Porsche unable to engineer a reliable heater?

[Tooney]

@whitex

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[chun]

@whitex

A portable radiator, how innovative. Exactly what I had in my Dacia 2 decades ago.

Looking at the speed with which SAP improves also, maybe my expectations from the Germans in terms of innovation speed were too unreasonable

/s

 

[whitex]

@whitex

You may laugh, but I actually bought one for my trip home from picking up my car in the middle of winter Never used it, as the the heater luckily made the 3,500 mile trip home. I guess time to put it back in the car.

 

[whitex]

Given Porsche knows their supplier is incompetent, couldn't they just put in 3 of those in each Porsche EV, with automatic failover as they die. Then include replacement of dead units in regular scheduled maintenance.

 

[chun]

Given Porsche knows their supplier is incompetent, couldn't they just put in 3 of those in each Porsche EV, with automatic failover as they die. Then include replacement of dead units in regular scheduled maintenance.

Actually that’s what the supplier recommends if you look at their 800v HV heater
For busses though, but still

 

[Tooney]

You may laugh, but I actually bought one for my trip home from picking up my car in the middle of winter Never used it, as the the heater luckily made the 3,500 mile trip home. I guess time to put it back in the car.

I remember your 3500-mile trip in winter to pick up your new Taycan. Thought you might have been blissfully unaware of the cabin heater problem then.

 

[Solid]

When did engineering whack-a-mole become Porsche's design methodology?

Forever ago. Look at the common failures that Porsche never learns from or decides are not ever worth the cost of doing right. Plastic coolant pipes on 955 Cayenne's and the plastic T on the backside of the engine on the 955TT's failed all the time and they never stopped making custom injection molded plastic coolant pipes that failed on later models. They pressed-in coolant fittings on the 996 cars that would pop loose from heat cycling and kept doing it anyway. The crappy plastic coolant vent lines that always fail on 955 were carried forward a decade to the Macan, etc. All of them are cheaper ways to make the part than to do it right in metal. They last past the warranty period in most cases (955 coolant pipes are maybe an exception since they ended up redoing that one in aluminum so they must have had a financial reason for doing so). Porsche is also not exceptional in this way, every car has its thing(s)-that-breaks and every manufacturer has some kind of rinse and repeat bad design decision.

 

[pjg03d]

@whitex

Does it come with the fire/lava or do I have to purchase that separately, like a refillable cartridge kinda deal?

 

[daveo4EV]

When did engineering whack-a-mole become Porsche's design methodology?

since about 2014…

 

[f1eng]

I had a second recall to replace a still working (like the last one) heater module.
The fault I do have on my car with the heating has been no flow from vents which has now happened twice and reset itself but I don't really know how or why because nothing I tried to adjust worked then on both occasions it just went back to normal.
The first was in summer and it was just hot for a journey, the second was recently and the windows steamed up and it was cold.
It was back to normal again over the weekend.
I am not confident the service dept will be able to find an intermittent fault.

 

[Gadzoo]

My heater failed this morning. This will be the fifth new heater for my Taycan. And the car is not quite 6 years old. Not a great track record.
does anyone know what a new heater costs? I’m worried about what happens when my CPO warranty ends in June of 2026.

 

[ferdiaz]

My heater failed this morning. This will be the fifth new heater for my Taycan. And the car is not quite 6 years old. Not a great track record.
does anyone know what a new heater costs? I’m worried about what happens when my CPO warranty ends in June of 2026.

Come on, five units already? That has to qualify as a manufacturing design issue, and should be replaced with or without warranty. Five units is enough evidence that the whole design around that part is incorrect.

I'm sure a lawyer could make a case about it – for this reason, I have a legal representation insurance.

 

[tophamn]

Come on, five units already? That has to qualify as a manufacturing design issue, and should be replaced with or without warranty. Five units is enough evidence that the whole design around that part is incorrect.

I'm sure a lawyer could make a case about it – for this reason, I have a legal representation insurance.

Maybe it's not the heater itself which is at fault, but something connected to it which isn't changed during the recalls but is causing the next new heater to fail in the same way....

 

[Solid]

Maybe it's not the heater itself which is at fault, but something connected to it which isn't changed during the recalls but is causing the next new heater to fail in the same way....

That would be my read. It is not lost on me at all that the range at 100% on my 2020 went up by 24 miles after a failing regulator finally died completely and was replaced after the AC compressor could no longer start. I could tell it was dying by the fan noises as the car was trying to cool the dying unit. I was losing the equivalent of 24 miles of range generating heat from a dying VRM. These components can all stress each other.

 

[B61]

Looks i’m on the same boat…again
Today, i noticed that’s quite cold in the cabin…outside temp 10C, inside set to 22.
I set to 24….it started warming, but only on two places (far left and right), on central area still same cold.
If i recall correctly, they replaced heater in CT4 three times, now on my new S4 failed too

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