09-29-2014, 09:41 AM | #1 |
Second Lieutenant
118
Rep 287
Posts |
OEM exhaust metallic clicking noise
Hi all,
I mounted my GoPro to my exhaust and I heard something strange after checking out the video. I never noticed this from driving .. so it is really at the exhaust. Nearly evertime I accelerate you hear a metallic clicking noise. Can somebody tell me what that is or if I should not worry about it? Engine is warm and everything was in sport+ mode. is this the exhaust valve? 1:38 2:06 2:20 2:38 2:55 3:14 3:48 there you can cleary hear what I mean.
__________________
Last edited by LukasAT; 09-29-2014 at 09:54 AM.. |
09-29-2014, 09:57 AM | #2 |
First Lieutenant
42
Rep 308
Posts |
I hear a lot more often than the times you've outlined. Not sure what it is. Anything loose?
__________________
Mineral Grey F80 M3 /// Full Sakhir Leather Interior /// 19" Light Alloy Wheels /// M Adaptive Suspension /// DCT /// Carbon Fiber Trim /// Carbon Fiber Roof /// Executive Package /// HK /// LED Lighting /// MPE /// KW HAS /// ESS E-Tronic
|
Appreciate
0
|
09-29-2014, 09:58 AM | #3 | |
Second Lieutenant
118
Rep 287
Posts |
Quote:
at the end of the drive, which is not in the video, there was nothing anymore ..
__________________
|
|
Appreciate
0
|
09-29-2014, 10:00 AM | #4 |
First Lieutenant
42
Rep 308
Posts |
Could simply be the metal expanding as it gets hot.
__________________
Mineral Grey F80 M3 /// Full Sakhir Leather Interior /// 19" Light Alloy Wheels /// M Adaptive Suspension /// DCT /// Carbon Fiber Trim /// Carbon Fiber Roof /// Executive Package /// HK /// LED Lighting /// MPE /// KW HAS /// ESS E-Tronic
|
Appreciate
0
|
09-29-2014, 10:53 AM | #6 |
Second Lieutenant
118
Rep 287
Posts |
I would also say its either the flaps opening or the metal expanding when its get hotter ... but anybody else notice that so far?
__________________
|
Appreciate
0
|
09-29-2014, 10:57 AM | #7 | |
Lieutenant
225
Rep 489
Posts |
Quote:
If you just turn on your car and wait until the cold idle goes down and turn it to sport plus from eco.. you will hear it. its the flaps.
__________________
2020 M2C.
|
|
Appreciate
0
|
09-29-2014, 11:00 AM | #8 |
Second Lieutenant
118
Rep 287
Posts |
and when the car is hot the flaps stay always open? because this clicking disappears after sometime
__________________
|
Appreciate
0
|
09-29-2014, 11:04 AM | #9 | |
Lieutenant
225
Rep 489
Posts |
Quote:
its probably already open.
__________________
2020 M2C.
|
|
Appreciate
0
|
09-29-2014, 12:24 PM | #10 |
Colonel
471
Rep 2,991
Posts |
No, I think the pieces heat up and expand, closing the play in it. The valves always close between 2000-3000 rpm at small throttle openings to prevent drone, but in sport or sport plus Engine mode, the valves are mostly open except for that. This does mean that you have a lot of opening and closing going on, resulting in the clicking
|
Appreciate
0
|
09-29-2014, 01:26 PM | #11 | |
Lieutenant
59
Rep 416
Posts |
Quote:
http://f80.bimmerpost.com/forums/sho...1010934&page=2 |
|
Appreciate
0
|
09-29-2014, 02:18 PM | #12 |
Brigadier General
1003
Rep 3,396
Posts |
I have read a few on this site have had BMW replace under warranty. Or even asked for an M performamce upgrade, paying the difference of MSRP. Of course all this will vary from dealer to dealer, and my guess is if enough complain, a BMW retro fix will soon appear rather than eating the cost of a new muffler replacements.
__________________
|
Appreciate
0
|
09-29-2014, 03:07 PM | #13 | |
Second Lieutenant
118
Rep 287
Posts |
Quote:
__________________
|
|
Appreciate
0
|
09-29-2014, 09:02 PM | #14 |
Brigadier General
1003
Rep 3,396
Posts |
Please let me know how you come out, even on PM if you wish. I get my car next week and if I have the same experience rattling, I'd like to know which dealer you went to, and if they did offer you a swap out + $. Are you in NOVA area by any chance?
__________________
|
Appreciate
0
|
09-29-2014, 09:02 PM | #15 |
Lieutenant Colonel
458
Rep 1,633
Posts |
Exhaust flaps I have it on my RS5. Nothing to worry about but it might be a good opportunity to upgrade to the Performance exhaust. I hope this issue continues from BMW until I order my car .
|
Appreciate
0
|
09-29-2014, 10:06 PM | #16 |
Second Lieutenant
118
Rep 287
Posts |
yes I will let you know what comes out although I think it is nothing to worry about .. but yeah if I can upgrade to the MPE why not
__________________
|
Appreciate
0
|
09-30-2014, 08:16 AM | #17 |
Second Lieutenant
118
Rep 287
Posts |
according to the dealer they dont heard anything about BMW replacing exhausts .. but they will check. So lets wait for more information ..
__________________
|
Appreciate
0
|
09-30-2014, 08:50 AM | #18 |
Private
8
Rep 65
Posts |
That is what the exhaust valves sound like when they open and close. It truly is normal operation.
I can say that this is the BEST sounding OEM exhaust I have heard to date. No rattling at any time. Not trying to be a dick by saying this but if you put a go pro at the tailpipes and hear a metallic click, in no way is that a manufacturing defect that would justify replacement of the exhaust. Nowhere near the rattle that I and others have experienced. |
Appreciate
0
|
09-30-2014, 09:53 AM | #19 | |
Second Lieutenant
118
Rep 287
Posts |
Quote:
__________________
|
|
Appreciate
0
|
09-30-2014, 10:03 AM | #20 |
Brigadier General
1003
Rep 3,396
Posts |
Exactly!
__________________
|
Appreciate
0
|
09-30-2014, 11:18 AM | #21 |
Private
8
Rep 65
Posts |
|
Appreciate
0
|
09-30-2014, 12:56 PM | #22 |
Second Lieutenant
118
Rep 287
Posts |
I thought they are experts? so they should rather fast distinguish between a faulty exhaust or not. I only sent them the video and ask them if this is ok or not and that I heard that BMW is replacing exhaust because of that similiar noise ...
__________________
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|