Please Help ! 07 E70 3.0si tapping/ticking (is my motor toast?)

Leodalvar · #1 08-02-2018, 10:25 PM

Hi, My engine has recently developed a tapping sound that sounds almost like a card in bike spokes. I've searched and searched and haven't come across another that sounds like this. All other n52 tapping ticking sound bites have a solid idle mine sounds more broken up like rapid surging. I'm at my wits end and need some help narrowing it down.

Details:
My X5 has 130k on the dash
the sound follows the rpm
I can hear the sound on start up
car starts quick but hard
Can't feel any power loss - I hit the gas and she goes.
rpms dip when coming to a stop with ac off.
sound is constant from start up to shutdown

I've changed both cam position sensors
cleaned vanos solenoid and swapped
cleaned MAF
changed ignition coils on 5 and 6
changed all plugs
changed pre cat lambda bank 2

codes I currently have but may be unrelated (not sure)
system too lean bank 2
multiple misfire bank 2

Valve cover leaking (replacing this week)

I do have an aftermarket warranty (wynns) but I need my car for work so dropping it off for days isnt an option unless totally necessary.

I've embedded a video of the sound (I think)
Please help.
https://youtu.be/ecRb3zuWxXA

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ard · #2 08-03-2018, 12:40 AM

Quote:

Originally Posted by Leodalvar

but I need my car for work so dropping it off for days isnt an option unless totally necessary.
]

Welp, eventually it wont be a choice

why not have a real mechanic look at it? futzing with codes is one thing, but engine noises can be a whole different $tory.

AlpineX · #3 08-03-2018, 12:45 AM

Timing chain tensioner? hurry before it breaks your guides or worse (if thats the issue). Specify where from the engine the sound is coming from. Front, rear, lower, upper....

gatojurko · #4 08-03-2018, 01:23 AM

Chain may be....

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Leodalvar · #5 08-03-2018, 05:42 AM

@Ard yeah I'm bringing it in for the valve cover. I told my mechanic about the sound he said he'd check it out. I'm just trying to make sure the sound isnt from something I can do myself to avoid a tear down and the down time.

@alpinex thank you that's an easy diy that I should probably do anyway I'm going to give it a shot.

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Leodalvar · #6 08-03-2018, 05:45 AM

Oh, and it sounds like it's coming from the front area of the motor. I'm going to pick up a stethoscope to narrow it down.

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Leodalvar · #7 08-03-2018, 09:20 AM

Looks like it's the dealer after all... The motor basically spilled its guts out on the way to work this morning. Good thing for road side and warranties. Let's see how this turns out.

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