Cross-Reference: 156
This cross-reference page covers OEM injector number 156, a Bosch diesel injector reference used to identify compatible remanufactured replacements and equivalent OEM part numbers. Verified vehicle applications include Audi A3. 156 has 3 known alternate references across Bosch, Delphi, Siemens VDO, and Denso catalogues — listed below for fitment confirmation. Use the sections below to confirm compatibility by engine code or vehicle before ordering. Every injector linked from this page is professionally remanufactured in our UK workshop and ships with full traceability.
Equivalent Injectors for 156
Compatible Vehicles
Common Fault Codes
Injector Problem Guides
Diesel Injector Failure SymptomsDiesel Injector Leak-Off TestBad Diesel Injector SmokeDiesel Engine Misfire From Injector FaultDiesel Injector Problem — Black SmokeDiesel Injector Problem — White SmokeDiesel Injector Problem — Rough IdleDiesel Injector Problem — Hard StartingDiesel Injector Problem — Engine KnockDiesel Injector Problem — Poor Fuel Economy
Injector Testing Guides
Related Cross References
Vehicles Using These Injectors
Frequently Asked Questions
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