Mercedes-Benz B-Class: Auxiliary Battery Malfunction Fix
Found 667 cars
From €2 000 to €105 000
€20 477 (average)
Discover how to fix the auxiliary battery malfunction in your Mercedes-Benz B-Class. This video guide provides step-by-step instructions for an effective solution.
Auxiliary battery malfunction fix, Mercedes
Mycarro Media
Jun 7, 2026
How to fix your "Auxiliary batter malfunction" by replacing the small 12 Amp hour battery on you Mercedes B250.