Hi I have a few questions if you don't mind. 1) on your dashboard, did you just have red battery warning light only (no other warnings)? 2) do you recall all the DTC codes or descriptions you got on your scanner? 3) Since you changed out both batteries, I assume the faulty BCM, ECM, and bad fuse was not charging your batteries? 4) scanner said you had a bad BCM, how did you know you had bad ECM? Did you replace both at the same time? I have 2011 SL550 with red battery warning light (no other warnings). I went to auto zone and both my batteries and alternator checked good and they ran a scan, I had 3 DTCs (6230, 6210, 5611) which were ESP, ABS, SBC control unit codes. It appears my batteries are still currently being charged and my car is running and braking fine, I'm not sure if these were stored codes from a previous job or if these are still active codes. I guess I'll go back to autozone to see if they can be cleared. I did talk to a Benz mechanic on the phone and he said I may just have bad BCM. Any thoughts? Thanks
@@rboover11 I had just the red warning light. After scanning there was a code for the battery control unit. Anyway the red warning light is a stored code. You have to delete it with a scanner. Such codes are same as airbag codes. Once they appear. And then you have to delete them actively with a scanner. Otherwise they will stay even if the problem itself was solved. In my case I had problems with the battery control module and my central gateway unit which is located behind the passenger seat.
@@rboover11 how old are your batteries? My suggestion: fully charge both batteries. Wait for 48 hours. The check if both batteries have still enough power. If so . Then both batteries are o.k. Then take out dem BCM and let it be repaired. Refit it and clear all codes actively. And wait for 24 hours. The start the engine and see what happens
Great Advice = Use your car. I have a 2009 SL63AMG. When I changed out the consumer battery, I kept the memory by using an OBD plug with 12v . I use a NOCO Genius battery charger for the consumer battery when not using the car for a week or more. Cheers
If you use an AGM battery which holds the power much longer, then it is enough to charge the battery every 2 to 3 weeks. Of course AGM is more expensive. But in this case I would recommend AGM type batteries
@@dr.p.t.2500 Yes. I use an AGM for the rear Consumer battery. This CANBUS controlled system is very sensitive indeed. Just scanning the system takes quite awhile. Cheers
@@1992smiffy That was a company in Hamburg.Germany. You can look on Google for ECU repair. There are lots of companies which are able to check and repair..just call them and ask which items can be repaired
Hi I have a few questions if you don't mind.
1) on your dashboard, did you just have red battery warning light only (no other warnings)?
2) do you recall all the DTC codes or descriptions you got on your scanner?
3) Since you changed out both batteries, I assume the faulty BCM, ECM, and bad fuse was not charging your batteries?
4) scanner said you had a bad BCM, how did you know you had bad ECM? Did you replace both at the same time?
I have 2011 SL550 with red battery warning light (no other warnings). I went to auto zone and both my batteries and alternator checked good and they ran a scan, I had 3 DTCs (6230, 6210, 5611) which were ESP, ABS, SBC control unit codes. It appears my batteries are still currently being charged and my car is running and braking fine, I'm not sure if these were stored codes from a previous job or if these are still active codes. I guess I'll go back to autozone to see if they can be cleared. I did talk to a Benz mechanic on the phone and he said I may just have bad BCM. Any thoughts? Thanks
@@rboover11 I had just the red warning light. After scanning there was a code for the battery control unit. Anyway the red warning light is a stored code. You have to delete it with a scanner. Such codes are same as airbag codes. Once they appear. And then you have to delete them actively with a scanner. Otherwise they will stay even if the problem itself was solved. In my case I had problems with the battery control module and my central gateway unit which is located behind the passenger seat.
@@rboover11 how old are your batteries? My suggestion: fully charge both batteries. Wait for 48 hours. The check if both batteries have still enough power. If so . Then both batteries are o.k. Then take out dem BCM and let it be repaired. Refit it and clear all codes actively. And wait for 24 hours. The start the engine and see what happens
Great Advice = Use your car. I have a 2009 SL63AMG. When I changed out the consumer battery, I kept the memory by using an OBD plug with 12v . I use a NOCO Genius battery charger for the consumer battery when not using the car for a week or more. Cheers
If you use an AGM battery which holds the power much longer, then it is enough to charge the battery every 2 to 3 weeks. Of course AGM is more expensive. But in this case I would recommend AGM type batteries
@@dr.p.t.2500 Yes. I use an AGM for the rear Consumer battery. This CANBUS controlled system is very sensitive indeed. Just scanning the system takes quite awhile. Cheers
@@kevhauser have a safe ride
@@dr.p.t.2500 Not easy being a doctor today...I am a chiropractor and acupuncturist 30 years...How things have changed..right?
I know..I am am general and visceral surgeon. Chief physician of the department. But we also have only one life. So try to enjoy as much as possible
Hi mate what company did you use when you sent the bcm to ?
Thansk
@@1992smiffy That was a company in Hamburg.Germany. You can look on Google for ECU repair. There are lots of companies which are able to check and repair..just call them and ask which items can be repaired