Bosch 0445115039 Diesel Injector
2.7L V6 TDI CR · 0445115039
Remanufactured Bosch 0445115039 piezo common-rail diesel injector for Audi A6 2.7 TDI V6 (BPP, BSG). Direct replacement for Audi OE 059130277AC / 059130277AJ / 059130277BB / 059130277M / 059130277P / 059130277R and Bosch cross-references 0445115080, 0445115054, 0445115081, 0445115053, 0445115038, 0445115018, 0445115019, 0986435388, 0986435353. OEM-tested and calibrated with full flow and leak-back verification on CR318 PRO test bench. Includes 12-month unlimited-mileage warranty. Supplied as an exchange unit — return your old injector within 30 days.
2
Engine codes
16
OE / cross-refs
3
Vehicle fitments
12mo
Warranty
Common failure symptoms
On the 2.7L V6 TDI CR platform, a failing Bosch 0445115039 injector typically presents as: uneven idle; loss of power with rail-pressure faults; hard starting when warm; excess smoke on start-up.
When two or more of these appear together, suspect the injector before peripheral systems — a comparative leak-off test and live-data cylinder-balance review will isolate the failed unit without tear-down.
When two or more symptoms appear together, suspect the injector before peripherals (EGR, glow plugs, turbo). A live-data leak-off test on each cylinder is the fastest route to the failed unit.
What Causes These Injectors To Fail
The documented failure modes on this platform are: piezo injector internal leak-back rising with temperature; nozzle tip coking on short-journey duty cycles; injector circuit faults from loom or connector degradation.
Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.
How Workshops Diagnose 0445115039 Faults
Piezo injectors must never be energised with solenoid-type test currents. Measure back-leak per bank on the V6 — both rails must be compared. Injector calibration values must be written following the manufacturer procedure after fitting.
Never condemn a common-rail injector on a fault code alone — codes identify the circuit or cylinder, while leak-off volumes and correction values identify the component.
How Every Unit Is Tested Before Despatch
Each remanufactured 0445115039 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is then calibrated on a common-rail test bench against the manufacturer's specification sheet — delivery, back-leak and response are all verified before the injector is sealed and despatched with its calibration data on file.
Every unit carries a 12-month parts warranty and free UK delivery.
Vehicle Coverage At A Glance
The 0445115039 trusted family covers 3 verified vehicle fitments across 1 make: Audi. Every fitment listed on this page is registry-verified — no scraped or assumed applications.
OE & Cross-References
0445115039 supersedes or cross-references 15 further OE numbers, including 0445115080, 0445115054, 0445115081, 0445115053, 0445115038, 0445115018, 0445115019 and 0986435388. Always match the reference etched on your failed unit's body — cross-references within a family are verified equivalents, but etched numbers remain the source of truth.
Related fault codes & engine guides
Trusted compatibility
Vehicle fitments
| Make | Model | Engine | Years |
|---|---|---|---|
| Audi | A6 Saloon (4F2, C6) | 2.7 TDI V6 Common Rail (BPP, BSG) | 2004–2008 |
| Audi | A6 Avant (4F5, C6) | 2.7 TDI V6 Common Rail (BPP, BSG) | 2005–2008 |
| Audi | A6 Allroad (4FH, C6) | 2.7 TDI V6 Common Rail (BPP) | 2006–2008 |
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Frequently asked
Related engine guides
Other Bosch and same-platform injector families worth checking.
All cross-references in this family
Every reference below resolves to a PDP linked to this trusted family. 0445115039, 0445115080, 0445115054, 0445115081, 0445115053, 0445115038, 0445115018, 0445115019, 0986435388, 0986435353, 059130277M, 059130277P, 059130277R, 059130277AC, 059130277AJ, 059130277BB.
Bosch know-how from the Knowledge Centre
Identification, coding, fitting and the mistakes that cause comebacks.