The engine shows good reliability with a risk score of 4.5 out of 10. The main weakness is the electric water pump, which is a higher-severity issue but typically predictable with age. Regular cooling system maintenance keeps overall ownership risk low.
BMW N52
N52 Engine
The N52 is a petrol engine manufactured by BMW. It has a displacement of 3.0 liters and was produced from 2004 to 2015.
Typical Use Cases
- BMW 3 Series (E90/E91): 2005–2013
- BMW 5 Series (E60/E61): 2005–2010
- BMW X3 (E83): 2006–2010
- BMW X5 (E70): 2007–2013
- BMW Z4 (E89): 2009–2014
This overview summarizes the reliability of the BMW N52, including common issues and cost drivers.
Technical Specifications
Manufacturer
BMW
Fuel Type
Petrol
Displacement
3.0 L
Production
2004–2015
Power Output
215 hp
Emissions
Euro 4, Euro 5
Reliability Analysis
Recommended
Autoscore Verdict
Recommended. The risk score of 4.5 indicates a dependable engine with a known cooling system weak point.
Risk Score
4.5
out of 10
Common Problems & Weak Points
| Issue | Typical Mileage | Repair Cost (Est.) | Severity |
|---|---|---|---|
| Electric Water Pump Failure | ~110,000 km | €700 – €1200 | High |
Electric Water Pump Failure
The N52 uses an electric water pump that can fail suddenly. When it does, the engine may overheat quickly and trigger limp mode. This is a medium-probability issue typically appearing around 110,000 km. Replacing the pump and thermostat usually costs 700 to 1,200 EUR.
Typical Mileage: 110,000 km
Cost: €700–1200
Buyer's Inspection Checklist
- Ask if the electric water pump and thermostat have been replaced.
- Watch for any overheating warnings or fluctuating temperature readings on the dash.
- Inspect service history for coolant flushes and cooling system repairs.
- During a test drive, confirm stable operating temperature under load.
Frequently Asked Questions
Is the N52 engine reliable?
The N52 has known weak points, but with good maintenance the reliability is solid. See the risk analysis and common problems for specifics. Start a report for a specific car.
How expensive are typical repairs?
Common repairs fall into a mid-range cost band depending on the issue and workshop. Check the cost ranges in the table. Use the used car report for specific listings.
Which model years are best for this engine?
Newer production years often include technical updates. Review the production years and revisions in the specs. Use Car Check for quick screening.