Parts for your 2016 Toyota Mark x-Gas struts

2016 Toyota Mark X gas struts — bonnet lift supports that keep things easy and safe

Based on Toyota service information for the GRX130 series (Body – Hood section) and the Toyota Electronic Parts Catalogue, the 2016 Toyota Mark X is fitted with gas-charged bonnet lift supports (often listed as “hood support dampers”). Multiple aftermarket application guides for 2009–2019 Mark X also supply direct-fit bonnet struts. The boot on this sedan uses torsion-bar hinges rather than gas struts, so “gas struts” are relevant to the bonnet only, not the boot.

The Mark X’s bonnet gas struts are there to take the weight of the bonnet and hold it steady, so there’s no mucking about with a prop rod while doing fluids, filters or a quick look-see. They’re nitrogen-charged dampers that provide smooth, progressive lift and secure support, which is especially handy on sloped driveways or windy days.

Over time, seals age and pressure drops, so performance tails off. A healthy strut should start assisting lift after the first third of travel and hold the bonnet high without drifting. When they’re tired, owners notice the bonnet feels heavy, needs two hands to raise, or won’t stay up when it’s cold. A light oil film weeping from the shaft or any stiction are also tell-tales.

• Recommended practice is to replace bonnet struts in pairs to keep lift and hold balanced.
• Support the bonnet with a prop or a helper before removing any hardware. Eye protection is a smart move.
• Do not lubricate the chrome shaft, grease attracts grit and chews out the seals. Just keep it clean.
• Cold weather can make weak struts feel worse, if they struggle in winter, plan a replacement.
• Choose OE or quality aftermarket units matched to the Mark X, correct force rating stops slam-shut or half-open dramas.

During regular servicing, a quick functional check is easy: raise the bonnet, note how strongly it lifts and holds, and listen for creaks. If there’s any droop or bounce, it’s time. Fitting new struts is straightforward with basic tools—most use ball-stud clips—so it’s an easy add-on to a service visit. Done right, fresh gas struts make the Mark X feel newer, safer, and far less of a hassle in the shed or on the driveway.

Popular questions about 2016 Toyota Mark X gas struts

Do all 2016 Mark X models have bonnet gas struts?
Yes, GRX130-series Mark X sedans use gas struts on the bonnet. The boot uses torsion bars, so there are no rear gas struts to replace on the factory setup.

How long do the bonnet gas struts usually last?
Typically 5–10 years depending on climate and use. Heat, cold, and grit wear the seals. If the bonnet no longer stays up confidently—or feels heavy—it’s time for new ones.

Can they be replaced at home?
Absolutely. With the bonnet safely propped, pop the retaining clips, swap the struts one at a time, and click them onto the ball studs. It’s a quick job with basic tools, but a workshop can sort it during a routine service too.