SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: FSS and Dash Warning

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Old Aug 6, 2021 | 01:27 PM
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'93 300ce's Avatar
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From: San Diego, CA or Sequim Washington USA
'95-E320 COUPE, 2000 SL500, 2002 ML320
FSS and Dash Warning

I am having a couple of issues on my 2000 SL500 vin WDBFA68F6YF193510.
After an oil change and battery replacement I tried to reset the FSS per owner's manual. The indicator for the B service is still active with -3 displayed. I've read some posts about having the doors closed, cycling the door locks, clearing and error codes, disconnecting the battery, reset the Radio and auto up window function and following the owner's manual procedure after each to no resolve. The car starts and runs. Any suggestions?

Maybe a second issue, during FSS reset process I noticed the dash warning lights all flash on for a split second when I turn the key to position 2 and then most extinguish except Check Engine and BAS/ESP, are they all suppose to stay on until the engine is running, like my W124? Am I missing something?
Thank you in advance for any help.
Best Regards
Ron
Sequim WA

Last edited by '93 300ce; Aug 6, 2021 at 01:29 PM.
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Old Aug 13, 2021 | 01:08 PM
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'93 300ce's Avatar
Thread Starter
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15 Year Member
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Joined: Mar 2008
Posts: 79
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From: San Diego, CA or Sequim Washington USA
'95-E320 COUPE, 2000 SL500, 2002 ML320
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Originally Posted by '93 300ce
I am having a couple of issues on my 2000 SL500 vin WDBFA68F6YF193510.
After an oil change and battery replacement I tried to reset the FSS per owner's manual. The indicator for the B service is still active with -3 displayed. I've read some posts about having the doors closed, cycling the door locks, clearing and error codes, disconnecting the battery, reset the Radio and auto up window function and following the owner's manual procedure after each to no resolve. The car starts and runs. Any suggestions?

Maybe a second issue, during FSS reset process I noticed the dash warning lights all flash on for a split second when I turn the key to position 2 and then most extinguish except Check Engine and BAS/ESP, are they all suppose to stay on until the engine is running, like my W124? Am I missing something?
Thank you in advance for any help.
Best Regards
Ron
Sequim WA
After some trouble shooting I found a loose connection on the back of the alternator, 5m nut was missing causing the intermittent issues with warning lights and preventing FSS from resetting.



My only remaining error code is P0100 that will not clear, this is for an other topic.

Thanks again to the group.
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