320d diesel knocking - Injector? - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-26-2010, 02:15 PM   #1 (permalink)
n00b
 
jenksbaj's Avatar
 
Join Date: Apr 2010
Location: Pembrokeshire, Wales
Car: E46 330d Msport & E36 328i Cab
Posts: 5
Photos:
jenksbaj is on a distinguished road
320d diesel knocking - Injector?

Hi all, new to the site and plenty of good info...
I have trawled through all the E46 problem pages but cant quite put my finger on my problem and was hoping for a bit of help from someone with a bit of previous experience...
The Bmw is a 320d 2002 model with 130k with full service history.
I have a feeling that one of the injectors has faulted as there is a distint diesel knock. It seems to be coning from the bottom end which initially worried me as i thought it might have been really serious. I have taken the sump guard (belly cover) off and felt around the sump area and there are no obvious signs that it is in the bottom end...ie, pistons, crank etc.
I have now taken the engine covers off and held a screw driver handle to each of the injector top and you can definately feel the knocking through the one closest to the bulk head.
The knocking is all the time, not too bad on start up but you can hear it whilst driving and under load. The problem seemed to have occured on a motorway trip, i thought i would put some super diesel in and not long after the knocking just appeared, hasn't got better or worse in approx 200 miles of driving since but it is worrying me now as i have read loads of horror stories about new engines etc etc
Can anyone guide me in the right direction?
Thanks, Ben
jenksbaj is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 05-02-2010, 11:33 AM   #2 (permalink)
n00b
 
jenksbaj's Avatar
 
Join Date: Apr 2010
Location: Pembrokeshire, Wales
Car: E46 330d Msport & E36 328i Cab
Posts: 5
Photos:
jenksbaj is on a distinguished road
Bit of an update....
Purchased a reconditioned injector as i had diagnostics hooked up and injector 4 was reading completely different to the rest. Fitted the recon'd one today and it hasn't stopped any knocking....no worse, no better. So i thought i'd change number 3 over as well just incase and again no difference. While i had the inlet manifold off i thought i would take off the flaps that cause such problems if/when they snap off! One of them (at injector 4 location) was gone......does anyone think that this is what the knocking is?
Bare in mind i have driven it like this for approx 1000 miles and it's got no worse (the knocking) but fuel economy seems to have been affected and it doesn't feel as powerful as it was.
Any help at all would be hugely appreciated because my only option at the moment is to bring it to Bmw!!!
jenksbaj is offline   Reply With Quote
Old 05-05-2010, 04:15 PM   #3 (permalink)
n00b
 
jenksbaj's Avatar
 
Join Date: Apr 2010
Location: Pembrokeshire, Wales
Car: E46 330d Msport & E36 328i Cab
Posts: 5
Photos:
jenksbaj is on a distinguished road
Is there anyone who has experinced anything ANYTHING similar????
jenksbaj is offline   Reply With Quote
Old 12-05-2010, 01:13 AM   #4 (permalink)
n00b
 
Join Date: Dec 2010
Car:
Posts: 1
Photos:
uyssie23 is on a distinguished road
Im Having the same problem. ive olso been told its the injector. Did u find the fault. would appreciated any help
Thant u can mail me
uyssie@lantic.net
uyssie23 is offline   Reply With Quote
Old 12-24-2010, 06:53 AM   #5 (permalink)
n00b
 
Join Date: Dec 2010
Car:
Posts: 1
Photos:
Atul is on a distinguished road
Hi All,
I a new to this site. I have a E46 320D, 2002 FL model that has 142000 KM. I have DECAT the system and need to know if the CU needs to be remapped, or is there anything else needs to be done.

Regards
Atul is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)


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

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Knocking while accelerating urai4m 5-Series (E12,E28, E34, E39, E60) 5 04-26-2009 05:51 AM
knocking on idle zim zimma 3-Series (E36) 2 12-13-2008 08:08 AM
knocking sound ??????? 325IConvertible 3-Series (E36) 3 03-27-2007 08:05 PM
knocking SILVER 325 3-Series (E36) 6 04-20-2006 02:01 PM
Knocking Noise CaptainEL 5-Series (E12,E28, E34, E39, E60) 5 01-26-2004 09:22 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 01:41 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.