SL55/63/65/R230 AMG: What is the normal RPMs at idle for a SL55?
05-07-2011, 03:33 PM
#3
Senior Member
Thread Starter
Thanks for the fast response.
With the car warmed up to operating temperature and with the trans in "park" it is at 625 RPM and it feels smooth and correct. However if I am out driving around and stop at a red light the car idles at 500 RPM and it does not feel smooth and can feel some vibration through the steering wheel. Why would it idle at a different speed with the car stationary in park vs out driving and stopping at a light? Anyone have any thoughts?
With the car warmed up to operating temperature and with the trans in "park" it is at 625 RPM and it feels smooth and correct. However if I am out driving around and stop at a red light the car idles at 500 RPM and it does not feel smooth and can feel some vibration through the steering wheel. Why would it idle at a different speed with the car stationary in park vs out driving and stopping at a light? Anyone have any thoughts?
05-08-2011, 10:56 AM
#4
My 2005 SL55 is at 550 RPM in Park. In Drive at a stop a little higher.
Like about 650 RPM. Mine was starting to be a little rough till I put fresh Plugs in it at 60K miles. Now smooth as silk again.
Like about 650 RPM. Mine was starting to be a little rough till I put fresh Plugs in it at 60K miles. Now smooth as silk again.
