BK2Q-9K546-AG vs A2C59517051
How the BK2Q-9K546-AG (Siemens VDO (Continental)) relates to A2C59517051 — Continental VDO equivalent number..
BK2Q-9K546-AG
Siemens VDO (Continental) · Piezo · Common Rail
Siemens VDO / Continental piezo common-rail injector for the Ford 2.2 TDCi Duratorq 'Puma' (P22DTE) diesel, also used on Land Rover Defender 2.2 and PSA 2.2 HDi. Ford OE BK2Q-9K546-AG; Continental A2C59517051; Siemens 5WS40745; Land Rover LR032067. NOT the same as the later 2.0 EcoBlue injector - match by old part number + engine code, not vehicle badge. Key symptoms: Hard starting / extended cranking; Rough running, knocking or rattling; Limp mode / loss of power; Low fuel rail pressure / pressure-regulation codes. Common failure modes: Excessive spill / back-leakage; Piezo stack degradation / control fault; Nozzle coking / poor atomisation.