Parts for your 2017 Bmw X3-Rack boots

2017 BMW X3 rack boots: what they do and when to replace them

Yes, rack boots are relevant and fitted to the 2017 BMW X3 (F25 LCI). BMW’s own technical documentation confirms it: the BMW ETK (Electronic Parts Catalogue), group 32 Steering, shows left and right steering gear bellows/boots on the F25 rack, and BMW TIS repair instructions for the F25 include “Removing and installing/replacing bellows for steering gear,” highlighting that these parts are serviceable items. Workshop information from the rack supplier used on this model reinforces that the bellows protect the rack bar and inner tie rods from contamination and moisture.

On a 2017 X3, the rack boots (also called bellows or gaiters) are those accordion-style rubber sleeves on either end of the steering rack. Their job’s simple but crucial: keep sand, water, and road grime out, and keep the inner tie rod joint’s grease in. Because the F25 uses an electric power steering rack, there’s no hydraulic fluid to leak, but a torn boot can still let in enough muck to chew out the inner joint and corrode the rack bar or housing—an expensive headache compared with a routine boot swap.

For servicing, it’s smart to have the boots inspected at every service or WOF/COF. Look for small splits, perished rubber, loose or missing clamps, or grease flung onto the subframe or undertray. If the car sees a lot of gravel roads, beach trips, or wet commutes, check them more often. Boots aren’t replaced on a schedule, they’re replaced on condition.

When replacement’s needed, a technician will separate the outer tie rod end from the knuckle, remove the old clamps, slide off the damaged bellows, and fit a new quality boot with new one-time clamps. They’ll set the new boot squarely on the rack spigot and tie rod groove, then recommend a wheel alignment because even careful work can nudge toe settings. Avoid bargain clamps that don’t seal properly, a poor seal is as bad as a torn boot.

• Common warning signs: visible cracks or splits, damp/greasy build-up around the boot, light clunks over bumps (from inner tie rod wear), or steering feel getting a bit vague.
• Top tips: check after any off-road detour, replace both clamps with the boot, and don’t drive long with a torn bellows—water ingress can fast-track rack damage.

Popular questions about 2017 BMW X3 rack boots

Do all 2017 BMW X3s have rack boots, even with electric power steering?

They do. The electric rack still uses bellows on both sides to protect the inner tie rods and the rack bar. While there’s no power steering fluid to worry about, the boots are just as important for keeping grit and water out.

How often should the rack boots be replaced?

There’s no set interval—replace on condition. Have them checked at each service. In Aussie and Kiwi conditions with gravel, corrugations, and plenty of rain, catching small splits early saves the rack and keeps alignment tidy.

Is it safe to drive with a torn rack boot?

It’ll usually still steer, but it’s not a great idea. A torn boot can let water and debris in, accelerating wear on the inner tie rod and rack. Best bet is to book a repair soon and follow it with a wheel alignment.