Parts for your 2017 Nissan Serena-Rack boots

2017 Nissan Serena (C27) rack boots: what they do and when to replace them

Based on technical sources, rack boots are fitted to the 2017 Nissan Serena (C27) and are absolutely relevant. The Nissan Electronic Service Manual (ESM) for the C27’s Steering System (ST section) shows a rack-and-pinion steering gear with bellows-style boots on each end of the rack. Nissan’s FAST electronic parts catalogue for the C27 also lists a “Boot – Steering Gear” (two required), confirming the vehicle uses rack boots.

On a 2017 Serena, the rack boots (also called steering rack bellows) are the flexible rubber sleeves that seal each end of the rack-and-pinion housing. Their job is to keep water, road grit, and dust out of the inner tie-rod ball joints and the rack itself, while holding grease where it’s needed. Even though most C27 models run electric power steering, they still use a conventional rack-and-pinion with boots—so the boots are just as important for longevity.

As part of routine servicing, it’s smart to check the boots every time the vehicle is up on a hoist. Look for cracks, splits, loose clamps, or grease flung onto the subframe. A torn boot can let water in, leading to corrosion and wear in the inner tie rod and rack teeth, heavier steering, and eventually a pricey steering gear replacement. In NZ, a torn rack boot is a common WOF fail, so catching it early saves hassle.

If a boot needs replacing, it’s generally straightforward but best done properly:

• Replace boots in pairs if they’re the same age.
• Use quality EPDM boots and proper ear clamps—skip cable ties.
• Clean out any contamination, apply the correct grease to the inner tie-rod joint, and don’t overpack.
• If the outer tie rod is removed to slip the boot on, book a wheel alignment afterwards.

There’s no fixed replacement interval—go by condition. City driving, gravel roads, and coastal exposure can all age the rubber faster. A quick peek at every service, plus immediate replacement if there’s any tear or oil soak, will keep the Serena’s steering sweet and help avoid bigger bills down the track.

FAQs

Does the 2017 Nissan Serena use electric power steering, and does that change anything for rack boots?
Most 2017 Serena (C27) models use electric power steering, typically column-assist. That doesn’t remove the rack-and-pinion, it still has inner tie rods and rack boots. The boots are just as critical to protect the moving parts from contamination.

How often should rack boots be replaced on a 2017 Serena?
There’s no set kilometre interval. Inspect them at every service. Replace immediately if you find cracking, splits, loose clamps, or grease/dirt inside the boot. In NZ, a damaged boot can cause a WOF fail, so don’t leave it.

Can you drive with a torn rack boot?
It’ll still drive, but it’s not a good idea. A torn boot lets water and grit into the inner tie-rod joint and rack, accelerating wear and potentially leading to costly steering gear damage. Get it sorted promptly and consider an alignment if the tie rod is disturbed.