E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Help - Cars making a weird noise?



Reply
 
Thread Tools Search this Thread
      11-05-2010, 03:15 PM   #1
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

Help - Cars making a weird noise?

Was at the lights today and noticed a diesel engine kinda noise.. thought it was the car next to me.

Next time i was stopped i could still hear the sound.. Its like a shuddering/vibrating sound similar to a diesel.. It only happens on idle, and kinda fades in and out.. sometimes its really loud..

As soon as i apply the gas the noise goes away completely and the engine sound normal.

Got it booked in for tuesday.. anyone know what it could be? Its a petrol e92
MarvinMarvin is offline  
0
Reply With Quote
      11-05-2010, 03:30 PM   #2
willhollin
Major General
 
willhollin's Avatar
 
Drives: VW T5
Join Date: Apr 2008
Location: Worcestershire

Posts: 9,907
iTrader: (1)

Garage List
Ask Tony.
__________________
willhollin is offline   England
0
Reply With Quote
      11-05-2010, 03:31 PM   #3
dxb335d
The Tarmac Terrorist
 
dxb335d's Avatar
 
Drives: E46 M3 CS
Join Date: Mar 2007
Location: ''Fandango Towers''

Posts: 29,262
iTrader: (3)

Garage List
What petrol E92?
__________________
M3 gone .... But I now have a M3 CS
dxb335d is offline   England
0
Reply With Quote
      11-05-2010, 03:38 PM   #4
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

Quote:
Originally Posted by willhollin View Post
Ask Tony.
pm sent.
MarvinMarvin is offline  
0
Reply With Quote
      11-05-2010, 03:39 PM   #5
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

Quote:
Originally Posted by dxb335d View Post
What petrol E92?
325
MarvinMarvin is offline  
0
Reply With Quote
      11-05-2010, 03:44 PM   #6
M3-FAST
Defected to the dark side.....
 
M3-FAST's Avatar
 
Drives: BMW M5 LCi
Join Date: May 2007
Location: Stafford, UK

Posts: 5,790
iTrader: (11)

Garage List
sounds like the piezo injectors - dealer will probably report 'no fault found' - my 325i vert used to do it.

They are supposed to make that noise apparantly!
M3-FAST is offline   England
0
Reply With Quote
      11-05-2010, 03:50 PM   #7
toxicnerve
Colonel
 
Drives: E92 335d M-Sport
Join Date: Jul 2009
Location: UK

Posts: 2,834
iTrader: (2)

You lot crack me up
toxicnerve is offline  
0
Reply With Quote
      11-05-2010, 04:02 PM   #8
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

Quote:
Originally Posted by M3-FAST View Post
sounds like the piezo injectors - dealer will probably report 'no fault found' - my 325i vert used to do it.

They are supposed to make that noise apparantly!
i really hope its not
MarvinMarvin is offline  
0
Reply With Quote
      11-05-2010, 04:29 PM   #9
M3-FAST
Defected to the dark side.....
 
M3-FAST's Avatar
 
Drives: BMW M5 LCi
Join Date: May 2007
Location: Stafford, UK

Posts: 5,790
iTrader: (11)

Garage List
Quote:
Originally Posted by toxicnerve View Post
You lot crack me up
??
M3-FAST is offline   England
0
Reply With Quote
      11-10-2010, 07:17 AM   #10
M3-FAST
Defected to the dark side.....
 
M3-FAST's Avatar
 
Drives: BMW M5 LCi
Join Date: May 2007
Location: Stafford, UK

Posts: 5,790
iTrader: (11)

Garage List
....so did they resolve the problem?
M3-FAST is offline   England
0
Reply With Quote
      01-18-2011, 09:05 AM   #11
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

I took it in and they told me it needed a software update (shock) which is pretty much their answer to everything.

The service advisor told me that they were going to raise the idle RPM to stop the noise from returning. I then said to her that raising the idle is just covering up the problem (because the noise stops when a tiny bit of gas is applied).

She then went on about how they do this to a lot of cars with the same problem, blah blah, and if it recurrs bring the car back again, so I just told her to do what she thinks is best.

I get the car back, and she says the noise has stopped etc. I notice that they havent raised the idle RPM, the needle sitting in the exact same position as before.

Two days later I hear the noise again. Now to take it back. And on top of that for some reason all my shortcut number keys for nav/radio/etc have been wiped off, and i cannot reprogram them for some reason.
MarvinMarvin is offline  
0
Reply With Quote
      01-18-2011, 02:34 PM   #12
JonnySi
BMW Technician
 
JonnySi's Avatar
 
Drives: BMW
Join Date: Jun 2010
Location: England

Posts: 197
iTrader: (0)

The idle will be the same because it is not possible to adjust it. The noise is also a characteristic of direct injection petrol engines due to the high pressure of injection directly onto the piston crown.
JonnySi is offline  
0
Reply With Quote
      01-18-2011, 02:52 PM   #13
briers
Ben
 
briers's Avatar
 
Drives: XFR
Join Date: May 2010
Location: Midlands,UK

Posts: 1,965
iTrader: (0)

My dads new petrol merc sounds crap at idle too

Like Johnny said must just be the new high pressure fuel rail/pump combos they are using these days for fine tolerances.

The noise you describe is akin to my thoughts when hearing my dads car. I was going to tell him to ring them up about it but then i thought it must be the fuel tolerances and set up.
briers is offline   United Kingdom
0
Reply With Quote
      01-18-2011, 04:13 PM   #14
JonnySi
BMW Technician
 
JonnySi's Avatar
 
Drives: BMW
Join Date: Jun 2010
Location: England

Posts: 197
iTrader: (0)

Its almost like a pinking sound, its terrible really, my mums 118i does the same, makes my Si seem smooth and quiet.
JonnySi is offline  
0
Reply With Quote
      01-18-2011, 05:17 PM   #15
zltm089
Major General
 
zltm089's Avatar
 
Drives: 335i SE Coupe Space Grey
Join Date: Nov 2008
Location: LONDON

Posts: 7,318
iTrader: (0)

Garage List
2006 BMW 335i  [5.00]
Quote:
Originally Posted by toxicnerve View Post
You lot crack me up

__________________

Current Car: E92 335i SE Dream Cars: AMG SL65 Black,GallardoSuperleggera, GTR 2012, Agera R, F430 Scuderia, DBS, EVO X FQ400, Lexus LFA, F10 M5, M4, GT3 RS4.0, Ferrari 458, Ferrari F12, R8 V10 plus, Jaguar F Type V8, Lamborghini LP700-4 Aventador, Chevrolet Camaro ZL1, C63 AMG Coupe Black, Vanquish 2012, Laferrari, GT3 991, McLaren 650s.
zltm089 is offline   United Kingdom
0
Reply With Quote
      01-18-2011, 06:53 PM   #16
E92westy
Lieutenant
 
E92westy's Avatar
 
Drives: F20 118d Sport
Join Date: Nov 2009
Location: Staffs.

Posts: 549
iTrader: (2)

I had all new injectors in my 320i at one stage.
Drove it home it I thought 'great, drives good!', until I sat idling on the drive....
"WTF is that noise!!" says I, even getting out to listen to it.
Direct injection petrol engines can sound, errr, "crap" at idle.
__________________
E92westy is offline   United Kingdom
0
Reply With Quote
      01-19-2011, 12:58 AM   #17
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

I know what you guys mean, on idle it doesnt sound great, but after 2 years theres this new noise - like something is loose and rattling in the engine and it makes thuds as it rattles (but its not particularly loud)
MarvinMarvin is offline  
0
Reply With Quote
      01-19-2011, 07:35 AM   #18
simples
Second Lieutenant
 
Drives: 335i
Join Date: Nov 2009
Location: london

Posts: 274
iTrader: (0)

Quote:
Originally Posted by MarvinMarvin View Post
I know what you guys mean, on idle it doesnt sound great, but after 2 years theres this new noise - like something is loose and rattling in the engine and it makes thuds as it rattles (but its not particularly loud)
what dealer did u take it too? prehaps try another, i agree if a car has been fine for 2yrs then suddenly you start hearing strange noises, then it needs to be rectified. if all the same models are sounding that way from factory, than fine, but looks like this is not the case here. you never know may be an indicator of bigger problems to come??
simples is offline  
0
Reply With Quote
      01-20-2011, 01:27 PM   #19
MarvinMarvin
Enlisted Member
 
Drives: e92
Join Date: Mar 2010
Location: london

Posts: 38
iTrader: (0)

Quote:
Originally Posted by simples View Post
what dealer did u take it too? prehaps try another, i agree if a car has been fine for 2yrs then suddenly you start hearing strange noises, then it needs to be rectified. if all the same models are sounding that way from factory, than fine, but looks like this is not the case here. you never know may be an indicator of bigger problems to come??
This is exactly my train of thought.. Warranty is expiring this coming September aswell.

I took it to Sytner Harold Wood in Essex, which, in my experience of three dealers are the best out of a pretty bad bunch.
MarvinMarvin is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 09:23 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST