0445110468 — Symptoms & Failure Modes
Common symptoms and verified failure modes of a failing Bosch 0445110468 2.0 TDI (EA288) Common Rail Injector (VW/Audi/Seat/Skoda).
Rough idle / vibration · high
A leaking or out-of-range EA288 injector unbalances cylinder fuelling, giving a rough idle.
Hard starting · high
Excess back-leakage drops cranking rail pressure on the 2.0 TDI.
Loss of power / limp mode · high
Out-of-range injector delivery or rail-pressure deviation cuts power.
Black smoke · medium
Poor atomisation from a worn or coked nozzle over-fuels the cylinder.
Engine management light · medium
Cylinder-specific injector, rail-pressure or fuel-metering fault codes.
Increased fuel consumption · medium
Over-fuelling and leak-off waste fuel.