2026-07-22 · 5 min read
Mercedes A-Class Oil Leak Problems Malaysia — W177
W177 A-Class M260/M282 oil leaks: oil separator hose, valve cover gasket, and turbo feed line are most common leak points. Malaysia workshop repair cost RM 300–900.
A-Class W177 Oil Leak Points
- Oil separator hose crack — most common; causes blue smoke on deceleration and PCV pressure issues
- Valve cover gasket — weeps at rear corners on higher-mileage W177s
- Turbo oil feed line banjo bolt seal — small drip onto heat shield
Repair Cost
- Oil separator hose: RM 200–400
- Valve cover gasket: RM 300–500