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      04-04-2018, 03:33 AM   #1
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MPE Exhaust rattle on cold start

Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
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      04-04-2018, 05:40 AM   #2
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Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
Drive it like it's stolen and paid for by someone else.
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      04-04-2018, 06:02 AM   #3
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Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
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      04-04-2018, 06:09 AM   #4
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Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port. i heard the current version they have fixed the rattle issue? which version do you have?
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      04-04-2018, 10:01 AM   #5
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Quote:
Originally Posted by RussM2 View Post
Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port. i heard the current version they have fixed the rattle issue? which version do you have?
I have an LCI. I've only heard the rattle once and it was for half a second.
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      04-04-2018, 10:20 AM   #6
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Originally Posted by jmh600cbr View Post
I have an LCI. I've only heard the rattle once and it was for half a second.
I have an LCI also and I have never heard the rattle.
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      04-04-2018, 10:32 AM   #7
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Quote:
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Quote:
Originally Posted by jmh600cbr View Post
I have an LCI. I've only heard the rattle once and it was for half a second.
I have an LCI also and I have never heard the rattle.
Open the valve with the door open. It was the only time I ever heard it.
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      04-04-2018, 10:54 AM   #8
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My MPE only rattled on start up if the valve was open. I got in the habit of turning on the car in comfort mode and closed valve, leaving the neighborhood then opening everything up.
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      04-04-2018, 10:57 AM   #9
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Quote:
Originally Posted by usafmike View Post
Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
Quote:
Originally Posted by usafmike View Post
Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
There is a number of YouTube videos of M2 cold start and no rattle.
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      04-04-2018, 10:58 AM   #10
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Quote:
Originally Posted by ORIGIN M. View Post
Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
Drive it like it's stolen and paid for by someone else.
Quote:
Originally Posted by usafmike View Post
Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
You read my mind
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      04-04-2018, 11:01 AM   #11
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Quote:
Originally Posted by RussM2 View Post
Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port. i heard the current version they have fixed the rattle issue? which version do you have?
Quote:
Originally Posted by usafmike View Post
Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
I have version 2 with the red button. I will let you know how it goes. It only happens on cold start so don't let that put you off, the MPE is amazing
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      04-04-2018, 11:03 AM   #12
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Quote:
Originally Posted by 430409M2 View Post
My MPE only rattled on start up if the valve was open. I got in the habit of turning on the car in comfort mode and closed valve, leaving the neighborhood then opening everything up.
Quote:
Originally Posted by usafmike View Post
Had the same issue with mine. The dealer sent videos to BMW and they said it was "normal." They kept it for a day and were able to do something to "quiet" it down a little bit, but it still rattles. I've just learned to live with it.
Mine rattles in comfort mode and it's loud
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      04-04-2018, 11:40 AM   #13
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Rattle usually lasts for a few seconds.
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      04-04-2018, 11:50 AM   #14
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Quote:
Originally Posted by RussM2 View Post
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port.
The M2 MPE is a joke

Between the 3000 rpm drone, cold start rattle and the red button in the trunk (for the europeans), I'm amazed people are still buying it. So many better options out there for similar money.
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      04-04-2018, 11:55 AM   #15
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Quote:
Originally Posted by andrewc89 View Post
Quote:
Originally Posted by RussM2 View Post
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port.
The M2 MPE is a joke

Between the 3000 rpm drone, cold start rattle and red button in the trunk (for the europeans), I'm amazed people are still buying it. So many better options out there for similar money.
The similar exhausts don't sound as grunty in my opinion, and mainly people buy them for the factory warranty.
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      04-04-2018, 12:45 PM   #16
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I have the LCI US version MPE and it doesnít rattle. Something I have noticed during cold starts is sometimes the whole rear end feels like itís shimmying for a couple of seconds.
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      04-04-2018, 12:54 PM   #17
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Update

Update

Just spoke with dealer before they close. Still doing a diagnostics on the exhaust.
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      04-04-2018, 12:57 PM   #18
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Quote:
Originally Posted by krizze View Post
Quote:
Originally Posted by andrewc89 View Post
Quote:
Originally Posted by RussM2 View Post
That is why i am on the edge about getting the MPE exhaust, I have one more month to make my decision if i should get it install at the port.
The M2 MPE is a joke

Between the 3000 rpm drone, cold start rattle and red button in the trunk (for the europeans), I'm amazed people are still buying it. So many better options out there for similar money.
The similar exhausts don't sound as grunty in my opinion, and mainly people buy them for the factory warranty.
I total agree, i don't like molested cars with all different custom parts. I think the carbon tips blow any other brand away.
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      04-04-2018, 01:48 PM   #19
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Quote:
Originally Posted by andrewc89 View Post
The M2 MPE is a joke

Between the 3000 rpm drone, cold start rattle and the red button in the trunk (for the europeans), I'm amazed people are still buying it. So many better options out there for similar money.
I need the factory warranty, Also I have to hear it in person if the drone is really horrible. Fellow member mentioned you can code it out? I have to meet up with someone with a m2 here in NJ to hear it for myself before i make the decision.
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      04-04-2018, 02:40 PM   #20
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Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
This is a very very well known issue, just search some.

Basically, the exhaust rubs against a bracket located about in the center of the car. The clamp tends to come loose as well. After a few visits to the dealer, I had my performance shop just weld it. Done!

Last edited by isjoey; 04-05-2018 at 08:11 AM..
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      04-04-2018, 03:08 PM   #21
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Quote:
Originally Posted by isjoey View Post
Quote:
Originally Posted by Wilsm2 View Post
Hi all

Taking the M2 to the dealers today, they want to keep it for 2 days as they don't know how to fix the rattle. Courtesy car is there new M3 comp.
This is a very very well known issue, just search some.

Basically, the exhaust rubs against a bracket located about in the center of the car. The clamp tens to come lose as well. After a few visits to the dealer, I had my performance shop just weld it. Done!
I told them its a know fault and is on the net, BMW HQ said there is no known fault. I will update tomorrow
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      04-04-2018, 03:11 PM   #22
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Only lasts about 8 seconds in cold temps..... does the same thing on M3/M4's and is very dependent on what the temperature is. Cold start = a little rattle. Does not bother me.
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