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Rear subframe - i asked them to check specifically that, 4 times - they said it is ok. I went under the car and carefully checked all contact points/joints at the subframe- no cracks. And yes, they acknowledged the knock.

I was not given any explanation on why DU went bad. After DU replacement, i am still fighting nasty knock from rear during acceleration (4 visits to SC later they still can’t find a source). Considering taking car to @wk057 for diagnostic as i am running out of options 😕

Update - 4th visit to SC didn’t fix anything, they can’t find a source of the knock. Any advice on reputable mechanics in DMV(ideally Ashburn) area?

not yet, but planned to do it. it seems like it is coming from the driver's side, but sometimes I can hear it from center/passenger side too. it is ALWAYS one distinct clunk/knock. will record the video soon ( planning to set up GoPro on the subframe - maybe that will make it more clear )

mine is happening on all ride heights. it is easily reproduced - it happens when the load shifts, like something, is moving in the rear of the car back and forth. It is not only the sound, but I can feel something hitting the metal. it happens ONLY on acceleration, it does not knock on when I...

Did you figured out what was the source of the knock? I have similar issue - knock on acceleration, subframe seems in tact

Resurrecting the topic Did you find a source of the problem? I have similar issue - once my DU was replaced car developer noticable clunk/knock on the acceleration- like something is shifting in the rear and hitting the metal. It does not appear on reverse, on bumps etc - only on acceleration...

Update 6: Car is fixed! Though it is notably slower with new DU - or new revisions of the DU are “corked”, or i got used to MSLR L+ Also, I believe i had an option to select 48A charging at home, but now it is limited to 40A. Any ideas?

Update 5: got a loaner car, model S performance ludicrous with ludicrous+ That car is on another level Still no eta for DU, but they may take their time🙂

Update 4: Still no estimate for replacement DU delivery date. They said the part was ordered but they can't provide an ETA. No loaner.

If Tesla SC would have the same approach i’d be in a loaner last week 🙂

I would assume this is a rhetorical question 🙂

Update 3: got uber credits, but no loaner. SC saying they don’t have one (tesla SC in Arlington) Timeline for repair - said they need to ship the DU from CA and might take 4+ weeks(!!!), though the app is saying that estimate repair completion is June 6th (1 week from now) Anyone dealt with...

Update: Drive unit is dead. Attaching the estimate. $4800 for the DU replacement that will be under warranty seems “reasonable”, though i wish to have smaller problems then this. PS: tesla yet to tell me the ETA for repair, nor provide with loaner/uber credits.

Thanks for your input! after searching the forum I saw that those errors might be connected to other units that are hooked up to HV loop ( AC, battery heater, DU ), but not necessarily the HV battery itself. Will wait for a response from Tesla - have you had similar issues that make you believe...

i wish that would be 12v battery, though error codes suggest that “isolation fault, external to HV battery “ If I understand those codes correctly, battery is protecting itself as it sees a short of some HV component outside the main battery. But that is mine interpretation

Good evening, everyone! So pretail to my story: bought MS85 just a month ago, 57k miles on the clock. The car is out of warranty. Last friday i was driving to drop off my son in daycare other day, got “car may not restart” error. Interestingly, nothing else was affected - the speed was not...

That is what I call customer-oriented service! I am awaiting my BMD but my car decided to crap on me this morning. Was driving fine when the error " may not restart" popped up. Aftermath: BMS_W151 - Vehicle may not restart BMS_f151 - Unable to start the vehicle BMS_f071 - Unable to start the...

Wow, sorry to hear this! I think your best bet would be a 3rd party shop such as Gruber Motors, Electrified Garage, or 057 technology. Their reps are on this forum - I am sure you will be able to fix it at a fraction of the cost quoted by Tesla/.

Thank you! it is hard to validate the deals now with those car prices ;) 2014, S85, free connectivity/Supercharger, Subzero package, yacht interior, air suspension, Pano roof 56k odo, a bit under 40K out of the door. at 90% charge, it shows me a 231mi estimated range, didn't charge to 100%...

* edit - 2014 MS 85

Hi All! new member here, just purchased the 2015 MS 85. Signed up for the warranty with 057 yesterday, will wait for a dongle to have insurance activated.