Tick on engine shut off after rod bearings

[imtylre]

I just did the rod bearings on my 09 115k mile m3.

I removed both engine belts with anticipation of replacing them, but could not find belts locally so i threw on original pulleys and belt.

The car runs great but on engine shut off, 5-8 seconds later very consistently there is a singular clink noise.

I also have the code: P1748
Here is a link to the audio file: https://file.io/uuTwBxIgINY4

Any thoughts what this could be?

[imtylre]

Seems pretty unrelated to bearings, have driven the car 50 miles so far and it sounds great overall.

I noticed going into accessory mode will create pretty much the same clink. Cleared the code and p1748 never came back. Pretty unbothered overall, but I wish i knew what it was.

[sergbaja5t]

I did a oilfilter housing gasket repair, and fired up the car with the plenium on, wide open itb's. After I shut off the car, the actuators do this twitch motion, a very loud "tick". Maybe this is your issue.

[imtylre]

Originally Posted by sergbaja5t

I did a oilfilter housing gasket repair, and fired up the car with the plenium on, wide open itb's. After I shut off the car, the actuators do this twitch motion, a very loud "tick". Maybe this is your issue.

I'm not sure im following. You think shutting off the car and the clink is just the actuators doing their final close?

[sergbaja5t]

Originally Posted by imtylre

I'm not sure im following. You think shutting off the car and the clink is just the actuators doing their final close?

Yes I believe so.

[tdott]

What does this have to do with rod bearings?

Sounds unrelated.

[imtylre]

In my mind it's completely related to the rod bearing job I just did. New noise pops up after half the car is disassembled and reassembled, why would I not mention I did all that lol.

However I've just started ownership of this car so it could have always been there.

[imtylre]

Originally Posted by sergbaja5t

Yes I believe so.

I'll mess around with turning off the valves exposed and shut it off. A visual confirmation would set me at ease, thanks