2025-01-15 · 5 min read
Proton S70 Common Problems Malaysia
Proton S70 (2023+): DCT shudder on the 7-speed wet DCT — same family as X50 DCT. DCT fluid every 40,000 km is critical. Carbon buildup from 1.5T 3-cylinder direct injection at 60,000–80,000 km. 3-cylinder vibration at idle is characteristic, not a fault. Software update history important — early units may need Proton SC calibration update. First Proton sedan in years: parts sourcing developing.
Proton S70 Common Problems Malaysia
The Proton S70 (2023+) uses the same 1.5T TGDi 3-cylinder engine and 7-speed wet DCT as the X50, based on the Geely Emgrand/Binrui platform. Direct injection means carbon at 60,000–80,000 km. DCT fluid every 40,000 km is critical. As a newer model, long-term reliability data is still accumulating — but the powertrain is proven in X50.
Top Issues
- DCT shudder at low speed — fluid quality and change interval are the fix
- Carbon buildup at 60,000–80,000 km (direct injection 3-cylinder)
- 3-cylinder inherent vibration — normal; worse if engine mounts worn by 80,000 km
- Software/calibration updates for DCT from Proton dealer — always keep firmware current