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BMW Mini Cooper
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 Posted: May 11, 2021 09:39AM
Total posts: 2100
Last post: Oct 25, 2021
Member since:Dec 29, 2004
Cars in Garage: 1
Photos: 9
WorkBench Posts: 0
Thanks for the follow-up. Glad the problem was resolved!

 Posted: May 6, 2021 02:20PM
Total posts: 6
Last post: Jul 15, 2021
Member since:Jan 27, 2010
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Problem was a failing battery causing voltage spikes. The battery was replaced and code cleared, fans runs normally. It appears when the ECU kept seeing erratic sensor reading it defaulted to constant fan.

 Posted: May 4, 2021 12:20PM
Total posts: 6
Last post: Jul 15, 2021
Member since:Jan 27, 2010
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Car has been in the shop a week and they have not solved the problem.

 Posted: May 3, 2021 06:22AM
Total posts: 2100
Last post: Oct 25, 2021
Member since:Dec 29, 2004
Cars in Garage: 1
Photos: 9
WorkBench Posts: 0
I suspect there is a problem with one of the coolant temperature sensors which is not an uncommon problem. 'Typically' - a new thermostat housing will fix the problem.

Let us know what your shop finds out.

 Posted: Apr 30, 2021 12:08PM
Total posts: 6
Last post: Jul 15, 2021
Member since:Jan 27, 2010
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
It's not a bad relay.

 Posted: Apr 30, 2021 11:38AM
Total posts: 988
Last post: Oct 27, 2021
Member since:Jul 24, 2014
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Stuck relay, bad sender, wiring troubles?

 Posted: Apr 30, 2021 09:43AM
Total posts: 6
Last post: Jul 15, 2021
Member since:Jan 27, 2010
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
For you Mini experts. It's 2015 Countryman S, 54,000 miles, the cooling began running constantly. The engine can be dead cold over night, as soon as you start the engine the fan is on. As a matter of fact it will start just pushing the start button without actually starting the engine. Once the car is shutdown it will shutdown 6 minutes later. The only code it shows a PO128 code, low coolant temperature, low temperature is not supposed to start the fan, high is. It has no coolant leak, the system is full and I drove it 1000 miles at 70-75 MPH with the A/C on. It runs as normal. It's been in the shop for 3 days and they haven't called to tell me they found the problem. Searched the internet and could not find any mention of a similar problem.