loud rattle from engine when I start up - BMW 3-Series (E90 E92) Forum

Bobo · 11-12-2005, 03:12 PM

320 d se
garage can't find anything wrong
any suggestions

David325Australia · 11-12-2005, 10:23 PM

garage or dealers service techs?

joony79 · 11-12-2005, 11:10 PM

I think it's because your car is BMW? maybe? I mean if it's your first BMW I had the same impression about the engine... but it's just because it's BMW... and there is nothing wrong with it... I guess you got your car not long ago because mine did the same thing at first and it was reduced after a while and now it's just like... I have to hear that sound of mine everyday.

coreslogic · 11-12-2005, 11:20 PM

describe loud rattle, does the rpm stay at between 1k-2k. because if that is the issue, it does that everytime it starts my car either

Dante · 11-15-2005, 06:46 AM

Does the rattle fade away after 2 seconds and only appear after having the car parked a few hours (e.g. overnight)?

Then its the self-adjustment of the valves. (sorry for bad description) It works hydraulic and has to fill up with oil after not running the engine for hours.

Thats normal, I experience the same on my 325ti, especially if its cold outside. Bit annoying though.

Hope that helped you

kimchi · 10-06-2006, 06:45 AM

Hmmm... seems this may be a common affliction. I have a 2 month old E90 (325i Sport) 3.0 gas six (US Spec) and I am experiencing a rattle from the engine. It started last week, and has only occurred 3 times... and ONLY when it is cool (less than 10C) and damp outside and only if it has not been running for a while. It will usually go away after letting it run for a few moments and/or driving a couple of kilometers. It rattles no matter the revs of the engine, but there is no discernible performance issue or anything other than its just noisy.

I took it to the shop and they said everything was OK with the car. They asked me to bring it in when I noticed it again, but as mentioned above it goes away after a few moments. So alas, I doubt I can get the mechanic to witness the problem unless I could convince them to keep the car overnight.

What I am gathering from this thread, is that I am not alone in this problem and that my initial suspicions are correct - the problem is related to hydraulics for the valves and lifters.

A long time ago I had an old 1980 AMC Eagle that had a straight 6 and it had exactly the same problem from the day the car was new. There wasn't anything wrong - it was just noisy valves and lifters. Maybe this is just an inherent issue with inline 6 cylinder engines.

I am interested in comments

from others who might be experiencing this issue - hopefully it is just an anomoly. Thanks in advance.

Bryan "Kimchi"

11-12-2005, 03:12 PM	#1
Bobo New Member Drives: 320 D SE E90 Join Date: Jun 2005 Location: N Ireland Posts: 26 iTrader: (0)	loud rattle from engine when I start up 320 d se garage can't find anything wrong any suggestions
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11-12-2005, 10:23 PM	#2
David325Australia Lieutenant Colonel Drives: E90 325i 6sp Auto Join Date: Jun 2005 Location: Melbourne Australia Posts: 1,949 iTrader: (0)	garage or dealers service techs? __________________ Jet Black E90 325i Step, heated black leather seats, dark wood trim, sports suspension, 17" 161 style mixed tyres, sun roof, sports steering wheel, logic 7, business nav. BMS Power Box set to Map 3.

11-12-2005, 11:20 PM	#4
coreslogic Captain Drives: e90 325i Join Date: Aug 2005 Location: Toronto, Canada Posts: 741 iTrader: (0) Garage List 2006 e90 325i [0.00]	describe loud rattle, does the rpm stay at between 1k-2k. because if that is the issue, it does that everytime it starts my car either __________________ e90 325i Jet Black / Sports Pkg / Auto

10-06-2006, 06:45 AM	#6
kimchi New Member Drives: E90 325i Sport Join Date: Oct 2006 Location: Bavaria Posts: 1 iTrader: (0)	Engine Rattle Hmmm... seems this may be a common affliction. I have a 2 month old E90 (325i Sport) 3.0 gas six (US Spec) and I am experiencing a rattle from the engine. It started last week, and has only occurred 3 times... and ONLY when it is cool (less than 10C) and damp outside and only if it has not been running for a while. It will usually go away after letting it run for a few moments and/or driving a couple of kilometers. It rattles no matter the revs of the engine, but there is no discernible performance issue or anything other than its just noisy. I took it to the shop and they said everything was OK with the car. They asked me to bring it in when I noticed it again, but as mentioned above it goes away after a few moments. So alas, I doubt I can get the mechanic to witness the problem unless I could convince them to keep the car overnight. What I am gathering from this thread, is that I am not alone in this problem and that my initial suspicions are correct - the problem is related to hydraulics for the valves and lifters. A long time ago I had an old 1980 AMC Eagle that had a straight 6 and it had exactly the same problem from the day the car was new. There wasn't anything wrong - it was just noisy valves and lifters. Maybe this is just an inherent issue with inline 6 cylinder engines. I am interested in comments from others who might be experiencing this issue - hopefully it is just an anomoly. Thanks in advance. Bryan "Kimchi"

11-12-2005, 11:10 PM	#3
joony79 mOOnarchy Drives: 330i SG Join Date: Oct 2005 Location: NJ Newport Posts: 329 iTrader: (0) Garage List 2006 330I [0.00]	I think it's because your car is BMW? maybe? I mean if it's your first BMW I had the same impression about the engine... but it's just because it's BMW... and there is nothing wrong with it... I guess you got your car not long ago because mine did the same thing at first and it was reduced after a while and now it's just like... I have to hear that sound of mine everyday.

11-15-2005, 06:46 AM	#5
Dante Major Drives: E91 330d / E89 Z4 Sdrive 30i Join Date: Nov 2005 Location: South Germany Posts: 1,415 iTrader: (0) Garage List 1989 E30 320is 2-door [5.00] 2010 E91 330d Touring [5.00] 2009 E89 Z4 Sdrive 30i [5.00] 1970 MGB GT [0.00]	Does the rattle fade away after 2 seconds and only appear after having the car parked a few hours (e.g. overnight)? Then its the self-adjustment of the valves. (sorry for bad description) It works hydraulic and has to fill up with oil after not running the engine for hours. Thats normal, I experience the same on my 325ti, especially if its cold outside. Bit annoying though. Hope that helped you