Yellow ring on tach
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Instructor
Joined: Oct 2007
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Yellow ring on tach
Yesterday morning while leaving my house, I hit it pretty hard and noticed a yellow ring on my tach. Have not seen it before and do not recall reading anything in the manual about it. Does it signify cold tires or something?
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It signifies a cold engine. There is a partial ring that shows up when you start the engine and once the engine warms up, the ring disappears. When you hit it hard, it was telling you that the warm up ring was still lit and you were at a higher RPM than recommended until the engine warms up. 
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From: Chirper Island
It's a pretty cool feature.
The first time I saw it was the very next trip after the initial 500 miles, when the redline went up. I thought "Wait! I saw the redline normalize, so WTF?" Confused the heck out of me.
Now, it's a good reminder to take it easy in the morning. 
The first time I saw it was the very next trip after the initial 500 miles, when the redline went up. I thought "Wait! I saw the redline normalize, so WTF?" Confused the heck out of me.
Now, it's a good reminder to take it easy in the morning.
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Instructor
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Yea, I was a over 600 miles and I thought o dear, I have blown this thing up.
Drifting
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my m3 used to do that too ... def cool
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Thanks for the info. Pretty cool feature.
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Drifting
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Instructor
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Drifting
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From: Staten Island/NJ NY/NJ
yeah thats what it is meant to do... even if car is at idle it will change color until it goes away or at least thats what my M3 did. ITs preventative warning