About 2 weeks ago, I had to take my 2013 Model S to get serviced for what turned out to be a battery fault issue. The battery replacement was covered under warranty but they gave me an option to upgrade to a 70kwh battery for $2000 more. So I agreed to that. After waiting for the battery to come in, it was installed and was then discovered that another component had to be replaced, the ELECTRIC BATTERY HEATER (Part #1038901-00G) at a cost of $630. I had to technician explain what the issue was and why it was only discovered after the battery replacement. I was given an explanation that the error code was showing an external fault, rather than an internal fault after the battery was replacement. It was a bit suspicious, but I didn't press the issue too much as I thought I was still getting a decent deal with the battery upgrade. That original invoice after labor and taxes came out to $2969.
When I picked up my car earlier this week, from the moment I sat inside, was that suddenly my MCU display has a bunch of water bubbles formed at the top. After bringing it up to the Service Adviser, I was told that the technician said the bubbles were there when the car came in. It absolutely was not like this when the car first arrived. Unfortunately, I had no recourse because there is no way I could say that a person could have created that problem and I know that these MCUs suffer from 3 common issues (water bubbles, eMMC chip failure, yellow tinting) from reading forums. I was told the repair for the screen would be $1600 plus tax and labor.
Turns out this wasn't the only bad news. After I took the car home, the next morning I found out the car did not charge overnight as per its scheduled time. I tried to charge it manually, but after a few seconds the instrument cluster would show 2 messages "Unable to charge" and "Maximum AC charge rate reduced". After contacting Tesla, I took the car back to the center, and they confirmed that although the supercharging worked, the regular charger did not. Today, I was told that the Master 10kW Charger (Part #6009278-00F) needs to be replaced. No explanation was given (I'm awaiting a response). The replacement would cost $2703 for yet another issue that did not exist prior to my service appointment.
At this point, I am highly suspicious that the need to replace the charger is directly related to the battery upgrade as the 2 components are directly related. They are claiming that it is not covered under warranty, but I can't help but think there is liability on Tesla's part for creating new problems that did not exist prior to the initial battery upgrade.
Anyone considering doing a battery upgrade may want to be aware of subsequent problems that might arise.
I think Tesla should be liable for this issue, as it directly relates to the battery upgrade that was covered under warranty. Does anyone have any advice on any possible recourse I should explore? Someone has told me to take the service center to small claims court over the issue, but I am a fan of the company and a longer time investor, so I don't wish to engage in anything that would hurt the company's reputation. I just want my car back in working condition after already agreeing to nearly $3k in upgrades and repairs.
Any and all advice is appreciated. Thank you.