2018 M550i HK Audio No Subs?!?

DaWhole9 · 12-28-2024, 12:56 PM

Pre LCI M550i with Harmon Kardon audio system and I have no deep low bass anymore. I have rebooted the iDrive but no change. Any ideas on what to look for?

Mag_Ice_DL · 12-29-2024, 12:25 AM

There are few similar posts on this issue in other groups: https://g05.bimmerpost.com/forums/sh....php?t=1776741
I had similar situation when I was getting into car multiple times switching the music on while I am cleaning the car without starting the engine. t looks it just put all heavier consumers into sleep. RAM woke up once I started the engine.

Igor_M5 · 12-29-2024, 07:51 PM

Quote:

Originally Posted by DaWhole9

Pre LCI M550i with Harmon Kardon audio system and I have no deep low bass anymore. I have rebooted the iDrive but no change. Any ideas on what to look for?

Quote:

Originally Posted by Mag_Ice_DL

There are few similar posts on this issue in other groups: https://g05.bimmerpost.com/forums/showthread.php?t=1776741
I had similar situation when I was getting into car multiple times switching the music on while I am cleaning the car without starting the engine. t looks it just put all heavier consumers into sleep. RAM woke up once I started the engine.

RAM was only offered on 2020+ for G30

OP’s issue is most likely amplifier related. More than likely the channels burned out from over heating or possible water intrusion.

12-28-2024, 12:56 PM	#1
DaWhole9 First Lieutenant 420 Rep 313 Posts Drives: 2018 BMW M550i, 1976 BMW 2002 Join Date: Aug 2022 Location: Newport Beach, Ca. iTrader: (0)	2018 M550i HK Audio No Subs?!? Pre LCI M550i with Harmon Kardon audio system and I have no deep low bass anymore. I have rebooted the iDrive but no change. Any ideas on what to look for? __________________ 2018 M550i\|Alpine White\|MSS Springs\|BMW 789M reps\|M5 Competition Exhaust\| 1976 BMW 2002\|Fjord Blue\|Stage II Ireland Suspension\|10:1 Compression\|292 Cam\|5 Speed\| 1964 Volvo 122S Wagon\|Rusty
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12-29-2024, 12:25 AM	#2
Mag_Ice_DL Private 30 Rep 53 Posts Drives: 530 xDrive Join Date: Sep 2022 Location: Estonia iTrader: (0)	There are few similar posts on this issue in other groups: https://g05.bimmerpost.com/forums/sh....php?t=1776741 I had similar situation when I was getting into car multiple times switching the music on while I am cleaning the car without starting the engine. t looks it just put all heavier consumers into sleep. RAM woke up once I started the engine. __________________ Regards, Den Last edited by Mag_Ice_DL; 12-29-2024 at 01:27 AM..
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