s55 AMG Engine whine (01) and getting power? - Mercedes-Benz Forum

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 11-14-2009, 09:42 AM Thread Starter
BenzWorld Member
 
Date registered: Nov 2009
Vehicle: 2001 S55 AMG
Location: Westchester New York
Posts: 68
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
s55 AMG Engine whine (01) and getting power?

I have a 2001 S55 AMG - that's the NA 349HP engine with no supercharger.

First question. Under full acceleration, there is the obvious V8 rumble but also a high pitched engine whine - almost like the sound of a supercharger if it had one. Is this normal for this engine? Or is there something wrong, like a belt, pulley, etc? It's only certain times under full acceleration that it happens.

Second question: I've noticed that depending where on the RPM's and powerband the car is in, it will give me more thrust and power response. How do I know exactly when this is? Sometimes I will accelerate and the response won't give me that push back/kickdown feeling - but it was like this in my C class that I had before too, so I think it's a matter of hitting it in the sweet spot/powerband to get that thrust.

Is there a rule or a way I can know to hit it right? Obviously it doesn't have that full power across all RPM's, but how do I get it in the sweet spot and know what I am doing and not just mindless doing it?

Thanks!
crashtest is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 11-14-2009, 09:46 AM
BenzWorld Elite
 
Kajtek1's Avatar
 
Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6l
Location: CA Bay Area
Posts: 31,774
Mentioned: 9 Post(s)
Quoted: 1123 Post(s)
I had the engine in ML and don't recall any whine.
To better understand engine power curve find diagram with HP and torque rating.
This is high revolution engine, so low end power is not the most impressing, although with huge output still pretty adequate for average driver.
The best performance usually happens between peak torque rpms and peak HP rpms.
Found in Wikipedie "Output is 342 hp (255 kW) to 367 hp (255 kW to 270 kW) at 5500 rpm with 382 ft·lbf (518 N·m) to 391 ft·lbf (510 Nm - 530 Nm) of torque at 2800-5400 rpm."
Meaning the best performance is between 2800 and 5500 rpm.

Last edited by Kajtek1; 11-14-2009 at 09:51 AM.
Kajtek1 is online now  
post #3 of 4 (permalink) Old 11-14-2009, 09:50 AM Thread Starter
BenzWorld Member
 
Date registered: Nov 2009
Vehicle: 2001 S55 AMG
Location: Westchester New York
Posts: 68
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
Thanks. The engine is fairly silent, and usually with even decent acceleration I just hear the V8 rumble - but sometimes when I really kick it down hard and the car goes, I do hear that higher pitched whine - maybe it's just how this particular engine sounds.

Also another question - getting the safety inspection/state inspection for this car was a pain - there were always 2 monitors on, and only after driving a lot did they go off. Is that normal for cars like this?
crashtest is offline  
post #4 of 4 (permalink) Old 11-14-2009, 09:55 AM
BenzWorld Elite
 
Kajtek1's Avatar
 
Date registered: Dec 2005
Vehicle: W211 E320 Bluetec R129 SL500 - $1300 car ........ Ford F350 6l
Location: CA Bay Area
Posts: 31,774
Mentioned: 9 Post(s)
Quoted: 1123 Post(s)
He.. he... no safety inspections in California
We do have smog inspections on gassers, but none of my European cars ever had a problem to pass them.
Chevrolet on the other hand always cost at least $200 in repairs to pass.
Kajtek1 is online now  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
     
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode



    Similar Threads
    Topic Author Forum Replies Last Post
    S55 AMG Engine whine (01) and getting power? crashtest W220 S-Class 4 11-18-2009 09:47 PM
    06 ml350 power steering whine ml350/06 W164 M-Class 9 07-24-2009 10:22 PM
    C280 Power Steering Whine shekarg W202 C36 AMG, C43 AMG 0 06-14-2009 12:13 PM
    Getting Rid of the Power Steering Whine.. AC_ML W163 M-Class 3 12-06-2007 09:15 PM
    Power Steering Whine snowbilt R129 SL-Class 7 02-13-2006 03:55 PM

    Posting Rules  
    You may post new threads
    You may post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are On
    Pingbacks are On
    Refbacks are On

     

    Title goes here

    close
    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome