Overheating while running A/C

[Icecream]

Just an update, problem Solved. Bad alternator. Replaced with 140AMP X5 alternator and coolant temps are max of 93c (and drop) in 125f indicated weather temps. This with AC om Auto set at 20-21c.

Which x5?

[TexaZ3]

I'm not really sure how bad alternator could have contributed to overheating. A bad slipping belt - perhaps, but an alternator?

[eacmen]

I'm not really sure how bad alternator could have contributed to overheating. A bad slipping belt - perhaps, but an alternator?

The pusher fan is electric which would be running when the AC is on.

[TexaZ3]

The pusher fan is electric which would be running when the AC is on.

Aux fan is electric, but cooling system should be capable of running at normal temps without this fan even being on at all.

[tlow98]

Aux fan is electric, but cooling system should be capable of running at normal temps without this fan even being on at all.

not if the AC is on

[0-60motorsports]

Which x5?

https://www.fcpeuro.com/products/bmw-140-amp-alternator-valeo-12317551253

[eacmen]

Aux fan is electric, but cooling system should be capable of running at normal temps without this fan even being on at all.

My experience is that if you're running AC at idle and car isn't moving a puller fan is not sufficient.

This is why I only run a pusher fan on the track car. My use case is sitting on grid and needing AC waiting to pit out or an extended black/red flag. At speed plenty of airflow over the rad.