05 E320 Cdi annoying idle vibration - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 06-02-2015, 10:38 AM Thread Starter
Junior Member
 
Join Date: Jun 2015
Vehicle: 2005 E320 Cdi
Location: Martinez, CA
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
05 E320 Cdi annoying idle vibration

Hi Folks,

I'm the 'new' owner of a 2005 E320 cdi with only 81k on the clock, the car had some things wrong with it when I bought it and I've been going through and fixing them, so far I've done:

air filter
oil and oil filter change
diff oil change
new engine mounts
new transmission mount
new thermostat


The problem I'm having right now is the engine has a bad vibration at idle, in drive, park or neutral it makes no difference, it has all new mounts so I don't think its that. I took it to the local mercedes benz dealership here (before I did the transmission mount) and they told me it was the trans mount that was shot and was causing it.
However after putting a new mount on the vibration is still there.

It also has quite a big kick, when I switch the engine off.

I did some googling and the best explanation is either the alternator pulley is bad (it has some kind of damper or clutch in it?) or one of the fuel injectors is bad and at idle is injecting just the wrong amount of fuel, causing the vibration.
It does need a new serpentine belt, so I'll get that done and check the alternator pulley when I change it.

Can anyone help? If I knew the benz dealer could fix it I would take it back, but they seemed more interested in billing me for other things and washing my car than actually fixing the thing I brought it in for.

Thanks

Chris
bart_dood is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 06-03-2015, 05:47 AM
R.I.P Always Remembered
 
eric242340's Avatar
 
Join Date: Jun 2009
Vehicle: Zotye 1.5T 2016 model
Location: Sichuan province China
Posts: 1,870
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 85 Post(s)
Well the basics and normal culprits have been covered so I would guess it is time to have the fuel injectors tested.

https://www.google.com/url?q=http://...sXHG3AYyWBfS6g

ERIC
eric242340 is offline  
post #3 of 5 Old 09-15-2015, 09:35 AM
Junior Member
 
Join Date: Sep 2015
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by bart_dood View Post
Hi Folks,

I'm the 'new' owner of a 2005 E320 cdi with only 81k on the clock, the car had some things wrong with it when I bought it and I've been going through and fixing them, so far I've done:

air filter
oil and oil filter change
diff oil change
new engine mounts
new transmission mount
new thermostat


The problem I'm having right now is the engine has a bad vibration at idle, in drive, park or neutral it makes no difference, it has all new mounts so I don't think its that. I took it to the local mercedes benz dealership here (before I did the transmission mount) and they told me it was the trans mount that was shot and was causing it.
However after putting a new mount on the vibration is still there.

It also has quite a big kick, when I switch the engine off.

I did some googling and the best explanation is either the alternator pulley is bad (it has some kind of damper or clutch in it?) or one of the fuel injectors is bad and at idle is injecting just the wrong amount of fuel, causing the vibration.
It does need a new serpentine belt, so I'll get that done and check the alternator pulley when I change it.

Can anyone help? If I knew the benz dealer could fix it I would take it back, but they seemed more interested in billing me for other things and washing my car than actually fixing the thing I brought it in for.

Thanks

Chris
post interesting. i like it
linda1 is offline  
 
post #4 of 5 Old 07-04-2019, 10:14 PM
Junior Member
 
brbhan's Avatar
 
Join Date: Aug 2008
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Chris: at 81 Kmi the car should be almost new and should not have needed eng/tranny mounts unless tampered with by an inexperienced mech - or I strongly recommend you locate a qualified dealership where they might find the fuel pump to be out-of-spec - a.k.a. a timing problem. This engine runs extremely smooth. Shut-off, likewise, is smooth/uneventful.

The CDI 648.961 engine is equipped with a sensitive diesel emissions system located on firewall. To safeguard it is imperative that you use Mobil 1 ESP Formula M 05-W40 MB-Approval (updated March 2017) 229.52. Repeat: Key words are ESP and 229.52!!
brbhan is offline  
post #5 of 5 Old 07-05-2019, 09:16 AM
Administrator
 
Join Date: Dec 2016
Vehicle: 1999 ML430, 2000 ML320, 2005 E500 4matic wagon
Location: Wisconsin
Posts: 100
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
I also agree it is probably a fuel delivery issue. Injector delivery rates can easily be checked. If they get too far out of whack the idle can get lumpy and MPGs can suffer.
Noodles is offline  
Sponsored Links
Advertisement
 
Reply

  Mercedes-Benz Forum > Mercedes-Benz Enthusiasts Forums > Diesel Discussion


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
Thread Thread Starter Forum Replies Last Post
E320 Cdi Oil and fuelfilter Disally Diesel Discussion 3 07-04-2019 10:37 PM
idle has vibration hayakz DIY/Tech Help 1 04-16-2007 10:51 PM
E320 CDI 2005 tire suggestions? jre320cdi General Mercedes-Benz 1 02-16-2006 07:07 AM
2005 E320 CDI - No Parktronic-help? jre320cdi Mercedes-Benz Sedans/Wagons 0 01-29-2006 12:11 PM
problem with vibration on 97 E320... 97e320 DIY/Tech Help 0 07-31-2003 11:29 PM

Posting Rules  
You may not post new threads
You may not 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

 
For the best viewing experience please update your browser to Google Chrome