Parts for your 2019 Toyota Mark x-Cv joint

2019 Toyota Mark X CV Joint — purpose, service tips, and when to replace

Technical sources indicate the 2019 Toyota Mark X does use CV joints. Toyota service literature for the GRX130/135 series (Axle and Differential: Rear Drive Shaft, Front Drive Shaft for 4WD) and the Toyota Electronic Parts Catalogue (EPC, rear drive shaft assemblies in group 42/34) identify inboard and outboard constant velocity joints with serviceable boots and grease. New Car Features material for the GRX13# platform also describes its rear-wheel-drive layout with independent rear suspension, which uses CV-jointed half-shafts, the “Four” AWD grades add CV-jointed front drive shafts as well. So, whether it’s a rear-drive 250/350 or an AWD “Four”, CV joints are part of the driveline.

On the Mark X, the CV joint lets the driven wheels move up and down with the suspension and turn smoothly while transferring torque. In RWD models, they live in the rear half-shafts between the differential and each rear hub, in AWD grades, they’re at the front as well. They’re packed with high‑moly grease and sealed by rubber boots that keep water and grit out.

As part of routine servicing, it’s smart to eyeball the CV boots every 10,000–15,000 km or at each scheduled service. Look for cracks, splits, or grease flung around the inner wheel or underbody. Catching a tired boot early and replacing it (and refreshing the grease) can save the joint from wear. If a joint has already been run dry or contaminated, a complete shaft or joint replacement is the go.

Common signs it’s time for attention include:

• Grease spray near the hub, control arms, or undertray
• Clicking or clacking noises under load, especially on take‑off or gentle corners
• Vibration or shudder on acceleration at highway speeds
• Clunks when shifting from drive to coast

For replacement, quality matters—use parts specified for GRX13# Mark X. Many workshops prefer swapping the complete shaft assembly for reliability and warranty. Expect roughly 1.5–2.5 hours per side depending on side and drivetrain. After refit, ensure boots aren’t twisted, clamps are tight, and any required hub/axle fasteners are torqued to spec. If it’s an AWD “Four”, alignments and a quick road test on varying throttle help confirm the fix. Keep the tyres matched and pressures right to reduce driveline stress, and the Mark X’s CVs will stay happy for the long haul.

FAQs

Does a 2019 Toyota Mark X have CV joints?
Yes. Rear‑wheel‑drive models use CV joints in the rear half‑shafts, and AWD “Four” grades use them front and rear. This is documented in Toyota’s GRX130/135 repair manual sections for the drive shafts and in the Toyota EPC listings for rear drive shaft assemblies and CV boot kits.

How often should the CV boots be checked or replaced?
Have the boots inspected at every scheduled service or around 10,000–15,000 km. Replace a boot as soon as it shows cracking, tears, or grease leakage. A prompt boot and grease refresh can prevent a costlier joint or half‑shaft replacement.

What are the tell‑tale symptoms of a worn CV joint on a Mark X?
Look out for grease flung around the wheel area, clicking or clacking on take‑off or during low‑speed turns, and vibration under acceleration. If these pop up, get it checked before it worsens.