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      09-26-2022, 09:02 PM   #1
Graves
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So, I've been doing days of research on the forums and found multiple threads, however, most date back to 2019. Realizing it could be a plethora of things, any sort of solid answer? I read lifter tick, wastegate rattle, injectors, etc. it's not injectors, not convinced it could be the wastegate. I just changed the oil 3 days ago (5w30 BMW Twin Power), checked the catch can, oil filter and fished around inside the oil, no metal shavings, etc. just trying to be realist before I have someone tear into the motor. 2018 w/22k miles, BM3 stage 2, CH done, CBC done. No fault codes. I should note the car sits for a month or so at a time. Might just need to drive it more to keep some oil up top.

Video: https://youtube.com/shorts/HDh3ascXFvA?feature=share
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      09-26-2022, 10:26 PM   #2
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Vacuum pump or maybe a HPFP getting noisy? You can take a length of fish tank air line, stick one end near your ear, and use the other end to hunt for the noise source. HPFPs are on the right side below the plastic intake manifold, and the HPFPs sit on top of the vac pump.
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      09-27-2022, 08:47 AM   #3
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Quote:
Originally Posted by TopJimmy View Post
Vacuum pump or maybe a HPFP getting noisy? You can take a length of fish tank air line, stick one end near your ear, and use the other end to hunt for the noise source. HPFPs are on the right side below the plastic intake manifold, and the HPFPs sit on top of the vac pump.
The noise definitely comes from the passenger side near the top. You can hear it good just kneeling next to the tire. I'm gonna try a different oil and drive it to see if the noise goes away. My dumbass drove it Saturday knowing the noise was there but didn't listen after it was good and warm if it was still present.
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      09-27-2022, 05:44 PM   #4
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Hello
Itís the exhaust camshaft torque issue
Mine do this sometimes
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      09-27-2022, 06:51 PM   #5
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Quote:
Originally Posted by flo93100 View Post
Hello
It's the exhaust camshaft torque issue
Mine do this sometimes
Do you mean the Eccentric Shaft issue? I didn't think it was that sound.
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      09-27-2022, 07:10 PM   #6
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Originally Posted by flo93100 View Post
Hello
It’s the exhaust camshaft torque issue
Mine do this sometimes
Yeah. That's exactly what I think it is. Guess my car is just one of the ones with the issue. My car just fell out of warranty. It's tuned though so I doubt BMW would fix it.
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      09-28-2022, 11:59 PM   #7
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Quote:
Originally Posted by Graves View Post
Yeah. That's exactly what I think it is. Guess my car is just one of the ones with the issue. My car just fell out of warranty. It's tuned though so I doubt BMW would fix it.
Definitely sounds like the eccentric shaft/exhaust lifter issue. Had mine replaced at 20K, and now at 50K no issues at all. Attached is the parts list replaced.
Attached Images
File Type: pdf LINE OPCODE TECH TYPE HOURS.pdf (505.8 KB, 12 views)
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      09-29-2022, 02:51 PM   #8
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Some 5.0 mustang have this noise too
Liqui moly ceratec work good on the 5.0 to quiet the noise
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      09-29-2022, 08:58 PM   #9
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Quote:
Originally Posted by saikumarmeka View Post
Quote:
Originally Posted by Graves View Post
Yeah. That's exactly what I think it is. Guess my car is just one of the ones with the issue. My car just fell out of warranty. It's tuned though so I doubt BMW would fix it.
Definitely sounds like the eccentric shaft/exhaust lifter issue. Had mine replaced at 20K, and now at 50K no issues at all. Attached is the parts list replaced.
Don't see a parts list.
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      10-01-2022, 10:07 AM   #10
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Noise goes away after driving it. Kind of thought it might. Have a shop checking it out anyway.
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      10-02-2022, 10:44 AM   #11
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Quote:
Originally Posted by Graves View Post
Don't see a parts list.
I've attached it as a .pdf file to download.
File name "LINE OPCODE TECH TYPE HOURS".
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      10-08-2022, 09:26 PM   #12
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Took it in and had it fixed. Turned out it was just the shitty 5w30 BMW oil. Cam follower was stuck. I moved from Germany to Georgia and the heat/humidity is just too much for that oil. The mechanic scoped the motor and it was just filthy from Dante's Inferno. Did a 4 stage flush and 10w60 and it purrs like a kitten. Zero issues now. The guy said he runs it in all his cars and his E30, E39, and E92 race cars. Oil he used was Rowe. He did a bunch of tests through black stone on BMW oil and others. He found Rowe worked the best. Seems to have helped.
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