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Description

BMW E39 5 Series Sedan (95-04) BC Racing DS coilover kit 5/4.5 kg/mm

The BC Racing DS coilover kit E39 (part number I-06-DS-DA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW 5 Series E39 Sedan with rear-wheel drive, model years 1995 to 2004. The spring rate is 5 kg/mm front and 4.5 kg/mm rear.

The DS series is the track-focused coilover kit from BC Racing, and even on a large sedan like the E39 you notice that difference. The digressive piston damps more firmly at low piston speeds (0 to 50 mm/s), so the body stays better under control when turning in and braking.

BC Racing UK lists this kit for the E39 Sedan. You recognise the DS by its satin chrome damper body; you set the ride height independently of the spring preload and the damping in 30 clicks for compression and rebound together.

Key benefits

• Digressive piston: more control over body roll and dive.
• Track-focused: for an E39 that regularly goes on track.
• Ride height independent of spring preload: adjustable via the damper body.
• 30 clicks: compression and rebound adjustable simultaneously.
• Spring rate 5/4.5 kg/mm: the same springs as the BR for the E39 Sedan.
• Pillowball top mounts or camber plates at the front: rubber or the original mounting at the rear.
• Satin chrome damper body: characteristic of the DS series.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW 5 Series E39 Sedan with rear-wheel drive, model years 1995 to 2004 (not the Touring; BC Racing supplies a separate kit for that)

• Track days with an E39 Sedan
• Sporty road use with a firm setup
• A 5 Series that needs to stay flatter through fast corners

Technical specifications

• Manufacturer: BC Racing
• Part number: I-06-DS-DA
• Series: DS, track-focused, with satin chrome damper body
• Spring rate front/rear: 5/4.5 kg/mm
• Damper design: monotube with digressive piston, firmer damping at low piston speed (0 to 50 mm/s)
• Damping: 30 clicks, compression and rebound simultaneously
• Ride height: adjustable via the damper body, independent of the spring preload
• Top mounts: pillowball top mounts or camber plates at the front, rubber or original mounting at the rear
• Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects; noise from track use is not covered by the warranty

Fitting and delivery

This coilover kit is vehicle-specific and takes the place of the original dampers and springs. We recommend having it fitted by an experienced mechanic. On some cars the pillowball top mount at the front requires a small modification to the upper mounting; if in doubt, contact us. After adjusting the height, book a wheel alignment. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing temporarily has the kit out of stock, you can still order and we will let you know when it will be delivered.

The BC Racing DS for the BMW E39 Sedan has a digressive piston, a satin chrome damper body and a spring rate of 5/4.5 kg/mm.

Why choose this DS coilover kit E39?

If you want to take your E39 on track regularly, the DS gives more control over body movements than a road-oriented kit. You tune the damping in 30 clicks and set the car to the height you want, and for the drive to the circuit it simply remains usable.

BC Racing coilover kits for the BMW E39 Sedan

Overview of the BC Racing series for the BMW E39 Sedan supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the BMW E39 Touring, BC Racing has separate kits. Their part numbers start with I-42.

Frequently asked questions

What is the difference between the BC Racing DS and BR for the E39 Sedan?

The DS coilover kit E39 has a digressive piston and is track-focused; the BR has a linear piston and is intended for the road with the occasional track day. Both have 5/4.5 kg/mm and 30 clicks.

What is the difference between the BC Racing DS and RM for the E39?

The DS is a track-focused monotube that can also be used sportily on the road, the RM is made for track days, hill climbs and tarmac rally and has fully synthetic oil. The RM needs periodic greasing and BC Racing recommends it less for road use.

Does the BC Racing DS for the E39 Sedan also fit an E39 Touring?

No. This kit is listed by BC Racing UK for the E39 Sedan. For the Touring without self-levelling suspension (SLS) there is a dedicated DS kit with part number I-42-DS-DA.

Is noise covered by the warranty of the BC Racing DS for the E39?

No, noise from track use is not covered by the warranty. BC Racing does give a 1 year warranty on manufacturing defects.

What is the delivery time of the BC Racing DS coilover kit for the E39 Sedan?

1 to 2 weeks, as long as the manufacturer has stock. If it is temporarily sold out, you can still order and we will tell you the expected delivery date.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.