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The guy told me 2.x fans mount in the bottom and sucks up all the dirt and crap. If you don't go in annually to have them cleaned, it will fail. Just passing info along.
Thanks for the comments. Sounds like the 1.5 Roadsters just need to have their cooling fan inlet inspected and cleaned annually. Is that something that an owner can do if they jack up the car, or does it have to be done by Tesla?
Okay thanks. I thought maybe the fan inlet area just needed to accessed from underneath is it could be cleaned by hand.
The guy told me 2.x fans mount in the bottom and sucks up all the dirt and crap. If you don't go in annually to have them cleaned, it will fail. Just passing info along.
That's because (if my memory serves me correct) the left blower on the dual blower upgrade (on the bottom) blows air up into the PEM, the right blower blows into the electric motor's cooling fins. I also believe they added another cooling fan up in the PEM. All this was done only after the dual fan/blower upgrade which the 2.0s didn't came stock. I believe Tesla only began putting two fans/blowers in the 2.x PEMS after identifying a cooling issue. I don't know where that cut-off is. And the previous design the single lower blower was trying to cool the motor down as well as force air up into the PEM.
If I owned a 2.x with the dual blower I'd find some way so that blower pulls fresh clean air from a high location, not low.
A lot of your information is not quite correct. The 2.x always had dual blowers. They never had a cooling issue (except on a track). The upgrade did several things. First they made the blowers much more powerful. The PEM cools off very quickly and stays cool. They also switched to a variable-speed single motor design with sealed bearings that runs both blowers. They installed a "snow dam" that keeps most of the dirt and debris out of the cooling system that used to build up. You still have to clean it out once a year but it's nothing like it used to be. The techs have always cleaned my motor cooling fins and all ducts at the same time they cleaned the PEM. The PIA Roadster survey suggests that the 2.x PEMs have not been replaced as often as the 1.5's. However, the sample size is probably too small for any definitive conclusions.
Whether you have a 1.5 or 2.x I still think they should have a large dust filter. It would be a lot easier to replace that every year than all the work cleaning everything out. They need a cabin air intake filter too.
There is room to run a duct from the driver's side intake port, over the rear wheel well cover, and down to the box around the blowers (I have the snow dam upgrade). I might give this a shot once my warranty expires.
There are two parts to the upgrade. First, they remove the TWO fan/motor assemblies (1 for PEM, 1 for motor) and replace it with a single variable speed motor that has two fans attached.
Second, the remove the sway bar to make room for the huge box that prevents most junk from getting into the fans, and put in a new sway bar that goes around the box.
Hope that's more clear. Yeah it only works with 2.x PEMs. And yes it does cool things down faster than the original setup.
Just removed and blew out my 1.5 PEM.
And yes it does cool things down faster than the original setup.
And yes, it is louder than the original setup.