HEATER FAILURE A REAL CONCERN

[rs38]

Interesting (apologies for going off topic), didn’t realise that VCDS works on a Taycan?

Address C5:

Therm. mgt. Labels: None
Control Module Part Number: 4KE 965 429 J HW: 4KE 965 429

Coolant heating:
Subsystem 5 - Part No SW: 9J1 963 507 E HW: 9J1 963 507 E
Component: HV_HEIZER H11 0016
Serial number: 00000000002227376638


54072 - Control Module for HV Heater 2
B182C 04 [047] - Internal System Fault
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Mileage: 27764 km
Date: 2023.03.05
(...)
HV heater 2 status: internal-HV heater: status: faulty
HV heater 2 status: internal-Heater circuit 1: OK
HV heater 2 status: internal-Heater circuit 2: OK
(....)

VCDS Version: Release 23.3.0 (x64) Running on Windows 10 x64
www.Ross-Tech.com

                Address C5: Therm. mgt.       Labels: None
Control Module Part Number: 4KE 965 429 J    HW: 4KE 965 429
  Component and/or Version: TME-Max       H08 0324
           Software Coding: 00
              ASAM Dataset: EV_ThermContrVISAU49X 002040 (AU58)
                       ROD: EV_ThermContrVISAU49X_002_AU58.rod
                
1 Fault Found:

54072 - Control Module for HV Heater 2
          B182C 04 [047] - Internal System Fault
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 1
                    Mileage: 27764 km
                    Date: 2023.03.05
                    Time: 16:14:21

                    Unlearning counter according OBD: 40
                    Expanded ambient data 1-Voltage terminal 30: 0.000 V
                    Expanded ambient data 1-Vehicle speed: 0 km/h
                    Expanded ambient data 1-System status: Control operation: ignition on
                    Expanded ambient data 1-Power quota setting by energy management: 1D
                    Expanded ambient data 1-Status of drive readiness hybrid: Engine start
                    Expanded ambient data 1-Ambient temperature: 9.00 °C
                    Expanded ambient data 1-current state of low temp.circ.: 00
                    Expanded ambient data 1-previous state low-temp.circ.: 00
                    Expanded ambient data 1-Operating time in the current state of the low temp.circ.: 00
                    Expanded ambient data 1-current state of high-temp.circ.: 00
                    Expanded ambient data 1-previous state of high-temp.circ.: 00
                    Expanded ambient data 1-Operating time in the current state of the high temp.circ.: 00
                    Expanded ambient data 1-current state of battery low temp.circ.: 00
                    Expanded ambient data 1-previous state of battery low temp.circ.: 00
                    Expanded ambient data 1-Operating time in current state of the battery low temp.circ.: FF
                    Expanded ambient data 1-current state of battery cold circuit: 00
                    Expanded ambient data 1-previous state of battery cold circuit: 00
                    Expanded ambient data 1-Operating time in the current state of the cold circuit: FF
                    HV heater 2 status: global-Target value: 0 %
                    HV heater 2 status: global-Requirement: active
                    HV heater 2 status: internal-Excess current reaction: OK
                    HV heater 2 status: internal-Temperature in control module: -50 °C
                    HV heater 2 status: internal-Internal malfunction: OK
                    HV heater 2 status: internal-Supply voltage: OK
                    HV heater 2 status: internal-Temperature 1: -50 °C
                    HV heater 2 status: internal-Temperature 2: -50 °C  (VCDS wrong temp interpretation)
                    HV heater 2 status: internal-Timeout: OK
                    HV heater 2 status: internal-Current: actual value: 0.00 A
                    HV heater 2 status: internal-Overcurrent: OK
                    HV heater 2 status: internal-Response error: OK
                    HV heater 2 status: internal-12 volt vehicle electrical system: 0.00 V
                    HV heater 2 status: internal-Excessive temperature protection: OK
                    HV heater 2 status: internal-Vehicle high voltage system: OK
                    HV heater 2 status: internal-HV heater: status: faulty
                    HV heater 2 status: internal-Heater circuit 1: OK
                    HV heater 2 status: internal-Heater circuit 2: OK
                    HV heater 2 status: internal-Heater circuit 3: OK

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[Hanny]

If you clear the faults does the error go and then reappear when you switch on the heating?

 

[BigBob]

Goody goody gumdrops. Mine just packed up. MY22 CT4S 10k on the clock. FFS.

update.
Told to call Porsche Assistance by Porsche service centre as earliest appointment to look at it is mid April. That's the only way to get it seen and at least diagnosed. It's nuts.

Update.

Heater failed on 27th Feb.
Car dropped in to Porsche West London on 1st March (I drove it in but as a Porsche assistance recovery).
Car collected today (7th March) with an 'upgraded' heater matrix and a couple of recalls done as well.

Porsche West London haven't always been my favourite recently, but they've absolutely AAA* the service and turn around on this. So well done them, thank you.

 

[DrMitch]

My heater went recently. Luckily they had a heater come in early for another car and "gave" it to me as my car was there already. So I was in the loaner Cayenne for only 2 weeks. Glad to have it back - but hoping this heater fares better than the faulty ones!!

 

[Englishtony2002]

Maybe it will be a software fix to existing unit similar to the eventual fix for 22kw charger issue.

What is the fix to the 22kW charger issue? I am having some fun and games with my AC charging, randomly stops after about 20-30 mins. I have the 22kW option.

 

[BigBob]

What is the fix to the 22kW charger issue? I am having some fun and games with my AC charging, randomly stops after about 20-30 mins. I have the 22kW option.

There was a fault on the 22kw option that basically turned the car into a brick and meant the hardware needed changing. They fixed the software issue as part of the very big update.

So if you're car is still doing something/charging, it's probably not the killer 22kw unit that's the issue specifically.

When i've encountered similar problem on my home charger, i think it was the charger causing the issues. But sometimes the cars can just be temperamental.

 

[Englishtony2002]

There was a fault on the 22kw option that basically turned the car into a brick and meant the hardware needed changing. They fixed the software issue as part of the very big update.

So if you're car is still doing something/charging, it's probably not the killer 22kw unit that's the issue specifically.

When i've encountered similar problem on my home charger, i think it was the charger causing the issues. But sometimes the cars can just be temperamental.

Thanks

 

[W1NGE]

Power cycle the muther (EVSE)?

 

[V10tdi]

well joined the club mine packed up at the weekend booked into Glasgow Centre will be at least a month they told me heater matrix is on back order
At least they book me a enterprise car to keep me mobile

So the great news car is fixed already today so pretty quick response from Porsche Glasgow
Bad news I just tested positive and can’t collect it ?‍? so I get to keep my nice base model Audi a1 for a few more days

 

[feye]

Add the red electrical errors to the heater errors and they have their hands full with these repairs (red electrical is either bad HV Cell or the whole HV battery) and parts are a month to get here. Obviously not all affected, but the wait of month or more for parts is not acceptable. I have never had a car repair go more than 3 or 4 days at most (in warranty or not).

My car has been down since 1/21 waiting on the HV cell repair. Germany sent the wrong one (terminals reversed) on 2/22 so back to the waiting game. I had emailed the Porsche NA CEO when the problem occurred and filed a claim at Porsche NA. On my 5th representative as they keep moving it to another person. Hoping this one can get the process sped up which so far has not happened. Personally, I think they would rather buy back my car and make me go away as they quickly offer that option and I reject it. There are other options, fix and compensate me, flip me to another car in their inventory, or build me another one and take mine on trade.

Wow, I have the same problem. Car went to shop 2/26 with HV cell broken. Waiting for another 2 months for parts from Germany. Then they need 3 weeks to fix it. Gosh, if they get the wrong parts...

 

[G7SUM]

So the great news car is fixed already today so pretty quick response from Porsche Glasgow
Bad news I just tested positive and can’t collect it ?‍? so I get to keep my nice base model Audi a1 for a few more days

and you are still testing why?

 

[V10tdi]

and you are still testing why?

Was supposed to be in Germany this week and still need to test before I go to office

 

[G7SUM]

Was supposed to be in Germany this week and still need to test before I go to office

I was on a flight last week back from Heathrow. I'd say 20% of the plane were coughing and sneezing. So some companies still insisting on testing prior to entering the office?

 

[V10tdi]

I was on a flight last week back from Heathrow. I'd say 20% of the plane were coughing and sneezing. So some companies still insisting on testing prior to entering the office?

Yes exactly I was twice through Schipol last week same ? and we have rule still u must test before going to office in Germany when I go to uk office not the same

 

[PDACPA]

Wow, I have the same problem. Car went to shop 2/26 with HV cell broken. Waiting for another 2 months for parts from Germany. Then they need 3 weeks to fix it. Gosh, if they get the wrong parts...

The 3 weeks to fix when the part comes is because they have to fly a "FTM" (aka Flying Doctor) to do the actual repair (dealer will drop the battery). So they have no idea his availability. The actual repair is 3 days (probably battery drop, install part, put battery back) and then 2 days testing charging and draining.

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