C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

Engine noise-Whining--2011 C300

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 09-26-2017, 09:36 AM
  #1  
Newbie
Thread Starter
 
Throwaway7777's Avatar
 
Join Date: Sep 2017
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
C300
Engine noise-Whining--2011 C300

I've got a weird noise I'm trying to isolate. The noise sounds like what you would expect from a failing power-steering pump, its a mid to high pitched whine like a failing bearing. It sounds like the whine is coming from the passenger side in the area of the oil filler/timing chain gear. The sound increase with engine RPM. It may also be coincidental but the check engine light came on around the same time as the sound started. It also feels like whatever is causing the noise is bogging down the engine a bit like I'm pulling something or have the car loaded. Scratching my head at the moment. Has anyone else had a similar issue?
Old 09-27-2017, 05:26 PM
  #2  
Junior Member
 
Neokiller309's Avatar
 
Join Date: Apr 2015
Posts: 21
Likes: 0
Received 0 Likes on 0 Posts
2009 C300 Luxury
Try turning your A/C off and see if the problem goes away. The AC pulley tends to whine in the pre-facelift models, and the sound matches what you are describing.
Old 09-27-2017, 09:30 PM
  #3  
Super Member

 
tekfoc's Avatar
 
Join Date: Sep 2014
Location: NYC
Posts: 822
Received 102 Likes on 90 Posts
18 E63S
Mine wines slightly with ac on only and it's a 12
With facelift but with the good oo non direct injection engine .
I figure I throw that in their for angrypinguen. Lol
The following users liked this post:
superangrypenguin (09-28-2017)
Old 09-28-2017, 06:38 AM
  #4  
MBWorld Fanatic!
 
superangrypenguin's Avatar
 
Join Date: Jun 2011
Location: Canada
Posts: 2,356
Received 242 Likes on 202 Posts
A car
Originally Posted by tekfoc
Mine wines slightly with ac on only and it's a 12
With facelift but with the good oo non direct injection engine .
I figure I throw that in their for angrypinguen. Lol


Yeah, mine whines slightly too, nothing weird - it's been like that forever.

Would be helpful for the OP is he/she takes a video.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Engine noise-Whining--2011 C300



All times are GMT -4. The time now is 03:48 PM.