M4 Making a dull pinging sound

lukej · 09-23-2016, 09:00 AM

I have a 2016 M4 DCT competition package ,,bought in April,, it's got 1900 miles ,,did the break in right.. per, BMW.

When the is cold the car is making a very dull pinging noise, when the car is under a light load on the gas , about 3000 RPMs higher gears.. It's a real fast dull ping ping does not change with RPMs just comes on with a light load on the gas then goes away about 4000 RPMs .. You can get it to come and go if you just put it in third gear modulate the gas between 3000 and 4000 RPM , it almost sounds like some sort of harmonics going on ....Sounds like it's coming for deep in the engine or center of the fire wall..

When the car is up to temp,, it goes away,, car runs, fine pulls hard, shift fine.

The dealer in KC are scratching their heads they have a specialist coming from Chicago to drive the car and see if it's coming from the drivetrain

Has anybody heard of this problem in there in M cars..

Thanks

DE Urlaub · 09-23-2016, 09:08 AM

Most likely not detonation given what you said, but what fuel are you using? Octane?

It is not unheard of to have more chatter from your valve train when it is cold and then it goes away when warmed up. Does it happen after car is completely warmed up?

lukej · 09-23-2016, 09:10 AM

Quote:

Originally Posted by DE Urlaub

Most likely not detonation given what you said, but what fuel are you using? Octane?

It is not unheard of to have more chatter from your valve train when it is cold and then it goes away when warmed up. Does it happen after car is completely warmed up?

The dealer doesn't think it's valvetrain related and I use premium gas in it .. The dealers thinking more drivetrain related but they don't know..

colossians323 · 09-24-2016, 12:21 AM

Lemon?

NewM3driver · 09-24-2016, 06:31 AM

If you are unhappy with the car tell them. BMW is great with offering trade assists if they know or suspect an issue with the car. No argument, they just bend over backwards to make you happy.

lukej · 09-24-2016, 06:47 PM

Quote:

Originally Posted by NewM3driver

If you are unhappy with the car tell them. BMW is great with offering trade assists if they know or suspect an issue with the car. No argument, they just bend over backwards to make you happy.

That's good to know,, it's my first BMW,, and if it's the drivetrain, with less that 2000 miles on it's not going to be good...

S65V8 · 09-24-2016, 06:59 PM

TPG Crank Hub will solve this.

CaryTheLabelGuy · 09-24-2016, 08:03 PM

Quote:

Originally Posted by SROC5

TPG Crank Hub will solve this.

lol. Don't start that!

lukej · 09-24-2016, 08:31 PM

Quote:

Originally Posted by SROC5

TPG Crank Hub will solve this.

You have my curiosity now,, tell me more about this TPG Crank Hub

I know it has to do with the crank.. But???

SakhirM4 · 09-24-2016, 08:45 PM

Quote:

Originally Posted by lukej

You have my curiosity now,, tell me more about this TPG Crank Hub

I know it has to do with the crank.. But???

http://f80.bimmerpost.com/forums/sho....php?t=1226184
http://f80.bimmerpost.com/forums/sho....php?t=1284026
http://f80.bimmerpost.com/forums/sho....php?t=1233006

lukej · 09-24-2016, 08:58 PM

Quote:

Originally Posted by SakhirM4

http://f80.bimmerpost.com/forums/sho....php?t=1226184
http://f80.bimmerpost.com/forums/sho....php?t=1284026
http://f80.bimmerpost.com/forums/sho....php?t=1233006

Ok you guys you are scaring me now. Don't think that's what's going on it runs ok just the noise when cold.. I'll know next week,, I'll keep you all posted...

GrussGott · 09-25-2016, 11:41 AM

Quote:

Originally Posted by lukej

Ok you guys you are scaring me now. Don't think that's what's going on it runs ok just the noise when cold.. I'll know next week,, I'll keep you all posted...

Maybe it's not "ping" but "bing"?

Sorry, I know, not helping, but if you don't have lights no worries: you're covered under warranty. Worse case, put a rock on the accelerator and point it toward the nearest cliff.

lukej · 09-25-2016, 05:34 PM

Quote:

Originally Posted by GrussGott

Maybe it's not "ping" but "bing"?

Sorry, I know, not helping, but if you don't have lights no worries: you're covered under warranty. Worse case, put a rock on the accelerator and point it toward the nearest cliff.

Yeah no lights,, I do have a rock! Hum!,! I wait see what BMW Says....

docmfg · 09-27-2016, 08:38 AM

Quote:

Originally Posted by NewM3driver

If you are unhappy with the car tell them. BMW is great with offering trade assists if they know or suspect an issue with the car. No argument, they just bend over backwards to make you happy.

LOL!, Tell that to this guy :
http://www.bimmerforums.com/forum/sh...er-Lemon-Seven

lukej · 09-29-2016, 10:08 PM

Well a update after looking over the car for several days BMW finally had a tech rep come in and they found the problem. The car has 1900 miles they drained the rear diff and said it was like molasses and it had metal shavings.. They did the required 1200 mile break in and they change the rear diff then and said that the rear diff fluid was normal.

BMW ordered a new rear diff..

BMW said there's a service bulletin on these rear ends but my Vin number was not on that service bulletin but BMW is going to cover it,,,and said that they'll be updating the Vin numbers now. I will get the service bulletin number and pass it on..

I'm bummed out.. I never even drove the car that hard... just normal stuff.. it's the DCT transmission..

lukej · 10-03-2016, 10:20 PM

Quote:

Originally Posted by lukej

Well a update after looking over the car for several days BMW finally had a tech rep come in and they found the problem. The car has 1900 miles they drained the rear diff and said it was like molasses and it had metal shavings.. They did the required 1200 mile break in and they change the rear diff then and said that the rear diff fluid was normal.

BMW ordered a new rear diff..

BMW said there's a service bulletin on these rear ends but my Vin number was not on that service bulletin but BMW is going to cover it,,,and said that they'll be updating the Vin numbers now. I will get the service bulletin number and pass it on..

I'm bummed out.. I never even drove the car that hard... just normal stuff.. it's the DCT transmission..

Well a update,, BMW called me today and said the rear diff will take three weeks,
Here is the kicker,, they said they talk to BMW tech rep and he said put new fluid in it let the customer have the car back to to drive the car as he wants to and will put a new diff in it when it gets here..

Does that sound odd to you guys they would let me have the car back knowing that the rear end is making metal? By the way it is a leased car.

F80 ZCP · 10-04-2016, 03:00 PM

Quote:

Originally Posted by lukej

Well a update,, BMW called me today and said the rear diff will take three weeks,
Here is the kicker,, they said they talk to BMW tech rep and he said put new fluid in it let the customer have the car back to to drive the car as he wants to and will put a new diff in it when it gets here..

Does that sound odd to you guys they would let me have the car back knowing that the rear end is making metal? By the way it is a leased car.

Customers whose cars were included in the rear differential recall were allowed to take delivery of their cars upon signing the disclosure form. I am one of the customers whose car is included in the recall. I am still waiting for the new rear differential.

09-23-2016, 09:00 AM	#1
lukej Lieutenant 387 Rep 544 Posts Drives: 2020 M4 Comp, Join Date: Apr 2016 Location: Midwest iTrader: (0)	M4 Making a dull pinging sound I have a 2016 M4 DCT competition package ,,bought in April,, it's got 1900 miles ,,did the break in right.. per, BMW. When the is cold the car is making a very dull pinging noise, when the car is under a light load on the gas , about 3000 RPMs higher gears.. It's a real fast dull ping ping does not change with RPMs just comes on with a light load on the gas then goes away about 4000 RPMs .. You can get it to come and go if you just put it in third gear modulate the gas between 3000 and 4000 RPM , it almost sounds like some sort of harmonics going on ....Sounds like it's coming for deep in the engine or center of the fire wall.. When the car is up to temp,, it goes away,, car runs, fine pulls hard, shift fine. The dealer in KC are scratching their heads they have a specialist coming from Chicago to drive the car and see if it's coming from the drivetrain Has anybody heard of this problem in there in M cars.. Thanks
	Appreciate 0 Tweet Quote

09-23-2016, 09:08 AM	#2
DE Urlaub Lieutenant 190 Rep 437 Posts Drives: '71 Pinzgauer 710K Join Date: Mar 2016 Location: Ohio iTrader: (0)	Most likely not detonation given what you said, but what fuel are you using? Octane? It is not unheard of to have more chatter from your valve train when it is cold and then it goes away when warmed up. Does it happen after car is completely warmed up? __________________ *Our Adventure!: F80 SSII/Amaro Brown w/ZCP/6MT/CCB: Indy Day '16 Welt ED!*
	Appreciate 0 Quote

09-24-2016, 12:21 AM	#4
colossians323 Second Lieutenant 114 Rep 214 Posts Drives: 2020 M4 SO Join Date: May 2016 Location: Somewhere in time iTrader: (0)	Lemon?
	Appreciate 0 Quote

09-24-2016, 06:31 AM	#5
NewM3driver Colonel 1110 Rep 2,007 Posts Drives: 2017 M3 ZCP Join Date: Nov 2008 Location: CT iTrader: (0)	If you are unhappy with the car tell them. BMW is great with offering trade assists if they know or suspect an issue with the car. No argument, they just bend over backwards to make you happy.
	Appreciate 0 Quote

09-24-2016, 06:59 PM	#7
S65V8 _ 808 Rep 3,160 Posts Drives: ... Join Date: Apr 2009 Location: Los Angeles, CA iTrader: (10)	TPG Crank Hub will solve this.
	Appreciate 1 Arcades8174.00 Quote

09-29-2016, 10:08 PM	#15
lukej Lieutenant 387 Rep 544 Posts Drives: 2020 M4 Comp, Join Date: Apr 2016 Location: Midwest iTrader: (0)	Update,,, Not Good Well a update after looking over the car for several days BMW finally had a tech rep come in and they found the problem. The car has 1900 miles they drained the rear diff and said it was like molasses and it had metal shavings.. They did the required 1200 mile break in and they change the rear diff then and said that the rear diff fluid was normal. BMW ordered a new rear diff.. BMW said there's a service bulletin on these rear ends but my Vin number was not on that service bulletin but BMW is going to cover it,,,and said that they'll be updating the Vin numbers now. I will get the service bulletin number and pass it on.. I'm bummed out.. I never even drove the car that hard... just normal stuff.. it's the DCT transmission.. __________________ 1."Luck" is an excuse for people that have failed at their mission to do something! (Allan McNish) 2. I’m not an (EXPERT) I’m just here with an opinion. So don’t hate me. (lukej)
	Appreciate 0 Quote