ml 270 cdi engine pulley has developed a squeak - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 08-08-2010, 07:24 AM
BenzWorld Newbie
 
Date registered: Aug 2010
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
ml 270 cdi engine pulley has developed a squeak

Hi all i'm new to this forum and just like some tech help


My problem is that i own and drive a merc ml 270 cdi i have owned and enjoyed driving the motor for 3 happy months but this morning i came to the car and started it and heard an unusaul noise coming from under the bonnet.

Now i'm no mechania but do have a little knowledge about cars.
The noise its self is an intermittent squeal/squeak coming from one of the engine pulleys at the front of the engine? is this an easy fix or am I in trouble(should i stop driving it?) Its on of the pulleys at the top of the engine in the middle of the top three group of pulleys Any help would be grate fully appreciated thanks again scott ps it isnt the belt its more of a bearing dry bearing type squeal!
ml270cdi_scottyB is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 08-08-2010, 08:02 AM
BenzWorld Elite
 
Date registered: Aug 2006
Vehicle: 02 ML320
Location: Bronx, New York
Posts: 10,968
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Quote:
Originally Posted by ml270cdi_scottyB View Post
Hi all i'm new to this forum and just like some tech help


My problem is that i own and drive a merc ml 270 cdi i have owned and enjoyed driving the motor for 3 happy months but this morning i came to the car and started it and heard an unusaul noise coming from under the bonnet.

Now i'm no mechania but do have a little knowledge about cars.
The noise its self is an intermittent squeal/squeak coming from one of the engine pulleys at the front of the engine? is this an easy fix or am I in trouble(should i stop driving it?) Its on of the pulleys at the top of the engine in the middle of the top three group of pulleys Any help would be grate fully appreciated thanks again scott ps it isnt the belt its more of a bearing dry bearing type squeal!
You will have to remove the serpentine belt to determine which pulley is at fault, but in all probability it will be either the tensioner or idler pulley. After the belt is off a spinning by hand will determine which one it is.

Also while you have the belt off, you mind as well change it .
Attached Files
File Type: pdf Belt Layout.pdf (657.0 KB, 263 views)
43sqd is offline  
#3 (permalink) Old 08-08-2010, 08:02 AM
BenzWorld Elite
 
boardboy330's Avatar
 
Date registered: Mar 2008
Vehicle: 2000 ML320
Location: Scott AFB-IL
Posts: 2,906
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Send a message via AIM to boardboy330 Send a message via Yahoo to boardboy330
Depends on which pully. On gas models...the idler and tension pulley were often replaced...and the harmonic balancer was also an issue. HB was about $200...Idler is $20-30...tensioner is $120 or so. Belts are $30. Can you post videos or a diagram?

"I'd rather peel off my skin and bathe my weeping raw flesh in a bath of vinegar than spend any time with you. But that's just my opinion. Don't take it personally."

(\__/)
(o.O )
(> < ) This is Bunny. Copy Bunny into your signature to help him on his way to world domination

2000 ML320
boardboy330 is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > W163 M-Class

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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

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
finding engine number ML 270 CDI pleun General Mercedes-Benz 1 02-10-2009 02:40 AM
SUITABLE ENGINE OIL 2001 E 270 CDI scotland W210 E-Class 3 12-06-2008 08:28 AM
270 CDI Engine longfellowclk W209 CLK Class 1 06-04-2008 05:34 AM
US 270 CDI Conversion Using Sprinter Engine ez rhino G-Class 20 05-27-2008 03:40 PM
A squeak has developed, which is coming from the real... Tom (Vancouver) R170 SLK Class 8 09-24-2002 09:33 AM

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