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

SL/R230: 2009 sl550 battery light on

Old May 3, 2022 | 11:04 PM
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2009 sl550
2009 sl550 battery light on


Hi have 13 Fault with the motor not running and 14 1/2 with the motor running on the front and back battery

Hi My name is Paul Fazzino

i am new to to this site would appreciate some help thanks
I have a 2009 sl550 bought it new and it has 11k miles on it
I replaced the starter battery two months ago, it was barley starting.
I disconnected the back battery, and installed the new starter battery and reconnected the back battery,
But the battery red light was still coming and now replaced the back battery. but the, red battery light still on.

Disconnected the back battery and the front battery let it sit for 15 minuets reconnected the front battery and then the back battery
but still have the red battery light.

opened the F52 the fuses F52f2 & F52f1 both have voltage on both end witch make me think there ok they are tight and look good.
Should i replace them any ways ?


Thanks
Paul Fazzino


Erased all the codes and ended up with this too complicated for me


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Last edited by zetor123; May 4, 2022 at 01:37 PM.
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Old May 4, 2022 | 01:38 AM
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bone stock E55 AMG
moved to R230 forum...
bad alternator?
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Old May 4, 2022 | 04:18 AM
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2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Erase fault code(s) with a scanner?
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