Cooling fan not coming on after turning engine off

[MY15.50i]

My x5 50i N63TU came back after coolant flush and noticed the fan that usually stays on for a couple of minutes after turning off the engine does not come on anymore. I took the car back to my indy shop they looked at it and couldn't find anything wrong with it.
Pulled ISTA and didn't find any codes even after driving it for more than 10K miles miles. AC is working fine.

Is this normal?

I do sometimes smell a faint burnt plastic odor coming from the engine bay though after a toasty summer day which I never experienced before when the fan was running.

[dentprotony@gmail.com]

Does the fan come on when the ac is on ?

[MY15.50i]

Originally Posted by dentprotony@gmail.com

Does the fan come on when the ac is on ?

Not if the engine is off.

[Qsilver7]

Originally Posted by MY15.50i

My x5 50i N63TU came back after coolant flush and noticed the fan that usually stays on for a couple of minutes after turning off the engine does not come on anymore.

Is this normal?

Yes, it can be normal. There are approx 5 criteria (see info below for the exact criteria) that causes the electric coolant pump (#1 in diagram below) to continue to run after engine shut down. And the electric fan (#7 in diagram below) can run up to 11 minutes after shut down. If the criteria is NOT being met for after-run…then it won’t run.

If the electric fan fails…it will leave diagnostic info as to its failure.

[MY15.50i]

Originally Posted by Qsilver7

Yes, it can be normal. There are approx 5 criteria (see info below for the exact criteria) that causes the electric coolant pump (#1 in diagram below) to continue to run after engine shut down. And the electric fan (#7 in diagram below) can run up to 11 minutes after shut down. If the criteria is NOT being met for after-run…then it won’t run.

Thank you very much!

[Qsilver7]

Originally Posted by MY15.50i

Thank you very much!

No problem…if the fan had a fault…it should have been picked up when ISTA was run.

[Dasky_spas]

Originally Posted by Qsilver7

No problem…if the fan had a fault…it should have been picked up when ISTA was run.

If an akks shutter error was coded out, is it likely to have disabled the radiator fan as well?

[Qsilver7]

Originally Posted by Dasky_spas

If an akks shutter error was coded out, is it likely to have disabled the radiator fan as well?

Sorry, but I don't know. I'm not familiar with the active shutters...my f15 X5 doesn't have them and neither does my f06 650ix GC.

[jbfrancis3]

Originally Posted by Dasky_spas

If an akks shutter error was coded out, is it likely to have disabled the radiator fan as well?

I don't think this applies to an F15 anyway