 35-65 mm at the front and 20-50 mm at the rear, which sharpens the steering, cuts body roll and closes up the wheel arch gap. The ride height is set on threaded struts, so you can go for a subtle drop or use the full approved range, and change it again later.\u003c\/p\u003e\n\u003cp\u003eThe ST XA adds adjustable rebound damping to the height-adjustable ST platform. ST set the dampers up for this car at the factory, and the 16-click rebound adjuster then lets you make the ride softer for comfort or firmer for tighter body control. Shaped (progressive) springs keep the car comfortable over small bumps while adding support as the suspension compresses. ST is part of the KW automotive group, and the kit is developed and made in Germany using KW engineering.\u003c\/p\u003e\n\u003cp\u003eThis kit is for the BMW M5 E39 (Saloon) with the M5, up to a 1105 kg front axle load. Check the Fitment section below before ordering.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront lowering:\u003c\/strong\u003e approx. 35-65 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear lowering:\u003c\/strong\u003e approx. 20-50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax front axle load:\u003c\/strong\u003e up to 1105 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax rear axle load:\u003c\/strong\u003e up to 1225 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight adjustment:\u003c\/strong\u003e Stepless, on threaded strut housings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum ride height (wheel hub centre to arch edge):\u003c\/strong\u003e front 320 mm, rear 360 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping:\u003c\/strong\u003e Adjustable rebound, 16 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSprings:\u003c\/strong\u003e Shaped progressive springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrut housings:\u003c\/strong\u003e Galvanised steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproval:\u003c\/strong\u003e Parts certificate (German §19.3)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLowering figures are ST's, measured against the standard car. The actual drop varies with engine, equipment and tolerances on each car, and the springs settle slightly after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStepless ride height adjustment on a coarse, dirt-resistant trapezoidal thread\u003c\/li\u003e\n\u003cli\u003e16-click adjustable rebound damping, delivered with a base setting for this vehicle\u003c\/li\u003e\n\u003cli\u003eShaped progressive springs for a comfortable ride with firmer support in corners\u003c\/li\u003e\n\u003cli\u003eGalvanised, multi-sealed steel strut housings for long-term corrosion protection\u003c\/li\u003e\n\u003cli\u003eComposite spring perches with stainless steel inserts that stay easy to adjust for years\u003c\/li\u003e\n\u003cli\u003eDust covers and bump stops protect the damper seals and act as an extra spring under heavy load\u003c\/li\u003e\n\u003cli\u003eDeveloped and built in Germany, based on KW engineering\u003c\/li\u003e\n\u003cli\u003eSupplied with a parts certificate and fitting instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the Kit?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 x height-adjustable front coilover struts with springs\u003c\/li\u003e\n\u003cli\u003e2 x height-adjustable rear coilover struts with springs\u003c\/li\u003e\n\u003cli\u003eComposite spring perches with stainless steel inserts\u003c\/li\u003e\n\u003cli\u003eDust covers and bump stops\u003c\/li\u003e\n\u003cli\u003eParts certificate and fitting instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e the photos are ST's own images of this kit. Small details such as brackets can differ from the photos.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 5-Series E39 (Sep 1995 to Dec 2003)\u003c\/li\u003e\n\u003cli\u003eEngines: M5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any vehicle not listed above. Contact us with your registration if you are unsure.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eFitting means removing the original struts, springs and dampers and fitting the ST units in their place. We recommend a qualified workshop experienced with coilovers. A spring compressor is needed to strip down the original front struts. The original top mounts, bearings and fixings are reused, so check them for wear and replace any that are worn. Set the ride height within the approved range, tighten the suspension bolts with the car's weight on its wheels, and torque everything to the manufacturer's figures. A four-wheel alignment is required once the car is at its final ride height. Re-check the height and alignment after the first few hundred miles, once the springs have settled.\u003c\/p\u003e\n\u003cp\u003eDownload ST's documents for this kit: \u003ca href=\"https:\/\/docs.kwsuspension.de\/ea-STGFw-h68620018.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFitting instructions (PDF)\u003c\/a\u003e, \u003ca href=\"https:\/\/docs.kwsuspension.de\/ga-STGFw-20018_2721-06-N1.pdf\" target=\"_blank\" rel=\"noopener\"\u003eParts certificate (PDF)\u003c\/a\u003e, \u003ca href=\"https:\/\/docs.kwsuspension.de\/es-STESAV2-68577714.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDamper adjustment guide (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe dampers arrive on ST's base setting for this car. Make small changes to the rebound adjuster and test before going further.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore you start:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDisconnect any ride height sensors (headlight levelling or self-levelling) before removing the old struts.\u003c\/li\u003e\n\u003cli\u003eClean the threads before adjusting, and start with the height adjusters in the middle of their range.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAfter fitting:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDo not go below ST's minimum height, measured from the wheel hub centre to the wheel arch edge: front 320 mm, rear 360 mm.\u003c\/li\u003e\n\u003cli\u003eExpect the car to settle a further 5-10 mm once it has been driven, then re-check the height.\u003c\/li\u003e\n\u003cli\u003eCheck there is at least 5 mm clearance between the tyres and the suspension through the full steering and suspension travel.\u003c\/li\u003e\n\u003cli\u003eHave the headlight aim reset, along with any other height-dependent systems.\u003c\/li\u003e\n\u003cli\u003eESP\/ABS warning lights can appear after fitting. Some clear after a short drive, others need full steering lock both ways or a reset with a diagnostic tool.\u003c\/li\u003e\n\u003cli\u003eOn cars with radar or camera driver assistance systems, have the calibration checked after lowering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eIf you only need height adjustment, the \u003ca href=\"\/products\/st-x-coilovers-bmw-m5-e39-99-03\"\u003eST X Coilovers BMW M5 E39 99-03\u003c\/a\u003e has fixed damping and costs less.\u003c\/p\u003e\n\u003ch3\u003eWill this fit my BMW M5 E39?\u003c\/h3\u003e\n\u003cp\u003eIt fits the BMW M5 E39 (1999-2003) with the M5. Check the Fitment section for the body styles and exclusions, or send us your registration and we will check.\u003c\/p\u003e\n\u003ch3\u003eHow low will my BMW M5 E39 sit?\u003c\/h3\u003e\n\u003cp\u003eST quotes a drop of approx. 35-65 mm at the front and 20-50 mm at the rear compared with standard. The exact drop varies from car to car with engine, equipment and tolerances. ST also sets a minimum: the distance from the wheel hub centre to the wheel arch edge must stay above approx. 320 mm at the front and 360 mm at the rear.\u003c\/p\u003e\n\u003ch3\u003eCan I adjust the damping?\u003c\/h3\u003e\n\u003cp\u003eYes. The rebound adjuster has 16 clicks and the kit arrives on ST's base setting for this car. Turn towards firm for tighter body control or towards soft for a more comfortable ride.\u003c\/p\u003e\n\u003ch3\u003eWill the ST XA make my BMW M5 E39 ride harshly?\u003c\/h3\u003e\n\u003cp\u003eIt doesn't have to. The progressive springs keep small bumps under control, and the 16-click rebound adjuster lets you soften the ride for daily use or firm it up for a spirited drive.\u003c\/p\u003e\n\u003ch3\u003eDo I need an alignment after fitting?\u003c\/h3\u003e\n\u003cp\u003eYes. Changing the ride height changes camber and toe, so a full four-wheel alignment is needed once the car is at its final height, and again after any later change.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal in the UK?\u003c\/h3\u003e\n\u003cp\u003eYes. It is designed for road use and comes with a German parts certificate. Keep the ride height within ST's approved range and tell your insurer about the modification.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between ST and KW coilovers?\u003c\/h3\u003e\n\u003cp\u003eST is part of the KW group and its coilovers are made in Germany using KW engineering. ST uses galvanised steel strut housings and offers fewer adjustment options than KW's stainless steel Variant range, which keeps the price lower.\u003c\/p\u003e\n\u003ch3\u003eIs it covered by a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes, ST covers it against defects in materials and workmanship. If a part ever needs replacing, contact us with your vehicle details and order number.\u003c\/p\u003e","brand":"ST Suspensions","offers":[{"title":"Saloon, Front Axle Up To 1105kg","offer_id":58920166949247,"sku":"ST-18220018","price":1121.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6251\/6693\/files\/ST-18220018_001-1000.jpg?v=1792770836","url":"https:\/\/coilovers.co.uk\/products\/st-xa-coilovers-bmw-m5-e39-99-03","provider":"Coilovers.co.uk","version":"1.0","type":"link"}