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SL55/63/65/R230 AMG: Battery Issue

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Old May 28, 2013 | 07:32 AM
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SL 55
Battery Issue
I own a MB SL55 amg 2004. I took the car to get a touch up on the paint. When I picked up the car a red battery light with a Plus and minus sign lit up. Also a message that I should drive the car to mb shop immediately. Then the temp gauge went up. I stopped the car recharged the new battery, but the same problem came up again. Any suggestion?
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Old May 28, 2013 | 10:26 AM
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07' SL65, 04' E55, 03' Evo8, 08' GSXR, DSM's...
I think the first thing i would check is the drive belt since you seem to have a charging and cooling problem at the same time. I would definitely have the car checked out asap. Good luck.

Aaron
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Old May 28, 2013 | 11:22 AM
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Yes. One of your plastic pulleys is toast and your belt is laying on the floor in the engine compartment.
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Old May 28, 2013 | 11:46 AM
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This morning after I posted here I checked again both batteries voltage and both were low. Even with the car turned on, both of them gave a low voltage. At least the belts seemed ok from what I could see. It is on its way to the workshop so I will let you know.
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Old May 28, 2013 | 11:56 AM
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Both batteries low means no charging. Water temp goes up means no water pump. Both are driven by a belt. It has to be a slipping/ derailed/ whatever belt not turning the accessories.
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Old May 28, 2013 | 12:44 PM
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That's what I was thinking. Even though normally when a belt is slipping or derailed it would make a noticeable sound. This morning it sounded as usual.
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Old Jun 4, 2013 | 11:08 PM
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I had the same problems last summer. Replaced a new alternator and problems solved.
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Old Jun 5, 2013 | 09:02 AM
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very basic electrical problems are easy to solve. almost every auto parts store has free electrical diagnostic service. Because they can sell batteries and alternators when they find something bad.
Electrical diagnostic units hook up to the car and determine if the battery is good or bad, and then determine if the alternator is good or bad.
easy 5 minute job.
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Old Jun 15, 2013 | 08:54 AM
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thanks new alternator solved the problem
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Old Jun 16, 2013 | 11:02 PM
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You sure it solved the overheating problem?
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Old Jun 17, 2013 | 06:34 AM
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Yes, it is working perfect right now.
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