Engine making sounds

ryank382 · 03-15-2021, 06:39 PM

Hi guys can you help me diagnose this sound?

Engine only has 40k miles

https://youtube.com/shorts/Dmq1wlAQu3s

https://youtube.com/shorts/9Qo8Nd2F82U

Gamb1t · 03-16-2021, 02:19 PM

I cringed after the first 5 secs and closed the video. Sounds expensive.

Our03z4 · 03-16-2021, 03:00 PM

Sounds like a rod knocking to me.

ryank382 · 03-16-2021, 03:33 PM

That's not good news gents, was really hoping for "that's def cam bolts"... sigh, here we go

Huz-Z · 03-16-2021, 03:34 PM

I’d strongly recommend that you not start or turn over the engine again until this is repaired properly.

elerner61 · 03-16-2021, 03:38 PM

Can't add to what the others have said other than take it to a shop that has experience working on S54 engines.

ryank382 · 03-16-2021, 03:53 PM

Yea having it towed to Autocouture. Thanks for the advice everyone

Our03z4 · 03-16-2021, 04:23 PM

Quote:

Originally Posted by ryank382

That's not good news gents, was really hoping for "that's def cam bolts"... sigh, here we go

I mean anything is possible but it sounds like lower engine and something I'm dealing with with a non-BMW I have. Good luck to ya!

Huz-Z · 03-16-2021, 06:14 PM

Quote:

Originally Posted by Our03z4

I mean anything is possible but it sounds like lower engine and something I'm dealing with with a non-BMW I have. Good luck to ya!

Fingers crossed that this gets sorted quickly, easily and cheaply!

ryank382 · 04-05-2021, 04:44 PM

Update: confirmed cam bolts. So grateful I heard the noise, didn't risk driving it and had it towed

XMetal · 04-05-2021, 07:02 PM

Wowie - what year is your car? Do these bolts have the hex or torx head?

ryank382 · 04-05-2021, 09:37 PM

Quote:

Originally Posted by XMetal

Wowie - what year is your car? Do these bolts have the hex or torx head?

Shop referred to them as allen head bolts. 2006 with only 41k miles

Huz-Z · 04-06-2021, 07:47 AM

Ok so a relatively minor repair and all is good? If so that’s great news. I was worried that this was a major issue. Very glad to hear that it’s not!

ryank382 · 04-06-2021, 08:08 AM

Quote:

Originally Posted by Huz-Z

Ok so a relatively minor repair and all is good? If so that’s great news. I was worried that this was a major issue. Very glad to hear that it’s not!

Yup, updating vanos parts, beisan anti rattle parts and such. Thanks man. Figured I'd update the thread in case anyone else hears the same noises

TyzToyz · 04-06-2021, 08:54 PM

Ok, I'll bite. So, these bolts hold the cam drive pulley onto the camshaft? And how did they wind up like this?
Sorry if I missed the back story.

Tye

XMetal · 04-06-2021, 09:27 PM

Quote:

Originally Posted by TyzToyz

Ok, I'll bite. So, these bolts hold the cam drive pulley onto the camshaft? And how did they wind up like this?
Sorry if I missed the back story.

Tye

google S54 cam bolt shearing and you'll understand

Here's a video showing a similar failure

TyzToyz · 04-07-2021, 10:56 AM

Thank-You XMetal, is this a problem that only relates to the M series S54 or is the N52 affected by this problem also?
Learning everyday.

Tye

XMetal · 04-07-2021, 01:07 PM

It appeared to be an S54 only issue as far as I know

03-15-2021, 06:39 PM	#1
ryank382 First Lieutenant 102 Rep 346 Posts Drives: E92 M3, Z4 M Roadster Join Date: Aug 2011 Location: New Jersey iTrader: (0)	Hi guys can you help me diagnose this sound? Engine only has 40k miles https://youtube.com/shorts/Dmq1wlAQu3s https://youtube.com/shorts/9Qo8Nd2F82U Last edited by ryank382; 03-15-2021 at 08:36 PM..
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03-16-2021, 02:19 PM	#2
Gamb1t Major 598 Rep 1,343 Posts Drives: 330i,X1,Z4,Solstice GXP, RX-8 Join Date: Aug 2015 Location: Canukistan iTrader: (0)	I cringed after the first 5 secs and closed the video. Sounds expensive.
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03-16-2021, 03:00 PM	#3
Our03z4 Captain 1720 Rep 688 Posts Drives: 2008 BMW Z4 3.0si Coupe, Join Date: Nov 2016 Location: USA iTrader: (0)	Sounds like a rod knocking to me.
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03-16-2021, 03:33 PM	#4
ryank382 First Lieutenant 102 Rep 346 Posts Drives: E92 M3, Z4 M Roadster Join Date: Aug 2011 Location: New Jersey iTrader: (0)	That's not good news gents, was really hoping for "that's def cam bolts"... sigh, here we go
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03-16-2021, 03:34 PM	#5
Huz-Z Brigadier General 852 Rep 4,058 Posts Drives: Z4 3.0si, 328 XDrive, X5 35i Join Date: Aug 2009 Location: Canada iTrader: (0)	I’d strongly recommend that you not start or turn over the engine again until this is repaired properly.
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03-16-2021, 03:38 PM	#6
elerner61 Major 157 Rep 1,107 Posts Drives: '07 Z4M Roadster Join Date: May 2011 Location: Mount Kisco, NY iTrader: (0)	Can't add to what the others have said other than take it to a shop that has experience working on S54 engines.
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03-16-2021, 03:53 PM	#7
ryank382 First Lieutenant 102 Rep 346 Posts Drives: E92 M3, Z4 M Roadster Join Date: Aug 2011 Location: New Jersey iTrader: (0)	Yea having it towed to Autocouture. Thanks for the advice everyone
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04-05-2021, 04:44 PM	#10
ryank382 First Lieutenant 102 Rep 346 Posts Drives: E92 M3, Z4 M Roadster Join Date: Aug 2011 Location: New Jersey iTrader: (0)	Update: confirmed cam bolts. So grateful I heard the noise, didn't risk driving it and had it towed Attached Images
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04-05-2021, 07:02 PM	#11
XMetal Colonel 1148 Rep 2,877 Posts Drives: Anything Join Date: Apr 2010 Location: SoCal iTrader: (0) Garage List 2008 Z4M Coupe [10.00] 2018 Audi S3 [0.00] 2004 X5 [8.50]	Wowie - what year is your car? Do these bolts have the hex or torx head?
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04-06-2021, 07:47 AM	#13
Huz-Z Brigadier General 852 Rep 4,058 Posts Drives: Z4 3.0si, 328 XDrive, X5 35i Join Date: Aug 2009 Location: Canada iTrader: (0)	Ok so a relatively minor repair and all is good? If so that’s great news. I was worried that this was a major issue. Very glad to hear that it’s not!
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04-06-2021, 08:54 PM	#15
TyzToyz Private 21 Rep 50 Posts Drives: 2008 BMW Z4 3.0si Join Date: Jan 2021 Location: Calgary, AB Canada iTrader: (0)	Ok, I'll bite. So, these bolts hold the cam drive pulley onto the camshaft? And how did they wind up like this? Sorry if I missed the back story. Tye
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04-07-2021, 10:56 AM	#17
TyzToyz Private 21 Rep 50 Posts Drives: 2008 BMW Z4 3.0si Join Date: Jan 2021 Location: Calgary, AB Canada iTrader: (0)	Thank-You XMetal, is this a problem that only relates to the M series S54 or is the N52 affected by this problem also? Learning everyday. Tye
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04-07-2021, 01:07 PM	#18
XMetal Colonel 1148 Rep 2,877 Posts Drives: Anything Join Date: Apr 2010 Location: SoCal iTrader: (0) Garage List 2008 Z4M Coupe [10.00] 2018 Audi S3 [0.00] 2004 X5 [8.50]	It appeared to be an S54 only issue as far as I know __________________
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