SL55/63/65/R230 AMG: battery question
MBWorld Fanatic!
Joined: Dec 2004
Posts: 4,268
Likes: 253
If you drive car daily, leave car for at least 2 days (dont drive it). After that enter engineering menu on the dash and check battery voltage. If below 12.5-12.7 volts- your battery is no good generally speaking. If voltage is above 12.5 it still could be bad, but it will require a battery tester to establish condition. Harbor freight has good cheap analog battery testers.
Last edited by alx; Nov 14, 2011 at 03:20 PM.
Junior Member
Joined: Feb 2009
Posts: 23
Likes: 0
From: Las Vegas, Nevada
2006 SL55 AMG
By pressing the correct sequence (reset ect.) the battery voltage will appear in the dash readout with car off (needs to be 12.5V or more) and you can start car and verify its charging (14.7V)
By letting the car sit for 2 days and seeing if voltage is above 12.5 will tell you if battery in trunk is good. As for the battery under the hood. Its for starting only, if it starts, its good
By letting the car sit for 2 days and seeing if voltage is above 12.5 will tell you if battery in trunk is good. As for the battery under the hood. Its for starting only, if it starts, its good
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MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Key to 2nd position - ON
Change DIC to show outside temp
Key off
Key to 1st position - ACC
Press reset button 3 times quickly and Voltage should be displayed
If you scroll through the DIC, you'll see options for:
Dynamometer Mode
Oil Level (in Liters)
Your VIN
And you can reset service interval
Can't remember what else is in there....
Change DIC to show outside temp
Key off
Key to 1st position - ACC
Press reset button 3 times quickly and Voltage should be displayed
If you scroll through the DIC, you'll see options for:
Dynamometer Mode
Oil Level (in Liters)
Your VIN
And you can reset service interval
Can't remember what else is in there....
Last edited by Benz-O-Rama; Feb 9, 2012 at 10:07 AM.
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Member
Joined: Aug 2011
Posts: 75
Likes: 2
From: Ontario, Canada
2005 SL55 amg, 2009 Lincoln MXZ, 2012 Dodge 2500 Limited
the BIG red battery logo come on and "visit workshop" illuminate's on my 05 sl55 when I accelerate ( punch it down ) MB suspected the rear battery was defective as I told them that the battery tender takes awhile to go green when plugged in compared to the front battery tender ( i figured this out after that they are two different sized battery ). Replaced the rear battery with new one and it never fixed the problem. MB says bring it in as they need to due 1.5hrs of checks to find problem. They think it may be a regulating module, a non-MB mechanic thinks it could be a pulley slipping. Anyone here have any thoughts of what may be causing this malfunction error?
Senior Member
Joined: Oct 2010
Posts: 419
Likes: 0
From: Los Angeles, CA
2010 Taco
the BIG red battery logo come on and "visit workshop" illuminate's on my 05 sl55 when I accelerate ( punch it down ) MB suspected the rear battery was defective as I told them that the battery tender takes awhile to go green when plugged in compared to the front battery tender ( i figured this out after that they are two different sized battery ). Replaced the rear battery with new one and it never fixed the problem. MB says bring it in as they need to due 1.5hrs of checks to find problem. They think it may be a regulating module, a non-MB mechanic thinks it could be a pulley slipping. Anyone here have any thoughts of what may be causing this malfunction error?
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Here's a vid
http://www.youtube.com/watch?v=xFHlDn-hw1s
