N18 Prince (LCI)
MINI · 1.6L Turbo I4
2011–2014
"Improved Prince. Fixed N14 timing chain (mostly). Still has carbon buildup + thermostat. Better but not problem-free."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 6
High-pressure fuel pump failure
▸Long cranking, stalling, power loss
HPFP fails suddenly. Keep BMW/Bosch part.
Αντλία υψηλής πίεσης χαλάει ξαφνικά. 500-1200 EUR.
Carbon buildup on intake valves
▸Power loss, rough idle, misfire
Direct injection = no valve washing. Walnut blasting every 60-80k km.
Walnut blasting κάθε 60-80k km. 400-800 EUR.
VANOS solenoid failure
▸Rough idle, loss of torque, CEL, startup rattle
Improved over N14 but still fails. BMW LL-01 oil critical.
Βελτιωμένο από N14 αλλά χαλάει. Μόνο BMW LL-01 λάδι. 150-400 EUR.
Thermostat / housing failure
▸Overheating warning, fluctuating temp, coolant loss
Electronic thermostat + plastic housing. Common MINI/BMW trait.
Θερμοστάτης + πλαστικό σώμα. Κοινό MINI/BMW. 200-500 EUR.
Water pump failure (electric)
▸Overheating, coolant warning
Electric pump fails without warning. Replace at 100k km.
Αντλία νερού χαλάει ξαφνικά. Αντικατάσταση στα 100k km. 300-700 EUR.
Timing chain / tensioner wear
▸Chain rattle on cold start >5 sec
Improved duplex chain. Better than N14 but not immune.
Βελτιωμένη αλυσίδα. Καλύτερα από N14. 600-1500 EUR.
Models with N18 Prince (LCI) 3
Other MINI Engines
B48 2.0 (Cooper S)
2.0L Turbo I4
View details → Compare: N18 Prince (LCI) vs B48 2.0 (Cooper S)B38 1.5 (Cooper)
1.5L Turbo I3
View details → Compare: N18 Prince (LCI) vs B38 1.5 (Cooper)N47C16 1.6d
N47C16/W16D16 1.6 Diesel
View details → Compare: N18 Prince (LCI) vs N47C16 1.6dTuning Potential
250hp Stage 1
Frequently Asked Questions
Is the MINI N18 Prince (LCI) reliable?
The MINI N18 Prince (LCI) scores 62/100 with a verdict of CAUTION. It has 6 documented issues with total repair costs between €2,150 and €5,100.
What are the common problems with the N18 Prince (LCI)?
The most common issues are:
- High-pressure fuel pump failure — high, repair cost €500–€1,200, 80,000 km–150,000 km
- Carbon buildup on intake valves — moderate, repair cost €400–€800, 50,000 km–100,000 km
- VANOS solenoid failure — moderate, repair cost €150–€400, 60,000 km–120,000 km
- Thermostat / housing failure — moderate, repair cost €200–€500, 50,000 km–120,000 km
- Water pump failure (electric) — moderate, repair cost €300–€700, 60,000 km–130,000 km
What cars use the MINI N18 Prince (LCI)?
The N18 Prince (LCI) is found in:
- Cooper S LCI (2011–2014)
- Countryman Cooper S (2011–2016)
- JCW LCI (2011–2014)
How much does it cost to repair the N18 Prince (LCI)?
Total potential repair costs for all 6 known issues range from €2,150 to €5,100. The most expensive issue is typically .
What years was the N18 Prince (LCI) produced?
The MINI N18 Prince (LCI) was produced from 2011 to 2014. It is a 1598cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.