xDrive30i (N52 petrol)
2007–2010 · petrol · 2996cc · 272hp
Engine codes: N52
Reliability, common problems and owner reviews for the Bmw X5 xDrive30i (N52 petrol). Check this before you buy used.
The N52 straight-six petrol is smooth and fundamentally durable, but it's badly outgunned by the X5's two-tonne-plus bulk — genuinely thirsty for the performance you get. Chain-driven and robust mechanically; the age items are the electric water pump and thermostat (plan to replace), valve-cover and oil-filter-housing gaskets, and VANOS. No design disasters, but most X5 buyers want a diesel — the petrol only suits low-mileage, fuel-cost-tolerant use.
Same engine, other cars
This is the same physical engine (N52) sold under different names across brands. Reliability is broadly shared — cross-check these:
Known Issues
N52 electric water pump and thermostat fail with age → overheating risk.
Fix / Workaround: Replace pump + thermostat proactively.
Repair cost: €350–€800
Typically appears after: 130,000 km
Valve-cover and oil-filter-housing gaskets weep oil.
Fix / Workaround: Replace gaskets.
Repair cost: €150–€600
Typically appears after: 140,000 km
Mileage Thresholds
After 200,000 km: Durable; cooling is the watch item.
Pre-Purchase Checklist
- ☐Water pump + thermostat history
- ☐Gasket leak check
- ☐Thirsty — diesel is the sensible X5
Frequently asked questions
Is the Bmw X5 xDrive30i (N52 petrol) reliable?
Maint. Sensitive — The N52 straight-six petrol is smooth and fundamentally durable, but it's badly outgunned by the X5's two-tonne-plus bulk — genuinely thirsty for the performance you get. Chain-driven and robust mechanically; the age items are the electric water pump and thermostat (plan to replace), valve-cover and oil-filter-housing gaskets, and VANOS. No design disasters, but most X5 buyers want a diesel — the petrol only suits low-mileage, fuel-cost-tolerant use.
What are the common problems and reviews for the Bmw X5 xDrive30i (N52 petrol)?
The most commonly reported problems: Electric water pump / thermostat, Gasket leaks (VCG / OFHG).
Is a used Bmw X5 xDrive30i (N52 petrol) worth buying?
Fine if serviced correctly — but it punishes neglect hard. History and the right consumables matter.