BMW M4 S55 noise when hot

franzzz · 08-18-2019, 10:29 AM

Hi

My engine sound strange when hot (after 1.40sec in idle)

any idea ?

franzzz · 08-18-2019, 10:30 AM

AlpsRider · 08-18-2019, 12:05 PM

So the noise stops when you remove the oil filler cap? If so then it could be a vacuum leak somewhere from the emissions stuff.

yayaya · 08-18-2019, 12:48 PM

Had this on my N55 335xi it was valve cover gasket.

franzzz · 08-18-2019, 01:02 PM

Quote:

Originally Posted by yayaya

Had this on my N55 335xi it was valve cover gasket.

PCV valve on the cover ?

Iceman51sn · 08-19-2019, 09:32 AM

Quote:

Originally Posted by franzzz

Hi

My engine sound strange when hot (after 1.40sec in idle)

any idea ?

Getting the same thing on mine as of yesterday. I'll keep you posted if I find any other info as well.

franzzz · 08-19-2019, 05:04 PM

Today i have visited my dealer.

Wait for response and solution.

JamesGames · 08-19-2019, 07:00 PM

Definitely crankcase pressure related since your sound goes away when you open the oil cap, my guess is a leak somewhere around the CCV/PCV or valve cover leaking somewhere.

yayaya · 08-19-2019, 07:27 PM

Quote:

Originally Posted by franzzz

Quote:

Originally Posted by yayaya

Had this on my N55 335xi it was valve cover gasket.

PCV valve on the cover ?

Yup had the exact same noise and dissipation.

franzzz · 08-20-2019, 02:18 AM

Quote:

Originally Posted by yayaya

Yup had the exact same noise and dissipation.

OK TNX !

Dealer says the problem is located in the "engine cover"
Part number 11127846359

must replaced.

6 hours of work and 1000$ for the piece.

Wait for warranty response

yayaya · 08-22-2019, 11:19 AM

Quote:

Originally Posted by franzzz

Quote:

Originally Posted by yayaya

Yup had the exact same noise and dissipation.

OK TNX !

Dealer says the problem is located in the "engine cover"
Part number 11127846359

must replaced.

6 hours of work and 1000$ for the piece.

Wait for warranty response

Engine cover? Haha Tell them to take engine cover off and see if noise goes away.

franzzz · 08-24-2019, 06:31 AM

Cover replaced :

11127846359
11377502022

Car now is perfect.

Michell · 12-24-2019, 10:37 AM

How long do you run your car with that problem ?
I have the same issue.
And I don’t know if I can use the vehicle while valve cover is ready to install.

Michell · 12-24-2019, 10:39 AM

Quote:

Originally Posted by Iceman51sn

Getting the same thing on mine as of yesterday. I'll keep you posted if I find any other info as well.

How long do you run your car with that problem ?
I have the same issue.
And I don’t know if I can use the vehicle while valve cover is ready to install.

Michell · 12-24-2019, 10:41 AM

Quote:

Originally Posted by Iceman51sn

Getting the same thing on mine as of yesterday. I'll keep you posted if I find any other info as well.

Quote:

Originally Posted by JamesGames

Definitely crankcase pressure related since your sound goes away when you open the oil cap, my guess is a leak somewhere around the CCV/PCV or valve cover leaking somewhere.

How bad is running the car. Normal drive while my valve cover is ready to install ?

yayaya · 12-24-2019, 11:15 AM

Quote:

Originally Posted by Michell

Quote:

Originally Posted by Iceman51sn

Getting the same thing on mine as of yesterday. I'll keep you posted if I find any other info as well.

Quote:

Originally Posted by JamesGames

Definitely crankcase pressure related since your sound goes away when you open the oil cap, my guess is a leak somewhere around the CCV/PCV or valve cover leaking somewhere.

How bad is running the car. Normal drive while my valve cover is ready to install ?

I drove with this issue in my 335 for a few weeks in limp mode until I got it fixed.

TideMD · 12-24-2019, 02:28 PM

Quote:

Originally Posted by yayaya

Had this on my N55 335xi it was valve cover gasket.

This. Just had my valve cover and gasket replaced for the exact same sound, which also was "fixed" by loosening the oil cap.

Took it to the dealer after noticing the sound during road trip, drove ~500 miles between identifying the issue and having it fixed. Rode the car per my usual style and never had any issues. The sound actually goes away once RPMs rise above 2-2.5k.

yayaya · 12-24-2019, 05:01 PM

Quote:

Originally Posted by TideMD

Quote:

Originally Posted by yayaya

Had this on my N55 335xi it was valve cover gasket.

This. Just had my valve cover and gasket replaced for the exact same sound, which also was "fixed" by loosening the oil cap.

Took it to the dealer after noticing the sound during road trip, drove ~500 miles between identifying the issue and having it fixed. Rode the car per my usual style and never had any issues. The sound actually goes away once RPMs rise above 2-2.5k.

Good to know my M3 might suffer from the same issue as my old 335. Wonder how common it is. How many miles on your F8x?

franzzz · 12-25-2019, 02:27 AM

Mine after 70.000Km

STOCK car. (Only CS software)

The italy price for engine cover (Mahle) was 450 EURO

Michell · 12-25-2019, 01:11 PM

Quote:

Originally Posted by AlpsRider

So the noise stops when you remove the oil filler cap? If so then it could be a vacuum leak somewhere from the emissions stuff.

Where exactly the sound come from?

Michell · 12-25-2019, 01:12 PM

Quote:

Originally Posted by yayaya

I drove with this issue in my 335 for a few weeks in limp mode until I got it fixed.

Do you remember where the sound come from?

yayaya · 12-25-2019, 06:25 PM

Quote:

Originally Posted by Michell

Quote:

Originally Posted by yayaya

I drove with this issue in my 335 for a few weeks in limp mode until I got it fixed.

Do you remember where the sound come from?

On my N55 Right side of motor below airbox.

08-18-2019, 10:29 AM	#1
franzzz Captain 144 Rep 932 Posts Drives: BMW M4 Join Date: Feb 2010 Location: ITALY iTrader: (0)	BMW M4 S55 noise when hot Hi My engine sound strange when hot (after 1.40sec in idle) any idea ? __________________ BMW F82 M4 Black MHD CS Map - GTS DKG - Navi -Performance Brake RSL1 Pads - USB - DivX-DVD - Bluetooth - VoiceControl - Connect - Apps - Online - H&K - TrafficInfo - SpLimInfo - WhiteMerino- PDC - Cam - Adaptive Led - Antitheft - CP Steering- Performance ST - Adaptive CP Setup - GarageDoorOpen - Pipercross - Stock Exhaust - Mdrivers Pack - 437M Wheels
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08-18-2019, 10:30 AM	#2
franzzz Captain 144 Rep 932 Posts Drives: BMW M4 Join Date: Feb 2010 Location: ITALY iTrader: (0)	__________________ BMW F82 M4 Black MHD CS Map - GTS DKG - Navi -Performance Brake RSL1 Pads - USB - DivX-DVD - Bluetooth - VoiceControl - Connect - Apps - Online - H&K - TrafficInfo - SpLimInfo - WhiteMerino- PDC - Cam - Adaptive Led - Antitheft - CP Steering- Performance ST - Adaptive CP Setup - GarageDoorOpen - Pipercross - Stock Exhaust - Mdrivers Pack - 437M Wheels
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08-18-2019, 12:05 PM	#3
AlpsRider Brigadier General 2876 Rep 3,841 Posts Drives: M2 Competition, LBB, 6MT Join Date: May 2015 Location: Earth iTrader: (0)	So the noise stops when you remove the oil filler cap? If so then it could be a vacuum leak somewhere from the emissions stuff.
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08-18-2019, 12:48 PM	#4
yayaya Second Lieutenant 105 Rep 263 Posts Drives: BMW 335xi E92 N55 Join Date: Dec 2016 Location: Midwest iTrader: (0)	Had this on my N55 335xi it was valve cover gasket.
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08-19-2019, 05:04 PM	#7
franzzz Captain 144 Rep 932 Posts Drives: BMW M4 Join Date: Feb 2010 Location: ITALY iTrader: (0)	Today i have visited my dealer. Wait for response and solution.
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08-19-2019, 07:00 PM	#8
JamesGames Major 1338 Rep 1,481 Posts Drives: E60 550i\|F82 M4\|F48 X1\|VA STi Join Date: Apr 2012 Location: SOCAL iTrader: (0)	Definitely crankcase pressure related since your sound goes away when you open the oil cap, my guess is a leak somewhere around the CCV/PCV or valve cover leaking somewhere.
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08-24-2019, 06:31 AM	#12
franzzz Captain 144 Rep 932 Posts Drives: BMW M4 Join Date: Feb 2010 Location: ITALY iTrader: (0)	Cover replaced : 11127846359 11377502022 Car now is perfect. __________________ BMW F82 M4 Black MHD CS Map - GTS DKG - Navi -Performance Brake RSL1 Pads - USB - DivX-DVD - Bluetooth - VoiceControl - Connect - Apps - Online - H&K - TrafficInfo - SpLimInfo - WhiteMerino- PDC - Cam - Adaptive Led - Antitheft - CP Steering- Performance ST - Adaptive CP Setup - GarageDoorOpen - Pipercross - Stock Exhaust - Mdrivers Pack - 437M Wheels
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12-24-2019, 10:37 AM	#13
Michell Enlisted Member 8 Rep 36 Posts Drives: M4 Join Date: Dec 2019 Location: Dominican Republic iTrader: (0)	How long do you run your car with that problem ? I have the same issue. And I don’t know if I can use the vehicle while valve cover is ready to install.
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12-25-2019, 02:27 AM	#19
franzzz Captain 144 Rep 932 Posts Drives: BMW M4 Join Date: Feb 2010 Location: ITALY iTrader: (0)	Mine after 70.000Km STOCK car. (Only CS software) The italy price for engine cover (Mahle) was 450 EURO __________________ BMW F82 M4 Black MHD CS Map - GTS DKG - Navi -Performance Brake RSL1 Pads - USB - DivX-DVD - Bluetooth - VoiceControl - Connect - Apps - Online - H&K - TrafficInfo - SpLimInfo - WhiteMerino- PDC - Cam - Adaptive Led - Antitheft - CP Steering- Performance ST - Adaptive CP Setup - GarageDoorOpen - Pipercross - Stock Exhaust - Mdrivers Pack - 437M Wheels
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