2026-07-22 · 5 min read
Mercedes G-Class Oil Leak Malaysia — W463/W464
G-Class oil leaks: M177 V8 valley pan gasket between the two cylinder banks, camshaft cover gaskets, and the notorious rear differential breather seal that weeps gear oil onto the skid plate. Malaysia fix RM 500–2,500.
G-Class Oil Leak Points
- M177 V8 valley pan gasket (between cylinder banks) — oil accumulates in the V; repair RM 800–2,000
- Camshaft cover gaskets — oil seeps down engine sides; repair RM 500–900
- Rear differential breather seal — gear oil weeps onto skid plate; repair RM 400–800
Oil Leak Detection — Mercedes Engines
Common oil leak points on Mercedes-Benz petrol engines: valve cover gasket (most common — brown residue on top of engine, burning smell), camshaft adjuster solenoids (VVT solenoids — cause misfire codes if oil contaminates the plug wells), and the crankshaft front seal. For turbocharged models (M270/M274), also check the turbo oil feed and return line banjo fittings. Valve cover gasket sets cost RM 80–200 for parts; workshop labour adds RM 200–400. Any oil leak near the timing chain area must be repaired promptly — oil saturation of the chain tensioner causes premature failure.