Eco mode acting up
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 350
Likes: 38
From: North East
07 TL, 05 350z, 08 MDX
Eco mode acting up
Hi guys. Wondering if anyone else has experienced this. When I drive my car and I’m coming to a stop sometimes the car will shutdown for a moment and the nav screen goes black. Then the car will turn back on and eco mode will be off. off. I cannot turn it (eco mode) back on unless I completely shut the car down and restart it. Is this a gremlin or a known issue? Thanks in advance.
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 350
Likes: 38
From: North East
07 TL, 05 350z, 08 MDX
I agree. I have been doing some research and believe the aux battery needs to be replaced. I checked w my friend who is an mb service advisor and he believes the same although I have not received any messages in the car saying aux battery needs to be replaced. I’m going to go ahead and order a replacement battery for $105 from mb parts world and replace it myself and hopefully that does the trick. I will post back in 2 weeks and let everyone know.
Junior Member
Joined: Mar 2019
Posts: 40
Likes: 13
Cls550 2016
Just turn it off when you get into the car. I have been doing this since I bought it back in April. I have no desire to turn it on or try to save gas. Maybe your eco start battery is bad or your starter. In the long term I think it will worn your starter a lot quicker than not using it. Just ask AMGBOY916. He replaced his starter at 60,000 miles. Hope that helps.
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 350
Likes: 38
From: North East
07 TL, 05 350z, 08 MDX
Thanks first class. I do turn it off when I remember. However sometimes I just get in the car and go. I don’t like driving the car knowing something isn’t working the way it’s supposed to so I can’t overlook it. I will try the aux battery and hope that fixes it. If it doesn’t then maybe I will upgrade as I have been getting the itch lately 
. Actually recently inquired about a Panamera GTS. If the cls, which has proven to be reliable and trouble free for 30k miles can stay healthy, then I will likely stick w it. If the gremlins start appearing then I will move on.
. Actually recently inquired about a Panamera GTS. If the cls, which has proven to be reliable and trouble free for 30k miles can stay healthy, then I will likely stick w it. If the gremlins start appearing then I will move on.
