1.8 / 2.0 MIVEC (4B10 / 4B11)
2007–2017 · petrol · 1998cc · 150hp
Engine codes: 4B10, 4B11
Reliability, common problems and owner reviews for the Mitsubishi Lancer 1.8 / 2.0 MIVEC (4B10 / 4B11). Check this before you buy used.
The 1.8/2.0 4B-series MIVEC is a strong, long-lived engine — the non-turbo 2.0 (4B11) is good for ~300,000+ km. The one thing to watch is timing-chain stretch: the ECU monitors it and a triangle warning light with rough idle means the chain has worn (can jump a tooth and cause damage if ignored). It's chain-tension discipline, not a design flaw — a serviced car with a quiet chain is a dependable, durable engine. Often paired with a CVT (check gearbox health).
Same engine, other cars
This is the same physical engine (4B10) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
Chain stretches on neglect/hard use; ECU flags it (triangle light + rough idle); can jump a tooth and damage valves.
Fix / Workaround: Strict oil changes; replace chain kit when flagged or rattling.
Repair cost: €400–€900
Typically appears after: 150,000 km
CVT-equipped cars need fluid discipline; shudder/overheat if neglected.
Fix / Workaround: Fresh CVT fluid on schedule; avoid overheating.
Repair cost: €200–€2500
Mileage Thresholds
After 150,000 km: Watch chain-stretch warning.
Pre-Purchase Checklist
- ☐Cold-start chain rattle / triangle warning check
- ☐If CVT, fluid + shudder history
- ☐Otherwise very durable
Frequently asked questions
Is the Mitsubishi Lancer 1.8 / 2.0 MIVEC (4B10 / 4B11) reliable?
Maint. Sensitive — The 1.8/2.0 4B-series MIVEC is a strong, long-lived engine — the non-turbo 2.0 (4B11) is good for ~300,000+ km. The one thing to watch is timing-chain stretch: the ECU monitors it and a triangle warning light with rough idle means the chain has worn (can jump a tooth and cause damage if ignored). It's chain-tension discipline, not a design flaw — a serviced car with a quiet chain is a dependable, durable engine. Often paired with a CVT (check gearbox health).
What are the common problems and reviews for the Mitsubishi Lancer 1.8 / 2.0 MIVEC (4B10 / 4B11)?
The most commonly reported problems: Timing chain stretch, CVT health (auto).
Is a used Mitsubishi Lancer 1.8 / 2.0 MIVEC (4B10 / 4B11) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.