Parts for your 2018 Toyota C-hr-Gas struts

2018 Toyota C-HR gas struts

Referencing Toyota’s service literature and parts catalogues (Toyota C-HR Repair Manual – Back Door: Back Door Stay, Toyota Electronic Parts Catalogue for NGX10R/ZYX10), the 2018 Toyota C-HR is factory-fitted with gas-charged struts on the back door (tailgate). These are listed as “Back Door Stay (Gas Type)” and are a normal wear item. The bonnet on this model uses a mechanical prop rod, not gas struts, which aligns with Toyota’s design choice on many compact SUVs of this era to save weight and cost while keeping engine-bay access straightforward.

On the C-HR, the gas struts do the heavy lifting for the tailgate, making it easy to open and keeping it steady when loading the boot. They’re pressurised with nitrogen and lightly oil-damped, so they control the lift and the last bit of closing without bouncing or slamming. When they’re healthy, the hatch lifts smoothly and stays put, even in a breeze — handy on the job or at the shops.

As part of routine servicing, it’s smart to give the back door struts a quick once-over. Heat, UV, dust, and plenty of use (very common in Aussie and Kiwi conditions) slowly bleed performance. Typical signs they’re on the way out include:

• Needing a hand to lift, or the hatch sinking on its own
• Stuttering, squeaking, or uneven motion
• Oil mist or wetness on the rod body
• Slow or weak lift in cold weather that doesn’t improve when warm

Replacement is straightforward and usually done in pairs to keep lift and balance even. Always support the tailgate safely (prop or helper), swap one side at a time, and match the correct spec for the vehicle’s build. Avoid gripping or lubricating the chrome rods — grease attracts grit and damages the seals. Keep the rod surfaces clean and free of nicks, and check the ball studs for play. Many C-HR struts last 5–10 years, but high heat or frequent use can shorten that, so a quick functional check every service is well worth it.

For workshops and owners alike, fitting quality, correctly rated struts restores the “one-finger lift” feel and keeps the tailgate secure — no head knocks, no sagging, just tidy, reliable operation the C-HR is known for.

Popular questions

How long do 2018 C-HR tailgate gas struts usually last?
In local conditions, many see 5–10 years, but sun exposure, dust, and how often the hatch is used make a big difference. If the tailgate won’t stay up or needs a shove to start moving, it’s time to test and likely replace.

Can bonnet gas struts be added to a 2018 C-HR?
The factory bonnet uses a prop rod. Retrofit kits exist from aftermarket suppliers, but ensure they’re properly rated and use secure mounting points. Any modification should allow full bonnet travel without fouling and be reversible for warranty or compliance needs.

Should gas struts be replaced in pairs?
Yes. Swapping both keeps lift and damping balanced, helps the latch align cleanly, and prevents the good strut from being overworked. It’s a small extra cost that pays back in smooth operation and longevity.