Compressor noise coming from rear...is it normal?

[Cyber_95]

I hear my compressor running while driving, sometimes daily. It usually runs for a few minutes, then I hear a distinct noise like a pressure relief valve opening, a half second of air, then the compressor noise stops. I also don't notice any particular change in the suspension height while this occurs, nor do I see a pattern or consistency when I hear the compressor turn on while driving.

If it continues I'll note the exact date and time I notice it and submit a ticket. Based on my past experience with my four other Teslas, it really helps the technician if you have the exact date and time noted for them to troubleshoot in the service logs.

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[HaulingAss]

anyone else out there notice their rear compressor randomly kicking in? Mine still does it from time to time, and I can only hear it if I turn down the music and listen for it.

It stays on for a good minute or so, and sometimes even longer, but then stops. If I look at the height settings, the car is not moving up or down either.

Yes, it's normal for the compressor to periodically recharge the pressure tank. That's why it has a compressor. I'm not privy to the algorithms used to keep the tank in a certain pressure range, but it doesn't seem unusual that would it would be automated (optimized) and not come on when you might most expect it. The frequency of filling would depend upon how often the truck raises and lowers, amongst other more minor factors.

The frequency of suspension raising/lowering is dependent upon your ride settings. Some suspension settings cause the compressor to cycle more often. In addition, there are also remembered locations. If you adjust the ride height at a certain location, it will remember that location and try to set the same ride height at the location in future visits (unless you specifically tell it not to). I think the logic should be reversed; it should only remember the location if you tell it to.

If you want minimal compressor use while in the on road driving modes, set the preferred ride height to lower instead of higher. Higher causes more cycling of the compressor because it raises and lowers depending upon the vehicles speed.

And setting Easy Entry Mode as the default height whenever you put it into park will increase compressor cycles. There is nothing wrong with using these features, just know that it will increase the amount of time the compressor is running. And the compressor will pick it's own time to run based on criteria we can only guess at.

Maybe Tesla should release a basic schematic of the compressor on/off algorithms? For enthusiasts, of course, no one else really cares.

 

[JeffTutorials]

If your compressor is loud in the cabin, this is not normal operation.

Take it into service and ask them to adjust the bracket that holds the compressor.

Service invoice is attached below:

 

[Cyber_95]

If your compressor is loud in the cabin, this is not normal operation.

Take it into service and ask them to adjust the bracket that holds the compressor.

Service invoice is attached below:

Thanks! I have a service appointment for 1/7 and checking the compressor noise is one of the line items.

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