goodoldfred
Member
- Joined
- Apr 26, 2015
- Messages
- 11
- Reaction score
- 1
- Location
- Lancashire
- Your Mercedes
- SL 350 AMG SPORT 2013
The ECO stop/start function on my 2 years old SL350 seems to work on a haphazard basis. Some days it comes on within a mile but on others I can drive 5 or 6 miles and I have even driven as much as 15 before it comes on. Even then it often switches off and on again without warning. I know several parameters have to be met before it will work (temperature/oil pressure/battery charge etc.) and it seems to activate more promptly after it's been run for 2 or 3 miles or so and then parked up for a little while. The dealership staff were baffled and replaced the battery which improved the situation for a couple of weeks or so but now it's as bad as ever and I want to make sure it can be fixed whilst still under warranty.