[Bsullivan]

Got a question for the group. Recently on a fairly long rode trip, about 5300 miles, I noticed a peculiar vibration in the steering wheel immediately upon and for a few minutes after a cold start. The steering wheel seemed to have a high frequency vibration, almost a buzz that was very noticeable. The vibration went away within a few minutes of start.

Has anyone noticed a similar event in their GLCs?

 

[Klass]

Typically, If I can remember correctly, all of my vehicles have done that as when you're on cold start, the rpms are maintaining a higher than idle scenario and that'll give you a slight frequency vibration. Crank is dipping through thicker oil so the resistance alone could be giving you that.

 

[Bsullivan]

Understand the oil being thicker part, but higher RPM apparently doesn't matter. Once the vibration goes away, it does not reappear even at over 80 MPH or in RPM 1900. I believe our steering is electric, is it not? I wonder if whatever powers steering vibrates when cold.