Porsche dealership reset my check engine light without fixing anything

[lemetier]

Originally Posted by Kolyan2k

Well i had no choice but to pick up the car. Its hard to argue when dealer says we can't diagnose the fault because we already reset ECU even though they know exactly what need to be replaced.....Will have to wait till it comes up again and I am sure it will but could take months with covid in place. Some weeks I only drive once or twice

Filling up the DPF and not following the Regeneration requirements huh?

[Kolyan2k]

Originally Posted by lemetier

Filling up the DPF and not following the Regeneration requirements huh?

I think for regeneration there is a separate indicator, mine is just almost dead

[rwheels]

Guys, not to hijack this thread, but an article caught my attention about removing the headlights on a Porsche. Here are some thieves removing them from a Cayenne. Is it really this easy?

[Kolyan2k]

Yes its easy, not an issue in my neighborhood in some countries they have locks which prevent stealing

[UPSROD]

Originally Posted by Kolyan2k

Funny story, brought the car to dealership with check engine light that was an emissions issue. Dealer reset the light and told me to pick up the car. I called Porsche of America to complain, they said there is nothing they can do because there is no light so there is nothing to diagnose. WTF? What kind of service is this lol

Those check engine lights have been around for 40+ years tripped by mileage intervals, causing you to panic and take your car to the dealer. An honest dealer(hahaha) will reset it and you are good for another 15000 miles or whatever it trips at. A normal dealer will find all kinds of things to charge you for and that light is what got you in the door. If pushed into a corner the real purpose of the light is a reminder to inspect and clean or replace the EGR valve.

[lemetier]

Originally Posted by Kolyan2k

I think for regeneration there is a separate indicator, mine is just almost dead

Depends. If it's more than 55% full and never driven adequately to provide 2 half cycles or 1 full cycle, MIL becomes the main indicator. 75% and still no operator allowed regen = MIL and limp mode.

The service procedure is to force a partial regen, reset the counter, and inform the client. 3 repeat cycles is all you can get. 4th trigger (95% capacity) cannot do even an emergency diagnostic regen. Warranty will not cover a DPF replacement caused by misuse.

[Kolyan2k]

Originally Posted by lemetier

Depends. If it's more than 55% full and never driven adequately to provide 2 half cycles or 1 full cycle, MIL becomes the main indicator. 75% and still no operator allowed regen = MIL and limp mode.

The service procedure is to force a partial regen, reset the counter, and inform the client. 3 repeat cycles is all you can get. 4th trigger (95% capacity) cannot do even an emergency diagnostic regen. Warranty will not cover a DPF replacement caused by misuse.

Well I had code come up 3 times now. I also drive mostly highway. It should be covered under dieselgate warranty upto 120k miles. Dealer said they will replace if code comes back the 4th time. For some reason they kinda ignore the previous 2 times I had the same code, saying its the 1st time and before I had different issues

[Kolyan2k]

ECU light back on, car back to the shop to get part replaced. Its like $3-4k worth of parts and labor. More if they end up replacing some sensors too.