Mercedes-Benz CLS — 传动轴轴节

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.

• 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

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.