R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Noise when I change gears, is this normal?

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Old 11-05-2010, 05:53 PM
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R350
Noise when I change gears, is this normal?

I was at a stop today (with no radio on) and decided to shift to P, there was a little grind sound. I decided to shift to R, same noise; D, same noise.
My son asked if I was ready to take it back and get my Mazda...not yet.

When I arrived home I decided to do another test. It did make a noise, but not the same intensity. It now sounds more like a robotic transition hum.
Is this something I need to be worried about or am I just being paranoid?

Thank you for your help. SP
Old 11-05-2010, 06:07 PM
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2011 GL450, '06 R500 traded, '08 ML350 sold
Both my R500 and ML350 make similar "robotic" noise. So I'd say its normal.
Old 11-06-2010, 03:10 PM
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'07 GL320CDI, '10 CL550
It's normal.

Your little bitty movement of the shift control obviously does not move the gears in the transmission, and this is accomplished by an electric solenoid.
Old 11-06-2010, 06:13 PM
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AMG R63 MY2012
In Italy all R in Mercedes Forum have this "robotic" noise ...
It's normal..
Old 11-20-2010, 01:49 PM
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I've always had this grind noise. For the first couple of months I would take it to the dealer to check and see if there was anything wrong, nadda. Now over 70k miles and still making the same sound, but running strong.
Old 11-20-2010, 01:57 PM
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Every MB with the steering-column mounted gear shifter will make that noise.

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