cold start

G80indy · 11-05-2013, 09:37 AM

I usually let it settle down also before driving off....
Pardon the question..... Can someone explain exactly what is happening during the cold start, the associated sounds with it from your observation, how long it takes etc.
want to compare notes because when I start mine in the morning it makes many sounds I've not heard before.... Used to have an M Toadster with S54 but this S65 is raucous !
.... Sounds at first almost like oil hasn't yet reached the valve train but perhaps this is the normal cold start function.

G80indy · 11-06-2013, 10:13 AM

... anyone ... ?

thekurgan · 11-06-2013, 11:57 AM

I believe starting with 231E software revision, it's only 60 seconds. I don't know the internals, but I suspect the cam phasers are adjusted and the secondary air pump active to speed the heat up of the primary cats.

dunzer01 · 02-03-2015, 08:16 AM

Thread is old but relevant to what I was needing to know. I have the Akra full system installed on my M3 and on start up it is loud! I feel sorry for the neighbours but once the cold start has finished it is considerably quieter. I was looking to see if the cold start could be removed and from what I have read it can be, all good.

Imran@Evolve · 02-03-2015, 08:38 AM

Quote:

Originally Posted by dunzer01

Thread is old but relevant to what I was needing to know. I have the Akra full system installed on my M3 and on start up it is loud! I feel sorry for the neighbours but once the cold start has finished it is considerably quieter. I was looking to see if the cold start could be removed and from what I have read it can be, all good.

Yes it can be removed along with an ECU tune.

SVH · 02-03-2015, 09:08 AM

Well, here's my 2 cents worth.
Had an ESS 650, asked for cold start removal. ESS said that since I live in New England and it gets "cold", they left it in, even though I have the full Akra.

Garage does shake till it warms up, it's cool but a bit much!

dunzer01 · 02-04-2015, 09:35 AM

Quote:

Originally Posted by SVH

Well, here's my 2 cents worth.
Had an ESS 650, asked for cold start removal. ESS said that since I live in New England and it gets "cold", they left it in, even though I have the full Akra.

Garage does shake till it warms up, it's cool but a bit much!

Agreed, I was even thinking about putting the stock system back on but I would miss it too much once out on the road.

shuggy · 09-24-2017, 07:58 PM

I have a MPE + Test Pipes + ESS Tune setup. Even though I kept cold start with the tune, I've noticed that cold starts aren't as loud and as aggressive as when I just had the MPE (or it may not even be doing full cold start cycle.)

Recently, the Test Pipes + ESS Tune were removed to pass smog and I again noticed a considerably louder cold start cycle being back with stock + MPE.

Anyone have similar experiences? Is this an ESS Tune issue?

11-05-2013, 09:37 AM	#45
G80indy Save the Manuals 1714 Rep 2,937 Posts Drives: Z3, E46, G80 Join Date: May 2005 Location: Indy iTrader: (0)	I usually let it settle down also before driving off.... Pardon the question..... Can someone explain exactly what is happening during the cold start, the associated sounds with it from your observation, how long it takes etc. want to compare notes because when I start mine in the morning it makes many sounds I've not heard before.... Used to have an M Toadster with S54 but this S65 is raucous ! .... Sounds at first almost like oil hasn't yet reached the valve train but perhaps this is the normal cold start function. __________________ 2023 G80 6MT, CCBs 2002 330i Dinan, 5MT 2000 Z3 Conforti, 5MT
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11-06-2013, 10:13 AM	#46
G80indy Save the Manuals 1714 Rep 2,937 Posts Drives: Z3, E46, G80 Join Date: May 2005 Location: Indy iTrader: (0)	... anyone ... ? __________________ 2023 G80 6MT, CCBs 2002 330i Dinan, 5MT 2000 Z3 Conforti, 5MT
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11-06-2013, 11:57 AM	#47
thekurgan Bad Lieutenant 232 Rep 3,517 Posts Drives: E90M3 Join Date: Aug 2007 Location: Sacramento iTrader: (0) Garage List 2008 BMW M3 [0.00]	I believe starting with 231E software revision, it's only 60 seconds. I don't know the internals, but I suspect the cam phasers are adjusted and the secondary air pump active to speed the heat up of the primary cats. __________________ 02 E39M5 \| TiAg/Schwartz \| Tubi Rumore \| Ultimate Ti Pedals \| E60 SSK \| Jim Blanton 3.45 40/100% \| Coby Alcantara \| StrongStrut STB
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02-03-2015, 08:16 AM	#48
dunzer01 New Member 0 Rep 5 Posts Drives: 2009 E92 Join Date: Feb 2015 Location: Aberdeenshire iTrader: (0)	Thread is old but relevant to what I was needing to know. I have the Akra full system installed on my M3 and on start up it is loud! I feel sorry for the neighbours but once the cold start has finished it is considerably quieter. I was looking to see if the cold start could be removed and from what I have read it can be, all good.
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02-03-2015, 09:08 AM	#50
SVH First Lieutenant 152 Rep 392 Posts Drives: 2016 328i & 2011-e93 TT Join Date: Jun 2012 Location: Long Island, NY iTrader: (0)	Well, here's my 2 cents worth. Had an ESS 650, asked for cold start removal. ESS said that since I live in New England and it gets "cold", they left it in, even though I have the full Akra. Garage does shake till it warms up, it's cool but a bit much!
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09-24-2017, 07:58 PM	#52
shuggy Second Lieutenant 39 Rep 219 Posts Drives: '11 E90M3, '20 X3M, '20 RRSSVR Join Date: Apr 2010 Location: Los Angeles, CA iTrader: (2)	I have a MPE + Test Pipes + ESS Tune setup. Even though I kept cold start with the tune, I've noticed that cold starts aren't as loud and as aggressive as when I just had the MPE (or it may not even be doing full cold start cycle.) Recently, the Test Pipes + ESS Tune were removed to pass smog and I again noticed a considerably louder cold start cycle being back with stock + MPE. Anyone have similar experiences? Is this an ESS Tune issue? __________________ 2011 E90 M3 \| Space Gray \| RKP CF Roof \| MPerf Recaro \| Full Interior CF & Alcantara \| BMW MPE v2, MS Test Pipes \| BPM Tune \| MFactory CF DS \| Bilstein B6 Damptronic \| Full DINAN & Eventuri & DO88 \| Modesta BC-04 \| Potenza RE-71R 2020 X3M 2020 Range Rover Sport SVR
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