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Mercedes-Benz/Mercedes-Benz A-Class/漏油问题

2026-07-22 · 5 min read

Mercedes-Benz A-Class — 漏油问题

Mercedes-Benz A-Class — 漏油问题

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
  • Valve cover gasket

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