bwdream1974

hello
This is a 2007 w221 s550 gasoline vehicle.
The following warning lights come on from time to time
No sensor error in diagnosis
Responds well to cooling fan output %
I replaced the thermostat
No abnormal coolant level
If anyone has experience or knows the cause, I'd love to share

Shadly1

Maybe corrosion in the coolant temperature sensor connector. If you dig deep enough to look at it, you might as well replace it. It's only $20.

What's that other dash light? The one above your MPH. Is that Distronic? I don't have it so I've never seen the indicator.

BOTUS

its a graphic - not a light - he has a beep enabled, that detects if you aren't paying attention - its an additional feature with Distronic Plus - linked to BAS Plus (brake assist) - in today's world it like "city safety" but Merc forgot to put the brakes on - but if you instigate it brings a lively response to slowing down