There should be an electric fan in front of the condenser that comes on at a certain temperature or pressure to move air through there. They're known to fail, and if it's running you should hear it easily.

The title of your post contains the word "upgrade," but you didn't make it clear whether you're looking for a further upgrade or you consider the work already done to be an upgrade.

If everything is working as designed and that still isn't enough, then yes there is an upgrade. Later models had two smaller electric fans instead of big one. Fitting them to your car would also involve modifying the radiator support, but it has been done.

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
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