How to solve mb sd c4 battery error?
MB SD C4 Connect Compact 4 For Mercedes Benz Diagnosis
1 pls make sure you have put 6 pcs 1.2V AAA rechange battery well
2 if you put well ,and all ok,but still get continue this error:
you have to open your main unit,check if your cable in main unit is connect well
weld it again,it will be ok~