Eco-mode
Instructor
Joined: Dec 2013
Posts: 248
Likes: 0
Eco mode is one of 5 driving modes all C7s have. they are Weather, Eco, Touring, Sport, and Track. It will go in 4 cyl on all roads when you are mostly coasting or holding a speed and not accelerating. At idle or when A6 put into neutral or in Park it is ALWAYS in 8cyl mode and stays there until a few seconds after you reach your desired speed and acceleration is mostly gone. It's a great feature and makes a great difference in the mpg. If you need to hear that great throaty sound ALL the time, as previously stated by others here, just keep it in TRACK mode.
Instructor
Joined: Nov 2011
Posts: 201
Likes: 16
From: Lawrenceville GA
In manual, you can feel a slight lurch if you are on a smooth road when it goes to V4 mode. It isn't a problem really.
When I ask for that V8 to get going again it is seamless. Of course it must be in ECO in a manual car like the rest of the forum has said. I am only putting it in ECO when I'm on the interstate in the paid lane. Basically if I find the need for cruise control then I might as well use ECO.
When I ask for that V8 to get going again it is seamless. Of course it must be in ECO in a manual car like the rest of the forum has said. I am only putting it in ECO when I'm on the interstate in the paid lane. Basically if I find the need for cruise control then I might as well use ECO.
Safety Car
Joined: Jan 2015
Posts: 3,941
Likes: 499
From: Northern Virginia
Melting Slicks
Joined: Mar 2013
Posts: 3,104
Likes: 626
From: Baton Rouge LA
I never noticed it until I turned off the stereo and concentrated on hearing or feeling it. I did sense it once or twice while really concentrating, but never in normal driving. If I didn't actually see it on the DIC I wouldn't notice it workiing at all, and fail to understand why some find it so irritating, as it does save a small amount of fuel in normal driving. As for NPP behavior, my exhaust is never open when in V4 mode, so I never get any weird sounds associated with the two operating together.
