A6420700587 vs 0445115027
How the A6420700587 (Bosch) relates to 0445115027 — Bosch number for this injector..
A6420700587
Bosch · Piezo · Common Rail
Bosch piezo common-rail injector for the Mercedes-Benz OM642 3.0 V6 CDI engine. Mercedes OE A6420700587; Bosch numbers 0445115027 / 0445115064. Notorious for injector-seal 'black death'. Coding required after fitting. Key symptoms: Hard starting and poor cold running; Rough idle / misfire; Black carbon ('black death') around an injector base; Smoke, rough acceleration and loss of drivability. Common failure modes: Injector-seal blow-by ('black death'); Piezo stack degradation; Excessive back-leakage.