SL/R230: Door buzzer
Super Member
Joined: Aug 2017
Posts: 520
Likes: 203
From: Scottsdale AZ
2015 SL550 & 2012 S550 4matic
Agreed, VERY annoying. There are posts in this and other forums about this annoying chime. You will find workarounds and a bit about owners who have disassembled the cluster and cut wires to the chimer. Later command versions like my 2012 w220 have pleasantly only 1 chime an message on IC. If only that software would work on older command versions. Get to work pmercury you would be a hero..
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Thread Starter
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Joined: May 2018
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From: Hudson NH
2007 SL65, 2009 SL550, 1991 SL500
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Senior Member
Joined: May 2020
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From: North Carolina, USA
2004 SL500AMG, 2003 SL500 USA
Please let me know if this works for you.
I used a Mercedes proprietary scanner system that uses a multiplexor and personal computer. Menu structures are based on this system in most newer scanners. Using a system within STAR Diagnostics is a system called DAS.
TO STOP ANNOYING CHIME and BATTERY DRAIN, I think: (See the following post in this thread for DAS screen shot. (8) Annoying "Dont Forget Key Chime" | Page 2 | Mercedes-Benz Forum)
In DAS under Control Units, Information and Communication, Instrument Cluster with Maintenance…(ICM), Control Unit Adaptations, when asked toggle on your model year, hit F3, Special Equipment, I toggled Keyless Go to NOT PRESENT, pressed F3 function key twice, then pressed F5 to send code to the control unit. "Don't forget the key" warning in the dash is now gone. Because someone warned us in this thread, I did not toggle menu item “key dependency” to not present.
Because I could not get Keyless Go to work and the chime to cease when I was closing the door, I de-soldered the chime connection behind the instrument cluster long ago. I think making Keyless Go NOT PRESENT would have stopped the terrible chiming. I think this will stop the battery drain too.
I used a Mercedes proprietary scanner system that uses a multiplexor and personal computer. Menu structures are based on this system in most newer scanners. Using a system within STAR Diagnostics is a system called DAS.
TO STOP ANNOYING CHIME and BATTERY DRAIN, I think: (See the following post in this thread for DAS screen shot. (8) Annoying "Dont Forget Key Chime" | Page 2 | Mercedes-Benz Forum)
In DAS under Control Units, Information and Communication, Instrument Cluster with Maintenance…(ICM), Control Unit Adaptations, when asked toggle on your model year, hit F3, Special Equipment, I toggled Keyless Go to NOT PRESENT, pressed F3 function key twice, then pressed F5 to send code to the control unit. "Don't forget the key" warning in the dash is now gone. Because someone warned us in this thread, I did not toggle menu item “key dependency” to not present.
Because I could not get Keyless Go to work and the chime to cease when I was closing the door, I de-soldered the chime connection behind the instrument cluster long ago. I think making Keyless Go NOT PRESENT would have stopped the terrible chiming. I think this will stop the battery drain too.
