SL/R230: Dead battery issues
Thread Starter
Senior Member
Joined: Mar 2005
Posts: 345
Likes: 1
2005 SL500
Dead battery issues
Had a dead battery issues today. Parked the car, got back and engine couldn't turn over. SOS'ed MB assistance, and they sent tech out.
Tech replaced BOTH batteries (side note here, the batteries are covered under warranty if they fail the check. These apparently aren't regular batteries that you can get from Pep Boys, or at least that's what the tech side. Would have run me a couple of hundred dollars at least to replace outside the warrarnty). After the battery under the hood was replaced, the car fired up; like I mentioned, tech replaced the trunk too. After both were done, it gave me the fault message that the "Convenience features are unavailable". Also, i noticed that the car was acting weird; would drive normal for a bit, then act as if someone had placed it into netural even though it was in park. When it did "engage", felt like I was just driving in one gear; the manual-shift wasn't working.
I will be taking it into the dealership tomorrow. I just hope I don't get that no power situation when I am driving on the freeway. My question: is this related to the dead battery issue? Not sure why the tranny would be affected by a battery (maybe eletronically controlled)?
Tech replaced BOTH batteries (side note here, the batteries are covered under warranty if they fail the check. These apparently aren't regular batteries that you can get from Pep Boys, or at least that's what the tech side. Would have run me a couple of hundred dollars at least to replace outside the warrarnty). After the battery under the hood was replaced, the car fired up; like I mentioned, tech replaced the trunk too. After both were done, it gave me the fault message that the "Convenience features are unavailable". Also, i noticed that the car was acting weird; would drive normal for a bit, then act as if someone had placed it into netural even though it was in park. When it did "engage", felt like I was just driving in one gear; the manual-shift wasn't working.
I will be taking it into the dealership tomorrow. I just hope I don't get that no power situation when I am driving on the freeway. My question: is this related to the dead battery issue? Not sure why the tranny would be affected by a battery (maybe eletronically controlled)?
Member
Joined: Jul 2008
Posts: 213
Likes: 31
From: SW Florida
1995 SL500 - 2017 AMG GLC 43
Dual Battery System
It looks like the person who replaced the batteries did not follow the proper procedure. This from MB:
Dual Battery Service Tips
Normalization::
If batteries are disconnected or dead, the following systems should be checked for
normal operation. If systems are inoperative or erratic then normalization will have
to be performed.
Potential systems requiring normalizing are:
• ESP - electronic stability program
• AAC - automatic air conditioning (2 items)
• Left front seat (7 items)
• Right front seat (7 items)
• Steering wheel and mirrors
• Windows
• Tire pressure monitoring
Dual Battery Service Tips
• When reconnecting batteries you must follow an appropriate sequence
to avoid setting fault codes and / or activating prioritization feature
- Key removed from EIS
- Connect starter battery (G1/4) - FIRST
- Connect systems battery (G1) - LAST
• Charging batteries may not be possible if < 7 volts. Follow procedure
for using parallel battery method of charging (WIS AF 54.10-P-6005A)
• To start a Keyless Go equipped vehicle with a dead systems battery (G1) when
using only the KG chip card:
- Activate N82/1 ground contact by opening the EIS door
- Start vehicle as normal
Dual Battery Service Tips
Normalization::
If batteries are disconnected or dead, the following systems should be checked for
normal operation. If systems are inoperative or erratic then normalization will have
to be performed.
Potential systems requiring normalizing are:
• ESP - electronic stability program
• AAC - automatic air conditioning (2 items)
• Left front seat (7 items)
• Right front seat (7 items)
• Steering wheel and mirrors
• Windows
• Tire pressure monitoring
Dual Battery Service Tips
• When reconnecting batteries you must follow an appropriate sequence
to avoid setting fault codes and / or activating prioritization feature
- Key removed from EIS
- Connect starter battery (G1/4) - FIRST
- Connect systems battery (G1) - LAST
• Charging batteries may not be possible if < 7 volts. Follow procedure
for using parallel battery method of charging (WIS AF 54.10-P-6005A)
• To start a Keyless Go equipped vehicle with a dead systems battery (G1) when
using only the KG chip card:
- Activate N82/1 ground contact by opening the EIS door
- Start vehicle as normal
Thread Starter
Senior Member
Joined: Mar 2005
Posts: 345
Likes: 1
2005 SL500
It looks like the person who replaced the batteries did not follow the proper procedure. This from MB:
Dual Battery Service Tips
Normalization::
If batteries are disconnected or dead, the following systems should be checked for
normal operation. If systems are inoperative or erratic then normalization will have
to be performed.
Potential systems requiring normalizing are:
• ESP - electronic stability program
• AAC - automatic air conditioning (2 items)
• Left front seat (7 items)
• Right front seat (7 items)
• Steering wheel and mirrors
• Windows
• Tire pressure monitoring
Dual Battery Service Tips
• When reconnecting batteries you must follow an appropriate sequence
to avoid setting fault codes and / or activating prioritization feature
- Key removed from EIS
- Connect starter battery (G1/4) - FIRST
- Connect systems battery (G1) - LAST
• Charging batteries may not be possible if < 7 volts. Follow procedure
for using parallel battery method of charging (WIS AF 54.10-P-6005A)
• To start a Keyless Go equipped vehicle with a dead systems battery (G1) when
using only the KG chip card:
- Activate N82/1 ground contact by opening the EIS door
- Start vehicle as normal
Dual Battery Service Tips
Normalization::
If batteries are disconnected or dead, the following systems should be checked for
normal operation. If systems are inoperative or erratic then normalization will have
to be performed.
Potential systems requiring normalizing are:
• ESP - electronic stability program
• AAC - automatic air conditioning (2 items)
• Left front seat (7 items)
• Right front seat (7 items)
• Steering wheel and mirrors
• Windows
• Tire pressure monitoring
Dual Battery Service Tips
• When reconnecting batteries you must follow an appropriate sequence
to avoid setting fault codes and / or activating prioritization feature
- Key removed from EIS
- Connect starter battery (G1/4) - FIRST
- Connect systems battery (G1) - LAST
• Charging batteries may not be possible if < 7 volts. Follow procedure
for using parallel battery method of charging (WIS AF 54.10-P-6005A)
• To start a Keyless Go equipped vehicle with a dead systems battery (G1) when
using only the KG chip card:
- Activate N82/1 ground contact by opening the EIS door
- Start vehicle as normal
Thanks for the reply. Hopefully that is the issue. Dropped off the car yesterday to have them take a look.
