mobe
Member
Is there a sound clip of this anywhere? I'm curious to hear it.
Edit: here it is;
Edit: here it is;
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if you are passive and accept that the sound is "normal" it will never be addressed by them.
if you are not happy with their decision, you could visit a different service center or you can move this issue up the chain to a district manager or all the way up to the mothership. the bottom line is that this is a major fault that must be addressed.I have a service appointment this weekend, and I'll address the issue with them again. Not sure exactly what I can say to convince them, but we'll see...
We have similar VIN'S so I asked to see if there was a service bulletin for my car & was told there wasn't that would finally fix the "balloon squeal" after 3 years & 2 DU's, maybe its for the P85's only...who knows.If you are talking about the milling noise, a DU swap will fix that.
If you are talking about the balloon squeal, a DU swap will likely have no effect since the sound is emanating from the battery contactors. I, too, had the balloon squeal at high power and eventually my VIN number qualified for the "switch upgrade". This particular update completely resolves the balloon squeal issue, but you only get this update if your VIN number qualifies.
Tesla just picked up my car for servicing a few items, including the balloon noise (which I started also experiencing intermittently on regen), and when I looked at the service estimate, I don't see anything about a balloon noise, but I do see the following item (note, I never mentioned anything about a power switch when I made the appointment), which further confirms the power switch replacement is the official fix for this problem:
"Concern: Customer states: Proactive Power Switch Replacement - We have been notified this vehicle has been remotely diagnosed that the Power Switch and Power Supply would benefit from the latest generation components."
that's a load of BS, it more than likely is the drive unit and if not addressed can lead to a catastrophic failure, insist on a replacement.Just had my recently-acquired CPO S85 in for various things including the balloon squeal. As typical they explained it as the battery contactors and no repair necessary. I can live with it (even if I don't like the sound), but I really don't want to have a contactor failure out of warranty that could have been prevented!
are you a tesla technician? how can you be so certain of your claim?If your DU unit fails, then yea, you're stuck, but it's not the drive unit making the balloon noise.
The drive unit was actually replaced as part of the CPO refurbishment. So I already have a new one of those at least.that's a load of BS, it more than likely is the drive unit and if not addressed can lead to a catastrophic failure, insist on a replacement.
it's replacement doesn't mean that it couldn't have failed againThe drive unit was actually replaced as part of the CPO refurbishment. So I already have a new one of those at least.
True, but they clearly explained that it's the contactor, not the drive unit.it's replacement doesn't mean that it couldn't have failed again