9802448680 vs 5WS40677
How the 9802448680 (Siemens VDO (Continental)) relates to 5WS40677 — Siemens VDO equivalent number for the same injector..
9802448680
Siemens VDO (Continental) · Piezo · Common Rail
9802448680 is a PSA (Peugeot/Citroen) OE reference. The physical injector is a Siemens VDO / Continental piezoelectric common-rail unit (Siemens part 5WS40677, Continental A2C59513556), NOT a Bosch unit. See research.md. Key symptoms: Hard / prolonged starting, especially when cold; Misfire and rough idle, worst when cold; Loss of power / limp (safe) mode; Excessive black or white exhaust smoke. Common failure modes: Excessive internal back-leakage; Piezo stack degradation / electrical fault; Nozzle coking / carbon build-up.