a problem with m3 - encore innovation

Jasonq · 06-25-2009, 11:54 AM

Hi, everyone, i am a new register in this forum...thanks for help...

I have a little problem with my m3, it is appeared after i changed its muffler, the encore innovation titanium one, for sure the sounds goes up, but when it being a cold start(always in the morning), then the noise comes out from the rear, and continuing about 1 minute then getting warm, less shake, then noise disappeared. i thought it is because the muffler is too shake, and it is only arise with a cold start, the noise may comes out from the rear bumper or somewhere, is it correct? does anybody have similar problem... and is it normal?

THANKS A LOT...

SlammedM6 · 06-25-2009, 12:13 PM

welcome to the forum,

Im not exactly sure what your saying, but do you mean you have a rattle/vibration when it is cold?

If so, it could be because your exhaust is touching the frame?

Jasonq · 06-25-2009, 12:25 PM

Quote:

Originally Posted by slammedm3

welcome to the forum,

Im not exactly sure what your saying, but do you mean you have a rattle/vibration when it is cold?

If so, it could be because your exhaust is touching the frame?

yes, rattle continuing 30 seconds when the engine cold in the morning, but it's not like metal sound, I checked, ,my exhaust is not touching the frame...
it is so palsied，because it's titanium.

jojogoya88 · 06-25-2009, 12:49 PM

car has to warm up...then it will settle, completely normal.

JohnnyRoaster · 06-25-2009, 12:54 PM

I am pretty sure the titanium would make more noise heating up.

Jasonq · 06-25-2009, 01:01 PM

Quote:

Originally Posted by JohnnyRoaster

I am pretty sure the titanium would make more noise heating up.

yes, but the rattle may from the junction of the rear bumper and body...

Davinhci · 06-25-2009, 01:14 PM

Yeah I experienced it with my stock exhaust. It lasted no more than 20 seconds though. I have not had that issue with my new exhaust.

dogears · 06-25-2009, 03:19 PM

Most, if not all, have that issue on cold start. I think it has to do with the emission related air injection pump. This operates on cold start to help reduce emissions. It goes away after a minute.

Adonislike · 06-25-2009, 03:21 PM

Quote:

Originally Posted by Davinhci

Yeah I experienced it with my stock exhaust. It lasted no more than 20 seconds though. I have not had that issue with my new exhaust.

Gone through the same thing. Very Normal

Green///Hell · 06-25-2009, 03:30 PM

Normal its warm up mode when car is first turned on and you idle above 1k rpm
More so in winter and cold weather will you hear this

tabolau · 06-25-2009, 07:19 PM

It's totally normal.

06-25-2009, 11:54 AM	#1
Jasonq New Member Drives: 09 M3 M-dct Join Date: Jun 2009 Location: HONG KONG Posts: 7 iTrader: (0)	a problem with m3 - encore innovation Hi, everyone, i am a new register in this forum...thanks for help... I have a little problem with my m3, it is appeared after i changed its muffler, the encore innovation titanium one, for sure the sounds goes up, but when it being a cold start(always in the morning), then the noise comes out from the rear, and continuing about 1 minute then getting warm, less shake, then noise disappeared. i thought it is because the muffler is too shake, and it is only arise with a cold start, the noise may comes out from the rear bumper or somewhere, is it correct? does anybody have similar problem... and is it normal? THANKS A LOT...
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06-25-2009, 12:13 PM	#2
SlammedM6 Brigadier General Drives: 2011 RR Sport Autobiography Join Date: Jul 2007 Location: Toronto Posts: 4,924 iTrader: (2)	welcome to the forum, Im not exactly sure what your saying, but do you mean you have a rattle/vibration when it is cold? If so, it could be because your exhaust is touching the frame? __________________

06-25-2009, 12:49 PM	#4
jojogoya88 Second Lieutenant Drives: 2008 E90 M3 IB Join Date: Dec 2008 Location: LI, Ny Posts: 262 iTrader: (1)	car has to warm up...then it will settle, completely normal. __________________ 2008 E90 M3 - Interlagos Blue (stock for now)

06-25-2009, 12:54 PM	#5
JohnnyRoaster Captain Drives: 09 Jerez Black M3 Sedan Join Date: Nov 2008 Location: Outside Beantown Posts: 940 iTrader: (0)	I am pretty sure the titanium would make more noise heating up. __________________

06-25-2009, 01:14 PM	#7
Davinhci Colonel Drives: 08 M3 E92 & 08 E70 X5 4.8 Join Date: Mar 2008 Location: Austin, TX Posts: 2,462 iTrader: (6) Garage List 2008 M3 [0.00]	Yeah I experienced it with my stock exhaust. It lasted no more than 20 seconds though. I have not had that issue with my new exhaust. __________________ 08 E92 AW M3 \| HRE P40 19" \| APE Air Filter \| BMW Performance Grills \| White Side Gills \| CF Mirror Covers \| BMW Performance Pedals \| F1 Pinnacle Tint \| V1 Hardwire \| Dinan Performance Software \| Gintani Exhaust \| H&R Sports Springs \| RPI Scoops \| BMW CF Spoiler \| Challenge Diffuser \| Lux H8 V3 \| LCI Tail Lights \|

06-25-2009, 03:19 PM	#8
dogears My master volume goes to 11 Drives: 2009 Space Gray M3 Sedan M-DCT Join Date: Dec 2008 Location: Cherry Hill, NJ Posts: 407 iTrader: (0)	Most, if not all, have that issue on cold start. I think it has to do with the emission related air injection pump. This operates on cold start to help reduce emissions. It goes away after a minute. __________________ 2009 Space Gray Carbon Leather E90 with DCT, Loaded except for that stupid cruise control and moonroof. Mods: AA pulley and air filter. Fabspeed 200 cell cats, Xpipe w/resonators and no secondary cats, Powerchip tune, Eisenmann Sport Mufflers, Xenon interior lights, Vorsteiner Rear Diffuser II, SWS8 subs, JL Audio XD400 bridged 2X200W

06-25-2009, 03:30 PM	#10
Green///Hell Colonel Drives: E92 M3 6MT AW Join Date: Feb 2009 Location: Sydney/Chicago Posts: 2,587 iTrader: (5)	Normal its warm up mode when car is first turned on and you idle above 1k rpm More so in winter and cold weather will you hear this __________________

06-25-2009, 07:19 PM	#11
tabolau Enlisted Member Drives: 08 E92 M3 & 09 ML Join Date: Jan 2006 Location: Los Angeles Posts: 48 iTrader: (1)	It's totally normal.

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