2026-07-21 · 4 min read
Toyota Avanza Oil Leak — Common Spots Malaysia
Valve cover gasket, sump gasket and crankshaft seal are the most common leak points. Early detection prevents accelerated engine wear.
High-mileage Avanza commonly develops oil leaks from the valve cover gasket and crank seal. Old 3SZ-VE engines above 150,000 km are most at risk.
Common Leak Points & Costs
- Valve cover gasket: RM 150–280 to fix
- Crankshaft front seal: RM 250–400
- Sump plug threads (stripped): RM 80–150 for helicoil repair