Hi. Could I take you up on that offer to get a copy of your invoice please ([email protected])? Like others, my 2018 M3's PCS has 1 failed module that was likely there for years & undetected by me until I finally installed 48A EVSEs, & now being out of the basic warranty my service center wants to charge me for the replacement. Thanks!
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Power Conversion System (PCS) failure
- Thread starter Concestor0
- Start date
I think it is most likely your 12v battery. It was the case for my car until I finally figured it out. When updating the firmware and reaching 60% install mark, the HV connection disconnects and the 12v has to continue performing the update w/o being charged. This is when the update usually fails. Once the 12v battery drops below a certain threshold, the update aborts. Even with the amp off, there is a small current draw which weakens the battery over time.
Thanks for the input. Maybe I should try with a trickle charger connected next time? I had to take my car in last month for them to diag the pcs and push the update and everything came back normal. As of today i am having the same issue with the newest update failing.
davewill
Active Member
I wouldn't. I'd want the service center to be able to reproduce the failure.Thanks for the input. Maybe I should try with a trickle charger connected next time? I had to take my car in last month for them to diag the pcs and push the update and everything came back normal. As of today i am having the same issue with the newest update failing.
goldengate
Member
Add me to the huge list of people who have had this issue with the 2018 LR 3. Seems to me like there should be a class action lawsuit on a critical part which has a very high failure rate.
Yanquetino
Member
I agree that a class action lawsuit is warranted. To repeat myself for the umpteenth time, the electrical components in the High Voltage Battery service panel should be covered under the High Voltage Battery Warranty. Dodging that reality with legalese arguments is pathetic.
Scary. I have the same year and model and I've read quite a few PCS failures here.
Did Tesla give you a quote to fix it? Dumb question but does this affect SC also?
Vol16
Member
AMEN! I argued this point and won with my service center.
The problem is in the on-board charger portion of the PCS. This component is completely bypassed during DC Fast charging. So, you can use a Supercharger or other DC charger without problem if your PCS has partially or completely failed.
goldengate
Member
The repair is now $2100, not $1800 as it was before. That hurt, right at christmas.
Yanquetino
Member
Ugh. So much for the notion that Teslas have lower maintenance and repair costs. Even worse, unless Tesla is now installing more robust, durable, reliable PCS in their Model 3 and Y, these breakdowns will only multiply exponentially in the coming years.
If you look at who has needed repairs, it very much looks like a batch issue in the earlier cars, 2018 or so.
stopcrazypp
Well-Known Member
Yep, it seems disproportonately to affect 2018s, and there was a TSB although a narrow one (perhaps too narrow). I guess we will see.
I know I was affected by and mine was built in October of 2018
Lucky for me I had Tesla cover it under a Goodwill service this year when it failed.
Only because originally they told me via the app that it would be covered under the high voltage battery warranty and then the service advisor told me that it wasn't but yet I already approved the invoice and all and made the appointment for it being covered and had to fight tooth and nail and had to get the service manager involved. I was very surprised by the service manager he immediately said don't worry we're going to cover it under a Goodwill service but future reference this technically is not covered under high voltage battery warranty.
And at the time it was going to be $1,800 I believe but the service manager covered it under a Goodwill service. Thank God
Lucky for me I had Tesla cover it under a Goodwill service this year when it failed.
Only because originally they told me via the app that it would be covered under the high voltage battery warranty and then the service advisor told me that it wasn't but yet I already approved the invoice and all and made the appointment for it being covered and had to fight tooth and nail and had to get the service manager involved. I was very surprised by the service manager he immediately said don't worry we're going to cover it under a Goodwill service but future reference this technically is not covered under high voltage battery warranty.
And at the time it was going to be $1,800 I believe but the service manager covered it under a Goodwill service. Thank God
Attachments
Same month mine was built and had I had a failure too.
goldengate
Member
Here's another way of looking at it. I spent $2000 on maintenance for a 5 year old car. That's $400 a year. Not bad. Because it was part of a tech service bulletin and a KNOWN issue, I still believe they should have covered it. My car is low mileage (32,000) so has not had as many charge cycles as a vehicle with double that. I'm sure had I driven and charged more (thanks, COVID) it would have failed during the warranty period.
Stop mashing up two totally different things.
Maintenance is almost nothing.
Repairs are the thing that is showing to be a problem.
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