So true! This is one of my favorite tear downs: https://boingboing.net/2019/07/29/teardown-of-apples-lightning.html
Don - Thanks so much for all your work on the battery discharge issue. I was at the dealer today (had a run in with a curb so was having two wheels touched up) and mentioned I'd read about the recall. They checked and now I'm set up for a 13-Aug visit.So, I believe THESE TWO THINGS FIX THE 12V ISSUE I've had, and others have had.
1) Replacement of the 12v Battery, to correct a manufacturing defect.
2) A software update, including updates to the charging systems.
HARDWARE-------------------------------------
12-volt vehicle electrical system battery (lithium-ion battery)
Affected Vehicles:
There are 578 vehicles in North America affected by this campaign
Information:
Due to a manufacturing error, there is a possibility that the internal current sensor for the 12-volt vehicle electrical system battery does not meet the required specifications on the affected vehicles. As a result, the charge state will be calculated incorrectly and the 12-volt vehicle electrical system battery will then be totally discharged when the vehicle is parked up for extended periods without an external power supply.
Remedial Action:
Replace 12-volt vehicle electrical system battery (lithium-ion battery).
Parts:
V04015001BA 12-volt vehicle electrical system battery Qty:1
PAF106825 Cheese head bolt, M8 x 50. Strut to body. Qty:4
Scope:
Working time: Replacing vehicle electrical system battery ; Labor time 163 TU
Includes:
Removing and installing strut
Removing and installing wiper arm
SOFTWARE:--------------------------------------
WLG2 - Updating Software for Various Control Units VR8.7
Affected Vehicles
There are 2,387 vehicles affected by this campaign.
Updated Versions:
High-voltage power electronics, front and rear 0007
Control unit for high-voltage charger (OBC) 1079
High-voltage battery control unit (BMCe) E870
HV voltage converter 0899
Brake booster (electric brake booster) 0100
High-voltage DC charger (booster) 0990
Engine electronics (DME) 0005
Brake electronics (PSM) 0094
Driver’s seat and passenger’s seat adjustment 0064
Assistance systems (zFAS) 0355
Software Updates VR8.6 & VR8.7(marked below with * and in bold):
Navigation and infotainment: Porsche Communication Management (PCM)
- Quick Filter "Charging stations" is permanently visible in the PCM in order to select charging stations as a destination
- Last destinations and favorites, such as "Home" and "Work", remain stored
- Saved satellite map settings are optimized
- Registration via Porsche ID is improved
Assistance systems
- The functionality of Park Distance Control (PDC) is optimized and sporadic system failures that currently occur are corrected. *
Charging
- A new charging cable with a cable length of 7.5 meter can also be used in the future
- The charge state calculation is optimized and thus any limited system shutdowns are avoided.
- At-home charging is improved. Any premature disruption of the charging process is prevented *
- The calculation of the battery capacity is optimized further *
Air conditioning
- The functionality of the air conditioning is optimized: Temperature settings in the rear air-conditioning control panel thus remain constant and sporadic failures of the air conditioning are corrected
Chassis and driving comfort
- The starting comfort at full acceleration is optimized
- Possible chassis noises from the front axle area are reduced
- The lift function is improved. The set vehicle height is not lost after a restart *
- Software optimizations improve the functionality of the Porsche Stability Management (PSM) when driving downhill or during stop-and-go driving *
Digital cockpit display (instrument cluster)
- Various soware optimizations prevent the sporadic, short-lived display of various messages and thus improve the driving experience *
Seat adjustment
- On vehicles in non-Connect markets, the chosen seat memory settings of the driver's seat will now also be preserved after the driving readiness is complete
- In future, when using a guest profile, seat and ergonomic positions will be stored and will not be lost after a restart.*
Yes. My car was plugged in to my home charger, and I changed Timers & Profile settings.
Don:
How is that disappointing? There's still a bad battery in there...
Yes. I was just digging through paperwork this morning to answer that very question.
If you have not yet received your car, I am 99% sure you will already have the newest battery. (Cars with Active Repair Campaigns don't get delivered to Customers, they get held at Port or at the Dealership until everything is up to date)
I’m ignorant on Porsche processes...I didn’t know you could look up that info against your VIN yourself. How do you do that?
