Is the Bosch 0445115079 compatible with the Audi A4 (B7)?

Yes. The Bosch 0445115079 is a direct replacement diesel injector for the Audi A4 (B7) 3.0 and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the Bosch 0445115079 require injector coding?

No injector coding is required for the Bosch 0445115079 on most applications. Always follow the manufacturer's fitting procedure.

Is the 0445115079 supplied tested?

Yes. Every Bosch 0445115079 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the 0445115079?

Yes. The Bosch 0445115079 includes a 12 months warranty as standard, with free UK delivery.

Is an exchange or core return required?

No core exchange is required for the Bosch 0445115079. The price shown is the full price — nothing further to pay or return.

What vehicles use the 0445115079 injector?

The 0445115079 injector is compatible with Audi A4 (B7), Audi A6 (C6), Audi A8 (D3), Audi Q7 (4L), Volkswagen PHAETON, and other diesel vehicles. Check the compatible vehicles section above for the full list.

What engines use the 0445115079 injector?

The 0445115079 injector is used in ASB, BKN, BMK engine codes.

What are symptoms of a failing 0445115079 injector?

Common symptoms of a failing 0445115079 injector include hard starting, rough idle, excessive black or white smoke, engine misfires, poor fuel economy, and loss of power under load. A professional leak-off test can confirm whether the injector needs replacing.

How much does it cost to replace the 0445115079 injector?

A remanufactured Bosch 0445115079 injector typically costs between £200 and £200. Labour costs vary by vehicle but usually add £100–£250 per injector. All our remanufactured injectors come with a 12-month warranty.

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Need Help Confirming Fitment?

Not sure this injector fits your vehicle? Check using your registration number before ordering.

Engine Code or Cross Reference

Bosch 0445115079 Diesel Injector

BOSCH

Part No: 0445115079

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The Bosch 0445115079 diesel injector is a remanufactured common-rail injector for 3.0L V6 TDI engines. 3.0 V6 TDI (ASB/BKN/BMK) Remanufactured Common Rail Piezo Injector.

£200inc. VAT

(per injector)

All prices are shown in GBP (£). International customers are securely charged in GBP via Stripe.

Save 38% vs OEM price

Professionally remanufactured to OEM standards

Ordering a single injector is standard practice.

Need multiple injectors? Simply increase the quantity above.

Every order includes a 12-month workshop warranty, OEM bench-calibration before despatch.

Most 4-cylinder engines use 4 injectors — replace only what your diagnosis confirms.

In stockTested & calibrated12-month warranty

12-Month Warranty

Included on every remanufactured injector. UK-based support if you ever need it.

Tested Before Dispatch

Flow-tested and calibrated on OEM-grade rigs. Test report on file for every unit.

Free UK Delivery

Mainland tracked dispatch. Order before 2pm for same-working-day pick-up.

Trade buyers: VAT receipt included · Account terms on request · Trusted by UK garages & diesel specialists.

3 Compatible Engine Codes

Audi OEM Replacement

OEM Bench Tested

Why Buy From Us

OEM Bench Tested & Calibrated

12 Month Warranty

Free UK Delivery

UK Diesel Injector Specialists

Technical Support Available

Not sure this is the right injector? Call us on 020 3355 6581

Free UK Delivery Same-Day Dispatch

FREE UK Delivery

International Delivery — flat £50 per order

One injector or multiple injectors

Ships Worldwide

FREE UK Delivery

Flat £50 International Shipping

Royal Mail Tracked
DPD International
Secure Packaging
Tracking Number Included
12 Month Warranty

Need more later? We keep stock available for repeat orders.

Engine Intelligence

Diesel Engine

Common symptoms

Fitment note: Always confirm compatibility using registration lookup or part number before ordering.

Why this injector?

Fits the ASB engine code used in the Audi A4 (B7) and related diesel variants.
Bosch diesel injector — flow-tested and calibrated on common-rail equipment before despatch.
Commonly specified when investigating rough idle, injector knock, smoke or poor fuel economy on ASB engines.
12-month warranty, free UK delivery and no core exchange required.

Gold VerifiedVerified technical data

Bosch 0445115079 3.0 V6 TDI (ASB/BKN/BMK) Common Rail Injector

AI Technical Summary

Bosch CRI3 piezo common-rail injector for the early Audi/VW 3.0 V6 TDI engine, fitted with engine codes ASB, BKN and BMK. VW/Audi OE number 059130277BD. Used across the Audi A4 (B7), A6 (C6), A8 (D3) and Q7 (4L), plus the VW Phaeton and Touareg. Common failure drivers on these 3.0 V6 TDI piezo injectors are fuel contamination, internal piezo-stack wear and high back-leakage, which the ECU compensates for until the injector falls outside its correction range. Key symptoms: Hard starting / extended cranking; Rough idle and vibration; Loss of power / limp mode; Black or grey smoke. Common failure modes: Piezo-stack wear / high back-leakage; Nozzle coking / poor atomisation; Corrosion from water in fuel.

Common Symptoms

Hard starting / extended crankinghigh

High back-leakage from a worn piezo injector drops cranking rail pressure on the 3.0 V6 TDI, making the engine slow to start, especially when cold.

Rough idle and vibrationhigh

An out-of-balance injector unevenly fuels its cylinder, producing a shaky idle and audible misfire on the V6.

Loss of power / limp modehigh

When injector delivery falls outside its correction range the ECU pulls timing and boost or drops the engine into limp mode.

Black or grey smokemedium

Poor atomisation from a worn piezo nozzle over-fuels the cylinder, producing visible smoke under load.

Diesel knock / rattlemedium

A leaking injector causes a pronounced top-end knock on the 3.0 V6 TDI, often most obvious at idle.

Increased fuel consumptionmedium

Internal leakage and over-fuelling waste fuel and can trigger fuelling-related fault codes.

Workshop & Fitting Notes

codingEach Bosch piezo injector carries an individual IMA/ISA correction code that must be written into the ECU after fitting (channels per cylinder); without coding the V6 runs on default trim and may log cylinder-balance faults.
InstallationReplace the fuel filter and check for water/debris before fitting - contaminated fuel is the leading cause of repeat failure on the 3.0 V6 TDI.
InstallationFit new seals/clamps and use the correct tightening torque; reused or over-torqued hardware causes blow-by around the injector bore.
MisdiagnosisRead live injector correction and back-leakage values to find the weak cylinder before removal rather than replacing all six injectors blind.
WarningConfirm the stamped OE number (059130277BD) and Bosch part number on the injector body before ordering - the 3.0 V6 TDI ran several injector revisions (e.g. the later 0445117021 CLAB/CPNA/CMHA) that are NOT interchangeable.
TestingBench-test on a Bosch-capable piezo common-rail tester across delivery and back-leakage points; verify spray pattern and cylinder balance before refitting.

Frequently Asked Questions

What is Bosch injector 0445115079?+

A Bosch CRI3 piezo common-rail diesel injector for the early Audi/VW 3.0 V6 TDI engine (codes ASB, BKN and BMK). VW/Audi OE number 059130277BD.

Which vehicles use 0445115079?+

Audi A4 (B7), A6 (C6), A8 (D3) and Q7 (4L) 3.0 V6 TDI, plus the VW Phaeton and VW Touareg 3.0 V6 TDI - engine codes ASB, BKN and BMK.

Is it solenoid or piezo?+

It is a Bosch piezo (CRI3) common-rail injector.

What is the VW/Audi OE number for 0445115079?+

059130277BD (some listings also show 059130277AB). Always confirm the number stamped on your original injector before ordering.

What are the symptoms of a failing 0445115079?+

Hard starting, rough idle and vibration, loss of power or limp mode, black smoke, diesel knock and higher fuel consumption.

Why does my 3.0 V6 TDI knock or rattle?+

A leaking injector causes a top-end knock on the V6 that is often most obvious at idle. Bench-test to confirm the faulty cylinder before replacing.

What causes these injectors to fail?+

Fuel contamination, water in the fuel and high-mileage piezo-stack wear that drives up back-leakage - fix the cause, not just the injector.

Do I need to code the injector to the ECU?+

Yes. Each Bosch piezo injector has an individual IMA/ISA correction code that must be written into the ECU after fitting, or the engine runs on default trim and may log cylinder-balance faults.

Is 0445115079 the same as 0445117021?+

No. 0445115079 (OE 059130277BD, codes ASB/BKN/BMK) is the earlier 3.0 V6 TDI injector; 0445117021 (OE 059130277CD/EJ, codes CLAB/CPNA/CMHA) is a later revision. They are not interchangeable - match the stamped OE number.

Should I replace one or all six?+

Diagnose each with live correction and back-leakage values; on high-mileage V6 engines failures often cluster, so check all six before deciding.

Does a remanufactured 0445115079 perform like new?+

A properly remanufactured injector is bench-tested and recalibrated to the Bosch plan to meet original delivery and back-leakage specifications.

Related Injectors

0445115078 0445115052 0445117021

Related Engines

ASBBKNBMK

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Remanufacturing Process

Injector fully dismantled

Internal components cleaned and inspected

Worn parts replaced

Reassembled and calibrated

Tested before dispatch

See how our injectors are rebuilt step-by-step in our 3D remanufacturing process video.

Vehicles Compatible With This Bosch Injector

Compatible with Audi, Volkswagen engines including ASB, BKN, BMK.

Make	Model	Engine	Years
Audi	A4 (B7)	3.0 V6 TDI ASB/BKN	2004-2008
Audi	A6 (C6)	3.0 V6 TDI ASB/BMK	2004-2011
Audi	A8 (D3)	3.0 V6 TDI ASB	2003-2010
Audi	Q7 (4L)	3.0 V6 TDI ASB	2006-2010
Volkswagen	Phaeton	3.0 V6 TDI BMK	2004-2007
Volkswagen	Touareg	3.0 V6 TDI BMK	2004-2010

Vehicles Using This Injector

Audi A4 (B7) injector Audi A6 (C6) injector Audi A8 (D3) injector Audi Q7 (4L) injector Volkswagen Phaeton injector Volkswagen Touareg injector

Compatible Engines

The 0445115079 injector is compatible with the following engines:

ASB–3.0L V6 TDI BKN–3.0L V6 TDI BMK–3.0L V6 TDI

Also known as

This injector is sold and listed under the references below. Tap any number to copy it — every reference refers to this same product.

All references resolve to this canonical product page. Always confirm exact fitment before ordering.

Compatible Vehicles

This injector fits the following vehicles. Always confirm exact fitment by engine code or registration before ordering.

Audi A4 (B7) 3.0

Audi A6 (C6) 3.0

Audi A8 (D3) 3.0

Audi Q7 (4L) 3.0

Volkswagen Phaeton 3.0

Volkswagen Touareg 3.0

Product Description

The Bosch 0445115079 diesel injector is a remanufactured common-rail injector for 3.0L V6 TDI engines.

3.0 V6 TDI (ASB/BKN/BMK) Remanufactured Common Rail Piezo Injector.

Common engine code: ASB.

Commonly replaced when investigating rough idle, injector knock, excess smoke or poor fuel economy.

Each injector is tested to OEM standards with a 12-month warranty and free UK delivery.

Workshop Information

Installation Notes

Professional injector coding may be required after installation
Use calibrated test equipment for verification
Check engine-specific torque values before installation

Recommended Injector Coding

No injector coding is required for the Bosch unit on most applications — follow the manufacturer fitting procedure.

Replacement Advice

Always renew the copper washers / seals and bleed the fuel system before first start. Replace only the injectors your diagnosis confirms and torque fasteners to the manufacturer's published values.

Professional Installation

We recommend installation by a suitably equipped diesel specialist using calibrated test equipment to verify the fuel system after fitting.

Common Engines Using This Injector

ASB BKN BMK

Common Symptoms of a Failed 0445115079 Injector

Hard starting Rough idle Excessive smoke Poor fuel economy Engine misfires Loss of power under load

If your vehicle shows these symptoms, replacing the diesel injector may restore engine performance. A leak-off test can confirm the diagnosis.

Testing & Warranty

All remanufactured injectors are tested using OEM-grade diagnostic equipment to ensure fuel pressure and spray pattern meet manufacturer specifications.

OEM Test Bench Calibration

Flow-tested on Bosch EPS 200 series bench to verify fuel delivery rates at all operating pressures.

Leak-Off Testing

Each injector is tested for return flow to ensure no excess fuel is wasted back to the tank.

Solenoid Calibration

Electrical response time verified to ensure precise injection timing and quantity.

12-Month Warranty

Full replacement or refund covering manufacturing defects under normal use. No quibble.

IMA code includedProfessional injector coding may be required after installationUK-based support teamNo core exchange required

0445115079 Price Statistics

Average Price

£200.00

inc. VAT

Price Range

£200–£200

inc. VAT

Stock

1/30

In Stock

Prices based on 30 listings for the 0445115079 injector. All prices include VAT.

Compatible Vehicles for 0445115079

0445115079 is OE-fit on the vehicles below. Always confirm the engine code on your V5C and the OE marking on the failed unit before ordering — sister part numbers in this family can look identical but carry a different calibration map.