Manufacturer-specific fault
B210D — Mercedes Benz
Real-world scan data
Seen in
220
scans in the past year
Found in
1.8%
of scans
#520
most common code across all scans
Appears alongside · share of B210D scans
B210Ain 64.5% of scans
B210Cin 54.5% of scans
B2191in 34.1% of scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
What it means
Wireless Control Module (WCM) has detected the fused (B+) input voltage below 9 volts with the key in any position except for…
Sign in free to read the full fault guide
- The full plain-language explanation
- Free — just sign in with Google
We only see your name and email. No spam, ever.