Ford B-Max: Common Problems & Reliability Guide
Real, sourced data · last reviewed 2026-08-09
Wet Belt Degradation & Oil Pickup Contamination
Engine · severity: Critical - near-zero safe driving window once the low-oil-pressure warning appears · confidence: 85/100 · 2 cited sources
What to check before you buy
- Verify oil service history: correct Ford WSS-M2C948-B specification oil and on-schedule intervals - a strong pre-purchase risk signal even with no symptoms yet
- Scan for P0521, P0012, P0016
- There is no reliable acoustic pre-warning - the belt runs silently in oil, so do not rely on listening
- Treat any Low Oil Pressure Warning Light event in the vehicle's history as a red flag requiring full investigation of whether the belt/pickup was inspected afterward
Full repair-cost estimate, TSB/recall reference and the specific buyer negotiation tip for this issue are included in the R99 vehicle report.
This guide summarises documented, sourced findings for the Ford B-Max generally. It is not an assessment of any specific vehicle - mileage, service history and condition vary by example. A full AutoLytiQs report checks a specific listing against this data plus a live South African market valuation.