Druza
Member
Hi guys, hope you’re all well.
I’m looking for some advice regarding my BMW E90 320D (N47).
The radiator fans seem to be kicking in earlier than expected. After driving about 12–13 km (normal driving, no traffic), both fans come on ….even with the aircon switched off.
We’ve run a full diagnostic and there are:
The car is not running hot, which is what makes this confusing. Everything appears normal, yet both fans activate consistently after that distance.
The vehicle does not have a DPF.
Has anyone experienced something similar on an N47? Could it be thermostat-related, fan control module or something else I should be looking at?
I’d really appreciate any advice or direction. I’m honestly scratching my head trying to figure this one out.
Thanks in advance 👍🏼
I’m looking for some advice regarding my BMW E90 320D (N47).
The radiator fans seem to be kicking in earlier than expected. After driving about 12–13 km (normal driving, no traffic), both fans come on ….even with the aircon switched off.
We’ve run a full diagnostic and there are:
- No fault codes
- No overheating
- No sensor faults
- No coolant leaks
- Coolant is circulating properly (water pump is working)
The car is not running hot, which is what makes this confusing. Everything appears normal, yet both fans activate consistently after that distance.
The vehicle does not have a DPF.
Has anyone experienced something similar on an N47? Could it be thermostat-related, fan control module or something else I should be looking at?
I’d really appreciate any advice or direction. I’m honestly scratching my head trying to figure this one out.
Thanks in advance 👍🏼
