0445110239 — Symptoms & Failure Modes
Common symptoms and verified failure modes of a failing Bosch 0445110239 1.6 HDi / TDCi (DV6) Common Rail Injector.
Misfiring and idling vibration · high
A worn or leaking injector under/over-fuels its cylinder, causing a rough, vibrating idle.
Starting problems / hard cold start · high
Back-leakage lowers cranking rail pressure on the DV6.
Black smoke · medium
Poor atomisation from a worn nozzle or ball-seat erosion.
Poor performance / loss of power · medium
Out-of-range injector delivery triggers reduced performance or limp mode.
Check-engine light (MIL) · medium
Cylinder-specific injector or rail-pressure fault codes.
Increased fuel consumption · medium
Over-fuelling or leakage wastes fuel.