Pop noise during WOT

jer335 · 07-04-2014, 11:08 AM

Last night, I was doing a few WOT against this C32 AMG. During one of the WOTs, I heard this pop noise coming from the engine bay. I continued to do a few more WOTs after that and everything was fine, car pulled like normal, no check engine lights. My car is stock, operating temperature was about 210 degrees F. 2007 335i AT 83,000 miles. Also, I don't know if its me but I feel like I've heard this sound once before during a WOT, I just happened to notice it extra last night because I had my windows down.

e92_enthusiast_1 · 07-04-2014, 11:17 AM

That's a tell for a busted ChargePipe but that should give you a Reduced Engine Power warning. Have you double checked it?

AgentAvalos · 07-04-2014, 11:29 AM

Quote:

Originally Posted by e92_enthusiast_1

That's a tell for a busted ChargePipe but that should give you a Reduced Engine Power warning. Have you double checked it?

Sometimes it doesn't give you the light, that happened to me.

J3NGOe90 · 07-04-2014, 11:32 AM

must be charge pipe!

jer335 · 07-04-2014, 11:32 AM

is there an easy way to visually tell if it's busted without removing any parts? I don't have any time today to take anything apart and I do have to drive about 100 miles.

e92_enthusiast_1 · 07-04-2014, 11:37 AM

If its busted in the same fashion that 99% of them bust in then not really. The end by the throttle body usually is the suspect. Have a look at this one:

View post on imgur.com

when mine went I ran my hand all the way up it towards that end and I could feel it. I couldn't really see I until I removed the airbox. I have cones now though. If you have cones you should be able to see it if you lift em IMO.

Quote:

Originally Posted by jer335

is there an easy way to visually tell if it's busted without removing any parts? I don't have any time today to take anything apart and I do have to drive about 100 miles.

Karbon · 07-04-2014, 12:09 PM

Yep, probably the charge pipe.

I've had mine replaced under warranty twice. While stock.
The CP on the N54 sucks, best to get an aftermarket one like BMS or something solid.

Even the techs at the BMW dealer said the stock CP sucks and suggested I just get an aftermarket one.
I'm surprised BMW doesn't make a performance one that's metal.

07-04-2014, 11:08 AM	#1
jer335 Private 9 Rep 66 Posts Drives: 335i Join Date: Dec 2013 Location: San Jose, CA iTrader: (0)	Pop noise during WOT Last night, I was doing a few WOT against this C32 AMG. During one of the WOTs, I heard this pop noise coming from the engine bay. I continued to do a few more WOTs after that and everything was fine, car pulled like normal, no check engine lights. My car is stock, operating temperature was about 210 degrees F. 2007 335i AT 83,000 miles. Also, I don't know if its me but I feel like I've heard this sound once before during a WOT, I just happened to notice it extra last night because I had my windows down.
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07-04-2014, 11:17 AM	#2
e92_enthusiast_1 Lieutenant Colonel 35 Rep 1,652 Posts Drives: '10 AW/CR e92 6mt 335i Join Date: Mar 2012 Location: Chandler, AZ iTrader: (1) Garage List 2010 BMW 335i [0.00]	That's a tell for a busted ChargePipe but that should give you a Reduced Engine Power warning. Have you double checked it? __________________ COBB AP Stg 2+ FMIC Aggressive \| VRSF 3" Catless DP \| COBB FMIC \| BMS DCI \| CP-e Metal Charge Pipe \| 370+ whp/435+ lb.ft torque
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07-04-2014, 11:32 AM	#4
J3NGOe90 Banned 57 Rep 772 Posts Drives: e92 335i 6speed MT only! Join Date: Jul 2011 Location: brooklyn iTrader: (2)	must be charge pipe!
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07-04-2014, 11:32 AM	#5
jer335 Private 9 Rep 66 Posts Drives: 335i Join Date: Dec 2013 Location: San Jose, CA iTrader: (0)	is there an easy way to visually tell if it's busted without removing any parts? I don't have any time today to take anything apart and I do have to drive about 100 miles.
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07-04-2014, 12:09 PM	#7
Karbon First Lieutenant 22 Rep 363 Posts Drives: 2010 335i Join Date: Nov 2012 Location: Southwest Florida iTrader: (0)	Yep, probably the charge pipe. I've had mine replaced under warranty twice. While stock. The CP on the N54 sucks, best to get an aftermarket one like BMS or something solid. Even the techs at the BMW dealer said the stock CP sucks and suggested I just get an aftermarket one. I'm surprised BMW doesn't make a performance one that's metal. __________________ (SOLD)2010 Alpine White 335i - Sports Package, Premium Package, Navigation, Comfort Access 2016 Infiniti 3.0t Q50S
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