Parts for your 2014 Toyota Mark x-Gas struts

2014 Toyota Mark X gas struts — what they do and when to replace them

Based on Toyota’s own technical documentation, gas struts are absolutely relevant on the 2014 Toyota Mark X. The Toyota Electronic Parts Catalogue (EPC) for the GRX130 series lists gas‑charged bonnet (hood) support dampers on this model, while the boot lid is counterbalanced by torsion bars rather than struts. Toyota’s Repair Manual for the GRX130 body section also outlines removal and installation of the bonnet support damper(s), including safety notes about handling pressurised units and retainer clips. That means anyone servicing a 2014 Mark X should treat the bonnet supports as gas struts and maintain or replace them when they’re tired.

The gas struts on the Mark X do a simple but important job: they help lift and hold the bonnet safely while work’s done in the engine bay. Charged with nitrogen gas and a light oil film, they provide smooth, controlled movement without the need for a manual prop rod. Over time, seals wear and gas pressure drops, especially with heat cycles, road grime and age. When that happens, the bonnet can feel heavy, drift down, or refuse to stay up on a chilly morning — a clear sign the struts are on the way out.

As part of regular servicing, quick checks go a long way:

• Open the bonnet and see if it lifts smoothly and stays up without sagging.
• Inspect the strut rods for oil misting, scoring or pitting — any damage accelerates seal wear.
• Listen for creaks at the ball-joints, worn sockets can pop off under load.

Replacement is straightforward but safety matters. Always support the bonnet with a prop or a mate helping out, and replace struts in pairs so lift is balanced. Don’t clamp the rod with pliers or lubricate it — marks and sticky films ruin the seals. Refit new circlips or retainers as specified rather than reusing tired ones. In typical Aussie and Kiwi conditions, expect around 5–10 years from bonnet gas struts, shorter if the car lives outdoors or racks up big kilometres in high heat.

Sticking with quality, vehicle‑specific struts for the GRX130 keeps the bonnet action factory‑clean and removes the risk of an unexpected drop. It’s a small fix that makes every service safer and easier.

Popular questions about 2014 Toyota Mark X gas struts

How can someone tell if their Mark X bonnet struts are failing?
If the bonnet won’t stay up, drops in cold weather, or needs a hand to lift past halfway, the struts are likely weak. Oil weeping on the rod or ball‑joint looseness are also red flags. A quick side‑by‑side comparison with new struts will show how much assist has been lost.

Should bonnet gas struts be replaced in pairs?
Yes. Replacing both keeps lift and hold even across the bonnet, prevents twisting at the hinges, and avoids a new strut overworking against an old, soft one. It’s an inexpensive job that pays for itself in safety.

Is there any maintenance to extend gas strut life?
Keep the rods clean and dry — just wipe with a soft cloth, no grease or silicone on the rod. Make sure the ball‑joints are seated fully with good clips, and avoid using the bonnet as a handhold to pull the car forward in the garage. Heat and grit are the main enemies, so a garaged car usually gets longer life.