s65 transmission noise
04-15-2017, 11:01 AM
#1
Newbie
Thread Starter
Join Date: Apr 2017
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
s65
s65 transmission noise
in my 2008 S 65 Ihave a soft ie low volume, high pitched transmission noise [ whine] in 3rd gear only, above 1500rpm.not present when car stationary. sounds similar to power steering pump whine but is not related to steering input. immediately stops when decelerating and shifting out of 3rd gear. gear shifts normal. no messages on dash.
Anyone with similar issue. Ideas please. Can't find anything on google search.
BTW i posted this under amg parts by mistake. newbie error. Sorry
Anyone with similar issue. Ideas please. Can't find anything on google search.
BTW i posted this under amg parts by mistake. newbie error. Sorry
05-07-2017, 04:07 PM
#2
Super Member
Join Date: Mar 2006
Location: Chicago
Posts: 514
Likes: 0
Received 0 Likes
on
0 Posts
CL65
Probably the pump on its way out. Not uncommon. You might want to do a transmission service and check to see if TCU (egs53) is working properly. I had them go bad on two different W221s.
05-07-2017, 11:03 PM
#3
Newbie
Thread Starter
Join Date: Apr 2017
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
s65
transmission noise
Thank you for your reply. It begs the question.
Would a pump failure cause a noise ONLY in 3rd gear.
I should add that I have also noticed a sporadic jerky acceleration in 1st gear from coming off the throttle and then rapidly back on at slow speed.
Your input is much appreciated.
Would a pump failure cause a noise ONLY in 3rd gear.
I should add that I have also noticed a sporadic jerky acceleration in 1st gear from coming off the throttle and then rapidly back on at slow speed.
Your input is much appreciated.
