038130073BN — Frequently Asked Questions
Verified answers about the Bosch 038130073BN (0414720313) VW 1.9 TDI PD Pumpe-Duse Unit Injector.
What is 038130073BN?
A Bosch Pumpe-Duse (PD) unit injector for VW Group 1.9 TDI PD engines. The Bosch number is 0414720313 and VAG OE numbers are 038130073BN / 038130073BL.
Is this a common-rail injector?
No. It is a camshaft-driven Pumpe-Duse (unit) injector, so fitting, timing and testing differ from common-rail injectors.
Which engines use 038130073BN?
The 1.9 TDI PD engines including BKC, BXE, BLS, BJB, BRU and BSW.
Which vehicles use this injector?
VW Golf Mk5, Caddy, Touran, Passat B6, Jetta; Audi A3 8P; Seat Leon/Altea/Toledo/Ibiza; Skoda Octavia/Fabia/Superb 1.9 TDI.
What are the symptoms of a failing PD injector?
Top-end ticking, rough idle/misfire, loss of power, smoke, hard starting and sometimes oil dilution.
Why does my 1.9 PD tick at the top end?
PD camshaft injector-lobe wear is a known fault and can mimic or accompany injector issues - inspect the cam when diagnosing injector noise.
Is 038130073BN the same as 0414720313?
Yes, 0414720313 is the equivalent Bosch number; 0414720404/0414720312 are related PD variants - verify the suffix by engine code.
Can I test PD injectors on a common-rail bench?
No - PD unit injectors need a PD-capable bench that can drive the cam-actuated injector.
Do I need to code PD injectors?
PD injectors are graded; the correct injector grade/adjustment should be set with VAG diagnostics for smooth running.
Why does the oil smell of diesel on a 1.9 PD?
Injector seal leakage and PD cam wear can dilute the oil with fuel - investigate seals and the camshaft, and change the oil.
How do I make PD injectors last longer?
Use correct PD-spec oil, keep to proper service intervals, and address camshaft wear promptly to protect the injectors.
Does a remanufactured 038130073BN perform like new?
A properly remanufactured PD unit injector is bench-tested and recalibrated to the Bosch plan to restore original delivery.