2026-10-08 · 5 min read
Mitsubishi Xpander Head Gasket Malaysia
Head gasket failure is rare on the 4A91 under normal maintenance. Risk rises if the engine has overheated. Warning signs: white exhaust smoke, coolant level dropping without visible leak, milky oil on the dipstick. Prevention: maintain coolant system, never ignore temperature gauge spikes. If head gasket fails on an older Xpander, assess repair cost against vehicle value before committing.
Xpander Head Gasket
- 4A91 head gasket generally reliable — main risk is neglected cooling system
- Early warning: sweet smell from engine bay (coolant), temperature gauge rising
- Milky oil on dipstick or inside oil cap = coolant mixing with oil — serious issue
- Prevention: regular coolant checks and timely thermostat/radiator maintenance