Cooling louvers never open

[Sandman1847]

I have never seen my cooling louvers on the sides open. 2015 S85. Everything on the car works fine. AC is cold, and it supercharges up to 115kw peak and then drops like all the other older cars.

How do I check if the louvers work fine? Is there a way to make them open and close? It's been bugging me for a long time and I just want to know if they work!

 

[Uncle Paul]

They will only open when your car needs the additional air flow for cooling.

 

[GlmnAlyAirCar]

I have never seen my cooling louvers on the sides open. 2015 S85. Everything on the car works fine. AC is cold, and it supercharges up to 115kw peak and then drops like all the other older cars.

How do I check if the louvers work fine? Is there a way to make them open and close? It's been bugging me for a long time and I just want to know if they work!

From my limited understanding of the cooling system, the louvers primarily open when the battery needs passive cooling. In other words the battery needs cooling but ambient air should be sufficient. This is a fairly narrow set of conditions, so it is no surprise we don't see them open often, especially in the cooler months.

 

[cmarshack]

I have never seen my cooling louvers on the sides open. 2015 S85. Everything on the car works fine. AC is cold, and it supercharges up to 115kw peak and then drops like all the other older cars.

How do I check if the louvers work fine? Is there a way to make them open and close? It's been bugging me for a long time and I just want to know if they work!

They will usually open during supercharging.

 

[Sandman1847]

They will usually open during supercharging.

Do they open when first plugged in or through the session at random times?

 

[cmarshack]

Do they open when first plugged in or through the session at random times?

through the session at random times

 

[Sandman1847]

through the session at random times

Looks like I'm gonna have to set up a camera and record a full session!

 

[Jughead135]

Noob question alert:

New MS LR+. What/where are these louvers? Is this an issue for previous models, or do I have them? Any pics to share?

 

[Sandman1847]

Next to your fog lights. You’re under warranty you don’t need to worry. Just google cooking lovers Tesla you can also find videos on YouTube of them opening.

 

[Jughead135]

Next to your fog lights. You’re under warranty you don’t need to worry. Just google cooking lovers Tesla you can also find videos on YouTube of them opening.

Oh, not "worried" about anything--just trying to learn all I can about my car.

Thanks for the pointer/explanation. Got any pics or vids of them in action...?

 

[KalJoMoS]

Check here

 

[Jughead135]

Check here

Excellent! Thank you!

 

[Alysashley79]

you can actually hear the battery ramping up loudly at a super. If you were to sit in your car during a super session. It’s fairly quiet and then it gets really loud. Get out and look at them. Theyll be open.

 

[ElectricTravel]

How do I check if the louvers work fine? Is there a way to make them open and close?

Try setting the HVAC to Auto and the temperature to "LO" (turn the temperature down as low as it goes). It might take a minute or two for them to open up.

This has worked for me before, but like any Tesla vehicle behavior, it's subject to change in later software versions.

 

[dark cloud]

Do they open when first plugged in or through the session at random times?

Mine have not been open during supercharging, even when the condenser fans turn on full power, and even last summer when it was 90+ Fahrenheit. Tesla service has done a thermal test of the system since I noticed this happening, and it checked fine.

Yet the left louver opens all the time, when it doesn't need to, when I wake the car, in the middle of the night hours after driving; no idea why, and a few weeks ago I asked a different mobile technician about it and he says it does on his 2015 85D also.

If you want to see the louvres open just watch the car go through the next software update; you will see them both open and close, as well as all 4 door handles along with everything else the car tests when it updates. If they don't I would contact service centre.

 

[nativespinner]

They open whenever the cooling system needs more airflow over the condensers. Mine will open if it's hot outside and I precondition the car. The ac compressor will ramp up and fans will ramp up to high speed and louvers will open.

 

[sorka]

Do they open when first plugged in or through the session at random times?

They will open briefly even if they're not needed when you first start supercharging. If they don't, then they are defective. My passenger side broke once limiting my supercharging speed for 6 months before I realized the issue.

 

[Sandman1847]

They will open briefly even if they're not needed when you first start supercharging. If they don't, then they are defective. My passenger side broke once limiting my supercharging speed for 6 months before I realized the issue.

Haven’t checked yet because I’ve been driving much. The reason I was worried was due to limited supercharging speed but I can still get over 100kw at the supercharger and I heard if they are defective you won’t get over 60.

 

[sorka]

Haven’t checked yet because I’ve been driving much. The reason I was worried was due to limited supercharging speed but I can still get over 100kw at the supercharger and I heard if they are defective you won’t get over 60.

That is true. If you're getting over 100KW for more than 30 seconds, then your louvers are fine.

 

[Sandman1847]

That is true. If you're getting over 100KW for more than 30 seconds, then your louvers are fine.

Yeah my supercharging follows the usual taper that older 85kwh cars have these days. Starts super high at Low SOC and tapers to like 60 kW when the battery is about half charged. Sucks but it seems to be normal for the cars now.