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SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Battery Light showing when battery is good!

     
Old Jan 1, 2023 | 11:02 AM
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SL500 Kleemann KL55
Battery Light showing when battery is good!
Hi there,
I have a 2005 SL500 which has a BATTERY warning light and visit workshop message on the dash. The battery has been meter read as has the alternator and both read healthy. Any ideas?
thanks in advance.
D
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Old Jan 1, 2023 | 03:18 PM
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95 SL600
There are 2 batteries, have you checked both?
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Old Jan 1, 2023 | 05:36 PM
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SL500 Kleemann KL55
Originally Posted by cdk4219
There are 2 batteries, have you checked both?
I have. Both starter and auxiliary are testing good!
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Old Jan 1, 2023 | 06:25 PM
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2005 SL 500 R230
First, try clearing the code and see if it comes back. The red battery message is a common appearance and doesn't definitively indicate trouble. You need a scan tool, such as the Foxwell or Autel, or someone who has one.
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Old Jan 1, 2023 | 08:30 PM
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SL500 Kleemann KL55
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Thanks Tom,
I will have a crack at that. Thanks for the insight.
Regards,

dominic
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Old Jan 4, 2023 | 06:11 AM
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Try checking your charging volts, should sit about 14.1 V
I used my iCarsoft and it cleared the red battery warning.
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