Sizzling Sound?

niqui · 07-17-2009, 01:31 AM

Has anybody noticed a sizzling sound coming from the front end of the car after a drive, after turning off the car. There will be 3-4 noises emitted by the car that sound like dropping water in a really hot plan...I noticed this a while back on my car, and popped the hood and saw nothing out of the ordinary. No smell.

Finnegan · 07-17-2009, 01:48 AM

Quote:

Originally Posted by niqui

Has anybody noticed a sizzling sound coming from the front end of the car after a drive, after turning off the car. There will be 3-4 noises emitted by the car that sound like dropping water in a really hot plan...I noticed this a while back on my car, and popped the hood and saw nothing out of the ordinary. No smell.

If the coolant levels are fine and the car isn't overheating and there's no "sweet" smell (which would be indicative of coolant) then it doesn't sound like the cooling system....

The only thing I can think of is condensation from the A/C hitting something hot on the engine or exhaust system--but usually that drains under the car and not into the engine bay.

Does this happen when using the A/C and not when the A/C isn't used?

I'm sure there are others here with more knowledge than I will offer up some suggested checks. There's always the dealer if this is something that's consistent and repeatable....

powertrip · 07-17-2009, 01:50 AM

Condensation dripping onto the exhaust...happens to mine all the time.

DD GT3 RD · 07-17-2009, 03:46 AM

prob hearing the breaks, they make popping sounds when hot

Bdez · 07-17-2009, 03:47 AM

Atypical of an M3 in humid and/or hot weather

NewM3driver · 07-17-2009, 07:26 AM

Quote:

Originally Posted by bdh2009

Atypical of an M3 in humid and/or hot weather

Mine does it some of the time.

Crazy Bimmer · 07-17-2009, 07:28 AM

Quote:

Originally Posted by powertrip

Condensation dripping onto the exhaust...happens to mine all the time.

Yep, same happens to me. No worries.

terry · 07-17-2009, 07:31 AM

It happens everyday..don't worry, just the A/C condensation dripping on the exhaust...

gr8000 · 07-17-2009, 07:46 AM

Quote:

Originally Posted by powertrip

Condensation dripping onto the exhaust...happens to mine all the time.

+1

(has already been identified / discussed in a previous thread)

Faceman · 07-17-2009, 08:20 AM

Funny...I was wondering the same thing. I get both the sizzling and the brake pops...glad it is nothing...didn't really think it was.

themetz · 07-17-2009, 08:30 AM

pop the bonnet and check for eggs and bacon

JohnnyRoaster · 07-17-2009, 08:36 AM

Quote:

Originally Posted by themetz

pop the bonnet and check for eggs and bacon

That made me laugh! He said there was no smell so probably no bacon.

John@BMW · 07-17-2009, 08:44 AM

Yep, condensation drainage from AC is hitting the exhaust. The best thing to do is pull off the panel under the trans and either reroute the drain line or add another length of hose to make it drain somewhere NOT over the exhaust.

DaFool · 07-17-2009, 09:07 AM

Quote:

Originally Posted by John@BMW

Yep, condensation drainage from AC is hitting the exhaust. The best thing to do is pull off the panel under the trans and either reroute the drain line or add another length of hose to make it drain somewhere NOT over the exhaust.

Does it hurt anything if we don't? I'm in Houston, TX, so we have extremely hot/humid weather and I get the sizzle even if I'm making my ~5 minute drive to work. The sound from mine sounds like it's coming from the front passenger side...

rbk1115 · 07-17-2009, 09:51 AM

Quote:

Originally Posted by gr8000

+1

(has already been identified / discussed in a previous thread)

+2

No need to worry as it is normal.

RL in Florida · 07-17-2009, 10:49 AM

Bacon bacon bacon! I smell bacon...

Kadarin · 07-17-2009, 12:02 PM

Um, my guess is that would be condensation dripping on the exhaust...

AwesomeM3 · 07-17-2009, 02:41 PM

Quote:

Originally Posted by themetz

pop the bonnet and check for eggs and bacon

Perhaps this is the source of the noise:

FStop7 · 07-17-2009, 03:37 PM

Every car I've owned has done this, condensation sizzles when dripping into something in the engine compartment that's hot.

farbarg · 07-17-2009, 04:19 PM

Totally normal. Brought up many times before.

Agent-GHQ · 07-17-2009, 05:20 PM

This is fairly common in all types of cars when operating under normal condition. I mean, something has to sizzle like sizzlers when its hot!

frankzlin79 · 07-17-2009, 08:20 PM

"Mmmm....bacon....gwuuuaahhh"

My car also sizzles almost every time I drive, too. I was always wondering what that was. I guess now I know!

07-17-2009, 01:31 AM	#1
niqui Brigadier General Drives: Jet Black E92 M3 Join Date: Feb 2009 Location: Canada Posts: 3,096 iTrader: (7)	Sizzling Sound? Has anybody noticed a sizzling sound coming from the front end of the car after a drive, after turning off the car. There will be 3-4 noises emitted by the car that sound like dropping water in a really hot plan...I noticed this a while back on my car, and popped the hood and saw nothing out of the ordinary. No smell.
	Tweet

07-17-2009, 01:50 AM	#3
powertrip Scared money don't make money. Drives: 2009 E92 M3 DCT Join Date: Apr 2009 Location: Irvine, CA Posts: 1,459 iTrader: (3) Garage List 2009 E92 M3 [0.00]	Condensation dripping onto the exhaust...happens to mine all the time. __________________ 2009 E92 M3/DCT/Alpine White/Fox Red/Carbon Leather OE Tuned 402 whp & 303 wtq/Gintani X-pipe/MXP Axle Back/Rogue Pulley/AFE Stage 2/Cosmetics By IND & EAS HUGE THANKS: Gintani, OE Tuning, and EAS

07-17-2009, 07:31 AM	#8
terry Second Lieutenant Drives: 2009 M3 Convert Jerez Black Join Date: Aug 2006 Location: Misssissippi, USA Posts: 257 iTrader: (0) Garage List 2007 328i [0.00]	It happens everyday..don't worry, just the A/C condensation dripping on the exhaust... __________________ E93 M3 Jerez Black / Bamboo Beige / ZCW / ZTP / 4MZ / 19"

07-17-2009, 08:44 AM	#13
John@BMW I can't belive this car is a 4 door family sedan. Drives: 2008 M3 sedan, '96 M3 Join Date: Jan 2009 Location: Atlanta Posts: 386 iTrader: (1)	Yep, condensation drainage from AC is hitting the exhaust. The best thing to do is pull off the panel under the trans and either reroute the drain line or add another length of hose to make it drain somewhere NOT over the exhaust. __________________

07-17-2009, 03:37 PM	#19
FStop7 I like cars Drives: M6 Join Date: Oct 2008 Location: Newbury Park, CA Posts: 5,061 iTrader: (3)	Every car I've owned has done this, condensation sizzles when dripping into something in the engine compartment that's hot. __________________ My photostream: http://www.flickr.com/photos/racelap/

07-17-2009, 03:46 AM	#4
DD GT3 RD Major Drives: 08 M3 DCT AW/Red Join Date: May 2009 Location: West Hollywood Posts: 1,252 iTrader: (1)	prob hearing the breaks, they make popping sounds when hot

07-17-2009, 03:47 AM	#5
Bdez Private First Class Drives: E92 M3 Jerez & Fox & X5 3.0d Join Date: Feb 2008 Location: Brisbane Posts: 165 iTrader: (0)	Atypical of an M3 in humid and/or hot weather

07-17-2009, 08:20 AM	#10
Faceman Enlisted Member Drives: SSII FR Join Date: Apr 2009 Location: ATL Posts: 47 iTrader: (0)	Funny...I was wondering the same thing. I get both the sizzling and the brake pops...glad it is nothing...didn't really think it was.

07-17-2009, 08:30 AM	#11
themetz smokin' kipper Drives: //RS5 Join Date: Feb 2009 Location: UK Posts: 1,412 iTrader: (2)	pop the bonnet and check for eggs and bacon

07-17-2009, 10:49 AM	#16
RL in Florida Private First Class Drives: 2008 Jet Black M3 Convertible Join Date: Aug 2008 Location: SouthWest Florida Posts: 123 iTrader: (2)	Bacon bacon bacon! I smell bacon...

07-17-2009, 12:02 PM	#17
Kadarin Ambassador of Crunk Drives: SG/blk '08 E92 M3 Join Date: Apr 2008 Location: San Jose, CA Posts: 606 iTrader: (0)	Um, my guess is that would be condensation dripping on the exhaust...

07-17-2009, 04:19 PM	#20
farbarg First Lieutenant Drives: SSII e90 Join Date: Mar 2008 Location: San Diego Posts: 310 iTrader: (0)	Totally normal. Brought up many times before.

07-17-2009, 05:20 PM	#21
Agent-GHQ New Member Drives: '01 Prelude Type SH Join Date: Jul 2009 Location: San Diego, CA Posts: 23 iTrader: (0)	This is fairly common in all types of cars when operating under normal condition. I mean, something has to sizzle like sizzlers when its hot!

07-17-2009, 08:20 PM	#22
frankzlin79 Lieutenant Colonel Drives: 2013 Nissan GT-R Join Date: Oct 2008 Location: Houston, Texas Posts: 1,614 iTrader: (5)	"Mmmm....bacon....gwuuuaahhh" My car also sizzles almost every time I drive, too. I was always wondering what that was. I guess now I know!

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