E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > Weird crackling through speakers?



Reply
 
Thread Tools Search this Thread
      04-23-2013, 12:57 PM   #1
NJ 1161
Major
 
NJ 1161's Avatar
 
Drives: 335D M3
Join Date: Nov 2011
Location: UK

Posts: 1,089
iTrader: (0)

Weird crackling through speakers?

Got my m3 back today, after 3 weeks ( grrrr) and the speakers are doing weird things. Odd cracking noises coming through different ones even when the ignition was off!

Whilst it was away they wrapped the inner door shut near the front door hinge, and I wondered if the wires in there were messed with but they look un touched?

On further inspection the speaker under the passenger seat ( the bass one?) is farting away! Could this have blown and caused the weird crackling?
__________________
NJ 1161 is offline  
0
Reply With Quote
      04-23-2013, 03:28 PM   #2
JYohay
Banned
 
Drives: 2011 X5
Join Date: Mar 2012
Location: NY

Posts: 2,011
iTrader: (3)

ussually i sign of the amp going.
check the trunk for water in the amp
JYohay is offline  
0
Reply With Quote
      04-23-2013, 03:31 PM   #3
NJ 1161
Major
 
NJ 1161's Avatar
 
Drives: 335D M3
Join Date: Nov 2011
Location: UK

Posts: 1,089
iTrader: (0)

Seems like a good starting point. Will check it out in morning.
__________________
NJ 1161 is offline  
0
Reply With Quote
      04-23-2013, 04:12 PM   #4
makkan00
Major General
 
makkan00's Avatar
 
Drives: E91 330D
Join Date: Dec 2011
Location: Essex

Posts: 7,072
iTrader: (48)

Quote:
Originally Posted by JYohay View Post
ussually i sign of the amp going.
check the trunk for water in the amp
+1
If you have one, it should be on the left hand side. Remove the tray and see if you have an amp, and any water there?
__________________
makkan00 is offline   United Kingdom
0
Reply With Quote
      04-23-2013, 11:50 PM   #5
smoked
Private First Class
 
Drives: 335i Touring
Join Date: Aug 2011
Location: United Kingdom

Posts: 131
iTrader: (2)

exactly same thing happened to me with water on my logic 7 dsp. if I'd diagnosed earlier i could have saved the amp! grr
smoked is offline  
0
Reply With Quote
      04-24-2013, 04:45 AM   #6
NJ 1161
Major
 
NJ 1161's Avatar
 
Drives: 335D M3
Join Date: Nov 2011
Location: UK

Posts: 1,089
iTrader: (0)

Went and had a look and a f&£kin cm of water swilling about below amp!!!



Difficult to picture but the white ish line at the back is the water level line!

Took it all out and drying off. Luckily the amp is raised so not submerged!

What are my chances if it working again? Any tips?

How does this happen?

I've never had a prob before? Or have I just never noticed?
__________________
NJ 1161 is offline  
0
Reply With Quote
      04-24-2013, 03:11 PM   #7
smoked
Private First Class
 
Drives: 335i Touring
Join Date: Aug 2011
Location: United Kingdom

Posts: 131
iTrader: (2)

dont know how it happened on mine either. its never happened since regardless of the weather. mistery.

dry it out and give it a go... if its not working right I have seen people rescue them by opening them up and using contact cleaner on any corroded bits
smoked is offline  
0
Reply With Quote
      04-25-2013, 02:09 PM   #8
ceaton88
Lieutenant
 
ceaton88's Avatar
 
Drives: 325i E92
Join Date: Feb 2013
Location: West Sussex, UK

Posts: 441
iTrader: (0)

Garage List
E92 325i  [5.00]
I've also randomly had this one day, unlocked the car stepped inside the cabin & loud static like sound coming from rear speakers. Little research suggested it would be the amp, haven't checked for moisture myself but if water can get through once it can get through again so will need sorting at some point I guess. I have read that the issue occurs very rarely though, so it's difficult to replicate for BMW.
ceaton88 is offline   South Africa
0
Reply With Quote
      04-25-2013, 02:24 PM   #9
NJ 1161
Major
 
NJ 1161's Avatar
 
Drives: 335D M3
Join Date: Nov 2011
Location: UK

Posts: 1,089
iTrader: (0)

Had it drying out and refitted. The weird noises have stopped on initially inspection, but the bass through the speakers ( appears to be all) sounds very poor. Like the speakers have blown, but I'm guessing it must be the input from the amp?,

Will dry it out further but doesn't seem positive so far!
__________________
NJ 1161 is offline  
0
Reply With Quote
      04-25-2013, 04:25 PM   #10
makkan00
Major General
 
makkan00's Avatar
 
Drives: E91 330D
Join Date: Dec 2011
Location: Essex

Posts: 7,072
iTrader: (48)

Quote:
Originally Posted by NJ 1161 View Post
Had it drying out and refitted. The weird noises have stopped on initially inspection, but the bass through the speakers ( appears to be all) sounds very poor. Like the speakers have blown, but I'm guessing it must be the input from the amp?,

Will dry it out further but doesn't seem positive so far!
Nick
Do you have hi-fi sound system? It sounds like you have CD player and there is an amp below it. Difficult to see as the pic is showing half of it.

Open the amp and dry it completely before you try. And when you try after drying and still get buzzing / popping , then the amp or drivers (speakers / subs) may be faulty.

Are you any good with multi-meters?
__________________
makkan00 is offline   United Kingdom
0
Reply With Quote
      04-26-2013, 03:21 AM   #11
smoked
Private First Class
 
Drives: 335i Touring
Join Date: Aug 2011
Location: United Kingdom

Posts: 131
iTrader: (2)

Quote:
Originally Posted by NJ 1161
Had it drying out and refitted. The weird noises have stopped on initially inspection, but the bass through the speakers ( appears to be all) sounds very poor. Like the speakers have blown, but I'm guessing it must be the input from the amp?,

Will dry it out further but doesn't seem positive so far!
obv if the amp was powered while the water was sloshing about it will corrode contacts a lot quicker, it mayb that your bass output is all snotted up? worth getting the little torx bits out and having a look
smoked 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 05:05 PM.




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