BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)


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      08-04-2019, 04:37 PM   #1
Professional Hack

Drives: 2009 135i
Join Date: Dec 2017
Location: St Louis

iTrader: (4)

what is this noise

cross-posting from e90:

trying to diagnose this sound coming from the engine.

the sound starts at about 5 seconds into the video, but almost 4 minutes after engine start.

some relevant background info:

-had a serpentine belt failure in June
-removed belt pieces from pan and pickup
-replaced oil pan gasket
-installed a front main seal protective cover
-added oil accumulator with check valve
-no codes present in mhd
MCS 1WNR Dampers | Ground Control Camber Plates | E90 M3 front control arms| E90 M3 front tension arm w/ Turner monoball bearings | E90 M3 Steering rack conversion | SPL Adjustable Outer Tie Rod Ends | M3 Rear Camber Arms | SPL Adjustable Rear Toe Arms | M3 Front Caliper Conversion | 275/35/18 Toyo RA1s | 18x9.5ET22 Apex EC-7ís | Rogue Engineering trans mounts | Coolerworks shifter | mFactory LSD | AIM EVO4S with GS Dash |
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      08-05-2019, 07:03 PM   #2
iminhell1's Avatar

Drives: 2010 SG 135i auto
Join Date: May 2015
Location: Darwin, MN

iTrader: (1)

Sounds rod bearing to me
FBO (RB EVO inlets, Phoenix Racing 7.5" race, CP-e relocate / Tial, 1320 DP's, Berk mids, Custom E tune, XHP Stg III)
11.480 @ 121, 3,600#
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