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2004 Mercedes e500 problems

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Old 08-12-2020, 09:15 PM
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E500
2004 Mercedes e500 problems
I have a 2004 Mercedes Benz e500 and I was wondering how to test and see if the auxilary battery relay is bad. Also how to test the battery control module and see if that's bad
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Old 08-15-2020, 01:21 PM
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W211sedan E500 4matic
Modules usually set off codes. Get the codes read.
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Old 08-15-2020, 01:24 PM
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Originally Posted by AlmostHappy
Modules usually set off codes. Get the codes read.
How could I test it other wise because I'm trying to avoid going to mercedes and spending tons of money just for them to see what's the problem.
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Old 08-16-2020, 02:24 PM
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1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
Originally Posted by Aj Freeman
How could I test it other wise because I'm trying to avoid going to mercedes and spending tons of money just for them to see what's the problem.
Save yourself significant time, money, and angst by purchasing a good scanner to diagnose yourself (the car). I use dedicated Merc iCarsoft. @ $150.
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Old 08-17-2020, 12:41 PM
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Originally Posted by Overheated
Save yourself significant time, money, and angst by purchasing a good scanner to diagnose yourself (the car). I use dedicated Merc iCarsoft. @ $150.
I don't think that type of scanner would be able to tell me whether my auxiliary battery relay or the battery control module is bad.
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Old 08-17-2020, 01:52 PM
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1998 E320 Wagon, 2003 W211 E500, 2003 W211 E500, 1999 W210 E55 AMG
Originally Posted by Aj Freeman
I don't think that type of scanner would be able to tell me whether my auxiliary battery relay or the battery control module is bad.
A good scanner will give you codes, voltage, and point to your problem. But if you have deep pockets, the dealer will be happy.
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