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Gears slipping and jumping into limp mode, code P2704

Tiny
DANC93
  • MEMBER
  • 2008 AUDI A6
  • 4.2L
  • V8
  • 4WD
  • AUTOMATIC
  • 91,331 MILES
When I've been driving my car long enough for the engine and transmission to heat up, I start having issues. The gears start slipping, primarily only from fourth to fifth, but sometimes other gears. And when I'm in either fifth or sixth gear and I accelerate hard or go uphill and have to accelerate, the car will make a whining noise and jump into limp mode. I'm getting a transmission code : P2704 Transmission friction element E Apply time range / performance. Do I just need a fluid / filter change? Or is this another problem?
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Sunday, September 29th, 2019 AT 7:50 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,861 POSTS
Hello,

I would do a service first to help the friction issue. Here is a guide to help walk you though the steps with diagrams below to help you with your car. Also once the service is complete clear the codes

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

and

https://youtu.be/ahK_eucFi-k

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Tuesday, October 1st, 2019 AT 1:04 PM

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