Intermittent hard or no start on 4.0T S6 S7 RS7- possibly solved

[Hofahome]

There is also this 4.0T TSB 204672/4 Oct2017, hard to start, no codes.

Fuck that would have been helpful a month ago to me. But thx for posting here for others.


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[brad281]

Fuck that would have been helpful a month ago to me. But thx for posting here for others.


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Any update? Did the injectors solve the starting issue?

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[Hofahome]

Any update? Did the injectors solve the starting issue?

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Seems good so far but I have only had my car back for a few days. There was a side issue of a bad vacuum solenoid and the warranty company dragged their feet on approving it.


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[russjameson]

has anyone learned any more on the no starts? It is getting annoying, and all the dealer wants to do is poke at it, but on my dime. and homey aint playin that with no warranty.

[brad281]

has anyone learned any more on the no starts? It is getting annoying, and all the dealer wants to do is poke at it, but on my dime. and homey aint playin that with no warranty.

I just had mine in for upgraded turbos, PCV and some other maintenance. They replaced my plugs and didnt see any fouling on the plugs, so he didn't think I had an injector issue. Leaning towards HPFP, which is a significantly cheaper repair. It hasn't done the hard start since I've had it back, so I'm not sure if it was turbo related, but I doubt it.

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