2025-01-15 · 5 min read
Mazda CX-90 CV Joint / Driveshaft Malaysia
CX-90 AWD: front halfshafts with CV joints (front wheels are driven through the front differential). PHEV: front electric motor drives front axle through reduction gear — CV joint at electric motor output + outer CV joint at wheel knuckle. CV boot inspection at 60,000 km. Heavy SUV: CV joints under higher load than lighter vehicles. Rear: rear driveshaft with CV joints to rear differential. Grease leakage from torn CV boot: replace promptly to prevent joint seizure.
CV (constant velocity) joints connect the driveshaft to the wheels, allowing power to be transmitted at an angle as the suspension moves. In Malaysia, CV joints take a beating from speed bumps (bukit unta), potholes, and high mileage — especially on front-wheel-drive cars.
The classic clicking noise — what it means
- Clicking or popping noise when turning with acceleration — usually the outer CV joint
- Clunking noise on acceleration or deceleration in a straight line — inner CV joint or driveshaft coupling
- Vibration felt through the steering wheel or floor at certain speeds
- Grease spray inside the wheel arch — torn CV boot is the cause
Boot replacement vs full joint replacement
If caught early (torn boot but joint still smooth with no noise), a boot replacement can save the joint: RM 80–180 per boot including grease repack. If the joint itself is already clicking or rough, full replacement is needed: RM 250–600 per joint depending on the car.