Parts for your 2018 Subaru Impreza-Cv boots

2018 Subaru Impreza CV boots — what they do and when to replace them

Technical confirmation that CV boots are used on the 2018 Subaru Impreza: The Subaru Global Service Manual (GSM) for the 2017–2019 Impreza (GK/GT) details front and rear drive shafts with constant‑velocity (CV) joints protected by inner and outer rubber boots, including full inspection and replacement procedures under the Drive Shaft System sections. Subaru’s OEM parts catalog for the 2018 Impreza also lists genuine Boot Kit – Front Axle and Boot Kit – Rear Axle kits (boots, clamps and grease). Independent workshop databases that mirror Subaru procedures show the same servicing steps. So, CV boots are absolutely relevant and fitted to the 2018 Subaru Impreza.

On the 2018 Subaru Impreza, CV boots do a simple but crucial job: they keep special moly grease inside the CV joints and keep water, grit and road grime out. With Subaru’s Symmetrical AWD, there are CV joints and boots at the front and the rear, so keeping those flexible boots in good nick helps protect all four half‑shafts and keeps the driveline quiet and smooth.

As part of routine servicing, it’s smart to have the CV boots checked for cracks, splits, loose clamps or grease flung around the inner guard or wheel. Subaru’s workshop guidance calls for periodic inspection, and in Aussie and Kiwi conditions—think heat, UV and the odd gravel or beach run—boots can perish earlier. If a boot is torn, replacing it promptly and repacking the joint with the correct grease often saves the CV joint itself. Leave it too long and the joint can run dry or ingest grit, leading to that tell‑tale clicking on turns and a pricier fix.

When replacing a boot, quality matters: use the right boot kit with new clamps and the specified grease, and have the axle nut tightened to factory torque (and staked where required). If contamination or noise is present, a complete driveshaft or CV joint replacement may be the better call. After any driveline work, a quick road test is essential, if suspension arms were disturbed, an alignment check is wise.

Driving with a split CV boot isn’t recommended—even a few kilometres of wet or dusty roads can push muck into the joint. For WOF/roadworthy checks in NZ and Australia, a leaking or damaged CV boot can lead to a fail. Regular visual checks at each service, and after off‑road or beach trips, will keep the Impreza’s AWD system happy for the long haul.

• Watch for: grease spray near wheels, cracks in rubber, clicking on turns, vibration under load.
• Best practice: inspect every service, clean underbody after beach/gravel use, fix splits immediately.

FAQs

Do all 2018 Subaru Impreza models in Australia and New Zealand have CV boots front and rear?
Yes. Local 2018 Impreza models are AWD, so they use CV joints and boots on both front and rear half‑shafts. That means double the reason to keep an eye on boot condition at service time.

How often should CV boots be checked on a 2018 Impreza?
Have them inspected at every routine service and any time you notice grease around the inner guards or wheels. If you’ve done gravel, snow or beach driving, a quick post‑trip look is cheap insurance.

Can a torn CV boot be repaired, or does the whole driveshaft need replacing?
If caught early, a boot‑only replacement with fresh grease and clamps usually does the trick. If the joint has run dry, is noisy, or has grit inside, a new joint or complete shaft is the safer bet.