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 (2010–2016)
- 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.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.