Not sure, I think it's up to the dealer and especially up to them to decide if it's a simple maintenance item or if it's part of fault tracing etc?
I was happy when they returned the car and stated they had replaced the battery under warranty because it failed the battery test.

 

How do you turn-off / disable the Eco feature besides turning to S or S+?

 

Sorry to say - but you are wrong on this one. There is absolutely more wear and tear on starter, battery, and engine mounts..
I agree that this is not an issue as long as you use the car as it was designed by the engineers - for about 4 years as a new car buyer in Germany. Problem is that we in the US keep our cars much longer than the Germans do....

 

You buy an ODB programming dongle on ebay. Search and you will find a few posts about it.

 

You should be able to just push the ECO button when in C mode and then the green light turns off and disables the ECO while driving in C. Although I just prefer switching to S or S+ mode which does the same thing to deactivate ECO.


OR I guess you could just let your rear battery die which is what powers the ECO functioning and that would permanently disable ECO while in C mode but the green light Will still stay on. That what happened to me for months before I realized the trunk battery was dead and dealer replaced under warranty and the ECO went back to normal functioning.

 

I’ve replaced both battery’s. Steelership said it was fuel pumps. Replaced still Not working. Fuel rail filters could be a culprit small filters in rails. Not the problem. Crank sensor not the problem. Could be a stretched timing chain but Ended up being a 60 dollar cam magnet. if it were to happen again start at Cam sensors / magnets and stay clear of the dealer on this they will soak ya. Find a good indy mine found it first shot and was in diss belief at how apparent it was

. QUOTE=jvakos;7748294]You should be able to just push the ECO button when in C mode and then the green light turns off and disables the ECO while driving in C. Although I just prefer switching to S or S+ mode which does the same thing to deactivate ECO.


OR I guess you could just let your rear battery die which is what powers the ECO functioning and that would permanently disable ECO while in C mode but the green light Will still stay on. That what happened to me for months before I realized the trunk battery was dead and dealer replaced under warranty and the ECO went back to normal functioning.[/QUOTE]