Were they all broken?
I just had mine replaced for the 2nd time, the part number on the invoice PAD-936-5070A. Not sure if they just use a standard part number on invoice or really gave my car the original heater version. Next time I dive into the frunk for something (might have a project coming up which will require it) I will check out the actual part number on the HV heater part itself.
Whatever you say, I am just telling you that my Porsche parts catalogue says it does not exist, and dealers use the same one.
If passenger side works it's not the HV heater that is dead, but most likely one or more servo motors driving cooling/heating system related valves. I recently had both the HV heater and a couple servo motors replaced when my heat died completely. It's possible the valves failed first and I just didn't notice until HV heater died.
I did wonder if it was one of the valves. Having seen pictures of the plumbing nightmare that is the Taycan HVAC, it's hugely complicated. Another weak point, to add to the rear view camera and the crazy charging nonsense. But I still love the car!
The "rats nest" of pipes in the Taycan was resolved within the first year of production (replaced by a single piece manifold, like Teslas), so only a real early adopter teething pain. From what I gathered, there must have been a bad batch of servo motors used in a few places of the Taycan HVAC. In my case, the air recirculation and front windshield defrost servo motors were replaced (same part number for both). The HV heater has been just a disaster though (my 2023 Taycan is on its 3rd one) - I really wish I could hear the inside story on this one sometime. Similar story on the 22kW OBC (on my second one, and I hear Porsche is telling people replacing it with half-performance 11kW OBC is just fine, because Porsche sees absolutely zero value in the option they sold to people).I did wonder if it was one of the valves. Having seen pictures of the plumbing nightmare that is the Taycan HVAC, it's hugely complicated. Another weak point, to add to the rear view camera and the crazy charging nonsense. But I still love the car!
Booked in for 2nd week Jan
Not ironic at all, the heater in the 964 is called an internal combustion engine, which generated plenty of surplus heat energy (majority of energy from gasoline it turned into heat, only a small part of it goes towards moving the car).
