2026-07-22 · 5 min read
Mercedes G-Class Common Problems Malaysia — W463/W464
G63 AMG M177 common issues: rear differential breather seal leak, transfer case fluid degradation, heavy fuel consumption in city (20–25 L/100km), and AIRMATIC creaks on older W463. Electrical gremlins from the body control module are also reported.
G-Class W463 Common Issues
- Rear differential breather seal leak — gear oil weeps onto skid plate
- Transfer case fluid degradation — service every 40,000 km
- High fuel consumption: G63 AMG city 20–25 L/100km is normal
- BCM electrical gremlins on older W463 — XENTRY scan recommended on used purchase