Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 3 Series > E46 (1998 - 2005)
User Name
Password


Welcome to Maxbimmer.com!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-06-2014, 02:02 PM   #1
andylourenco
1st Gear Newbie
 
Join Date: Dec 2013
Location: Hamilton
Posts: 7
2005 BMW E46 M3 clicking sound problems

my cars making a loud clicking sound from the engine don't know what it is mechanic says i possible need a new engine because the sound is coming from the bottom end. any help would be appreciated. engine has 96,000 kms. heres a video i found on youtube sound very similar probably a little louder. thanks
https://www.youtube.com/watch?v=OfDs8zQ2BZo
andylourenco is offline   Reply With Quote
Old 07-07-2014, 01:18 AM   #2
jabela
4th Gear Member
 
Join Date: Apr 2007
Location: Toronto, ON, Canada
Posts: 749
Have you done proper valve adjustments recently?
A vid of your car would help.
__________________

2002 E46 325ci // 5spd // ISC N1 Coilovers
www.modernapothecary.ca
jabela is online now   Reply With Quote
Old 07-07-2014, 09:20 AM   #3
rmanaudio
3rd Gear Member
 
Join Date: Apr 2005
Location: Vaughan
Posts: 336
LOL...new engine? Really? Take it to a real BMW mechanic and get a second opinion.

You have pretty low kms to have anything major wrong with it. Unless maybe the ROD bearing recall was not done (if your car is 2003 or older).

Could need a valve adjustment like jabela said. Or could be something simpler (pulley related, pump related).

The video sounds like knocking but it could be just knock sensor is not working and timing is retarded or advanced. A BMW mechanic would be able to give you a better idea. Saying you need a new S54 motor is just crazy. The engine is the most expensive thing on e46 M3.
rmanaudio is offline   Reply With Quote
Old 07-07-2014, 02:10 PM   #4
andylourenco
1st Gear Newbie
 
Join Date: Dec 2013
Location: Hamilton
Posts: 7
I got a valve adjustment still same noise there going to drop the oil pan to check things out.
andylourenco is offline   Reply With Quote
Old 07-08-2014, 11:17 AM   #5
rmanaudio
3rd Gear Member
 
Join Date: Apr 2005
Location: Vaughan
Posts: 336
Do a compression test if you can also. Let us know what you find.
rmanaudio is offline   Reply With Quote
Old 07-08-2014, 12:19 PM   #6
jkho
1st Gear Newbie
 
Join Date: Jul 2004
Location: Barrie
Posts: 37
It could be loose hub bolts on the cam. My car sounded like that until the bolts were tightened up. But if your mechanic said it's coming from the bottom end, it could be the bearings.
jkho is offline   Reply With Quote
Old 07-08-2014, 01:40 PM   #7
andylourenco
1st Gear Newbie
 
Join Date: Dec 2013
Location: Hamilton
Posts: 7
Finding fine metal shavings in oil
andylourenco is offline   Reply With Quote
Old 07-08-2014, 04:05 PM   #8
rmanaudio
3rd Gear Member
 
Join Date: Apr 2005
Location: Vaughan
Posts: 336
I would send your oil to get it analyzed. Find out what your Lead ppm is. If it is high you have eaten away at your rod bearings which will lead to high iron, copper, tin, etc.

Hard to image rod bearings with such low kms unless you track or beat the crap out of your S54 engine.
rmanaudio is offline   Reply With Quote
Old 07-10-2014, 05:16 PM   #9
twboy1999
5th Gear Member
 
Join Date: May 2003
Location: toronto
Posts: 1,022
if is e46 m3, iam sorry to tell you, most likely your vano tab has broken off or vanos bolts broken off
this is serious matter, you should get it fix asap

finger cross is not vanos tab
__________________
1997 honda accord
twboy1999 is offline   Reply With Quote
Old 07-12-2014, 08:29 AM   #10
Mike_G
1st Gear Newbie
 
Join Date: Apr 2014
Location: Windsor
Posts: 8
any updates?
Mike_G is offline   Reply With Quote
Old 07-12-2014, 09:47 AM   #11
andylourenco
1st Gear Newbie
 
Join Date: Dec 2013
Location: Hamilton
Posts: 7
rod bearings needed to be replaced
andylourenco is offline   Reply With Quote
Old 07-13-2014, 03:13 PM   #12
twboy1999
5th Gear Member
 
Join Date: May 2003
Location: toronto
Posts: 1,022
How much is, that gonna cost
__________________
1997 honda accord
twboy1999 is offline   Reply With Quote
Old 07-13-2014, 06:37 PM   #13
2bmwguy
M5 EATER
 
2bmwguy's Avatar
 
Join Date: Jan 2012
Location: oakville
Posts: 710
Same thing happened to me we thought if was the rod bearings replaced them ..then we started it up and the same knock noise was there..we found out it was the piston pin on #6
But...The bearing on #6 cly was really bad too. I end up buying another block with 70k on it after all that.!!. 4k later.
__________________
.
2bmwguy is offline   Reply With Quote
Old 07-14-2014, 10:30 AM   #14
rmanaudio
3rd Gear Member
 
Join Date: Apr 2005
Location: Vaughan
Posts: 336
Quote:
Originally Posted by twboy1999 View Post
if is e46 m3, iam sorry to tell you, most likely your vano tab has broken off or vanos bolts broken off
this is serious matter, you should get it fix asap

finger cross is not vanos tab
Where you come up with this stuff? Exhaust Hub tab breaking off will not make that noise. If the tabs break, you might get codes or your engine will be dead (if tabs end up in chain and causing damage to timing). Most of the time you wont even know till you open it up or drop the pan.

The noise he has is piston movement related. So it could be rod bearings or piston related.

Last edited by rmanaudio; 07-14-2014 at 11:08 AM.
rmanaudio is offline   Reply With Quote
Old 07-14-2014, 11:29 AM   #15
ac_2007
Cruising in Top Gear
 
ac_2007's Avatar
 
Join Date: Aug 2011
Location: Toronto, ON
Posts: 642
Quote:
Originally Posted by 2bmwguy View Post
Same thing happened to me we thought if was the rod bearings replaced them ..then we started it up and the same knock noise was there..we found out it was the piston pin on #6
But...The bearing on #6 cly was really bad too. I end up buying another block with 70k on it after all that.!!. 4k later.
Welcome back!

How was your vacation?
__________________
ac_2007 is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump


All times are GMT -4. The time now is 08:37 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.