2025-01-15 · 5 min read
Proton X90 Common Problems Malaysia
Proton X90 (2023+): most complex Proton to date. 48V BSG belt inspection critical at 60,000 km. DCT shudder from 7-speed wet DCT — same family as X50/S70. Carbon buildup from 1.5T 4-cylinder TGDi direct injection at 60,000–80,000 km. Software updates important — early units may have ADAS calibration issues. 7-seater: third-row legroom tight for adults.
Proton X90 Common Problems Malaysia
The Proton X90 (2023+) is Proton's 3-row 7-seater flagship SUV using the 1.5T TGDi engine (same family as X50/S70) paired with a 7-speed wet DCT and a 48V mild-hybrid system. The 48V belt-starter-generator (BSG) assists the engine and enables micro-regenerative braking. Direct injection means carbon concern at 60,000–80,000 km. The X90 is heavier than X70 — suspension, brake, and DCT loads are higher.
Top Issues
- DCT shudder at low speed (same DCT as X50/S70) — fluid and software update
- Carbon buildup 60,000–80,000 km (direct injection)
- 48V BSG belt wear — check at 80,000 km; RM 350–600 belt replacement
- Heavier SUV = brake pads 40,000 km check; struts wear earlier than X50
- 3-row cabin: 3rd-row A/C duct and rear blower efficiency — clean rear vents annually