Serpentine Belt: lifespan, maintenance and replacement

Typical lifespan: 50,000–100,000 miles.

Maintenance schedule

• Visual inspection for cracks/wear — Every 6 months
• Replace serpentine belt — Every 50,000–100,000 miles

Signs it needs replacing

• Squealing noise when starting the car
• Visible cracks or fraying on the belt
• Power steering or A/C stops working
• Battery not charging properly

Tips

Replace the tensioner pulley at the same time for best results.