[[email protected]]

Hi, I have a 2006 SL500 with the battery light on and visit workshop on display, we already replaced the 2 batteries (Back and front) and also replaced voltage regulator and my scanner says 14.2V when engine running.. but warning light won`t go off, anyone knows what to do? Pleaseeeee?

 

[Tom Manning]

Start with one of the various hand held scan tools that can reset the message, if you don't already have one.

It's typical to get the red warning after replacing a failing rear battery. Reset it and see what happens - Most likely it will not return.

 

[[email protected]]

Hey Tom, thank you for responding. I do have a hand held scanner but I`m not getting an option to erase that particular "battery code" red light.
And like I said, I did replace rear and front batteries and the voltage regulator , I have been reading other people that says my need to replace the BCM located in the truck compartment.
At this point I`m hopeless, don`t know what else to do😟😟
I see you have a 2005 SL500, did you ever had this problem??
Thanks again !! Daniel

 

[Tom Manning]

Yes I had the same issue, as many have. When the rear battery dies it can throw the red code. Replacing the battery fixes the issue, but the code is stored in the memory. Quite likely all is working well down there though.

What's the scanner?

A basic OBDII will not suffice. You need tool with MB specific software such as the Launch Creader or the Foxwell which can clear the code, or you can probably bribe the local independent with a case of Bud to do it for you.

A dedicated scan tool on an R230 is pretty much essential basic equipment.

 

[[email protected]]

Hey Tom, ones again thank you for following back on me with this issue.
Yep, my scanner is a Zurich ZR13S (from Harborfreight 🤦‍♂️)
Do you think that I can erase that code with the Launch Creader scanner?

 

[Tom Manning]

If you order it with the Benz software, then yes.

It's more modern than the Foxwell which is as slow as, man. Mike was testing the Launch and might comment. I haven't tested one but am thinking of investing.

 

[[email protected]]

Hopefully, I should be receiving it tomorrow
(LAUNCH X431 Creader VII+ Car Code Reader EOBD, OBD2 Scanner Scan Tool Testing Engine/Transmission/ABS/ Airbag System Update via PC)
With MB software , it`s always good to have the right tools...specially with MB`s
I`ll let you know if works!!
Thank you!!