Is the Bosch 0445117021 compatible with the Audi A4?

Yes. The Bosch 0445117021 is a direct replacement diesel injector for the Audi A4 3.0 TDI and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the Bosch 0445117021 require injector coding?

No injector coding is required for the Bosch 0445117021 on most applications. Always follow the manufacturer's fitting procedure.

Is the 0445117021 supplied tested?

Yes. Every Bosch 0445117021 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the 0445117021?

Yes. The Bosch 0445117021 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 0445117021. The price shown is the full price — nothing further to pay or return.

What vehicles use the 0445117021 injector?

The 0445117021 injector is compatible with Audi A4, Audi A5, Audi A6, Audi A7, Audi Q5, and other diesel vehicles. Check the compatible vehicles section above for the full list.

What engines use the 0445117021 injector?

The 0445117021 injector is used in CJGC, CJGA, CJGD, CJMA, CKVC engine codes.

What are symptoms of a failing 0445117021 injector?

Common symptoms of a failing 0445117021 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 0445117021 injector?

A remanufactured Bosch 0445117021 injector typically costs between £160 and £160. Labour costs vary by vehicle but usually add £100–£250 per injector. All our remanufactured injectors come with a 12-month warranty.

Remanufactured Bosch 0445117021 3.0 TDI V6 (Audi/VW/Porsche) diesel injector with branded Remanufactured Injector box

Zoom1 / 4In Stock

Need Help Confirming Fitment?

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

Engine Code or Cross Reference

Bosch 0445117021 Diesel Injector

Name: Remanufactured Bosch Diesel Injector 0445117021
Brand: Bosch
SKU: 0445117021
Price: 160.00 GBP
Availability: InStock

BOSCH

Part No: 0445117021

·Trade & Garage Friendly

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In Stock — Ships within 24 hours

The Bosch 0445117021 diesel injector is a remanufactured common-rail injector for 3.0L TDI V6 engines. Remanufactured Bosch 0445117021 diesel injector for VAG 3.0 TDI V6 applications.

£160inc. 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.

12 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 CJGC engine code used in the Audi A4 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 CJGC engines.
12-month warranty, free UK delivery and no core exchange required.

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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, VW, Porsche engines including CJGC, CJGA, CJGD, CJMA, CKVC and 7 more.

Make	Model	Engine	Years
Audi	A4	3.0 TDI 204/218/245/272hp (CJGC/CLAA/CKVC)	2011–2019
Audi	A5	3.0 TDI 204/218/245/272hp (CJGC/CLAA/CKVC)	2011–2019
Audi	A6	3.0 TDI 204/218/245/272/320hp (CLAA/CRCA)	2011–2019
Audi	A7	3.0 TDI 204/218/245/272/320hp (CLAA/CRCA)	2011–2019
Audi	Q5	3.0 TDI 204/245/258hp (CJGC/CLAA/CPNA)	2011–2017
Audi	Q7	3.0 TDI 204/245/272hp (CJMA/CLAA/CRCA)	2011–2019
VW	Touareg	3.0 TDI 204/245/262hp (CJMA/CLAA/CRCA)	2011–2018
Porsche	Cayenne	3.0 TDI 245/262hp (CRCA/MCRCA)	2011–2018

Vehicles Using This Injector

Audi A4 injector Audi A5 injector Audi A6 injector Audi A7 injector Audi Q5 injector Audi Q7 injector VW Touareg injector Porsche Cayenne injector

Compatible Engines

The 0445117021 injector is compatible with the following engines:

CJGC–3.0L TDI V6 CJGA–3.0L TDI V6 CJGD–3.0L TDI V6 CJMA–3.0L TDI V6 CKVC–3.0L TDI V6 CKVD–3.0L TDI V6 CLAA–3.0L TDI V6 CLAB–3.0L TDI V6 CLZB–3.0L TDI V6 CMHA–3.0L TDI V6 CPNA–3.0L TDI V6 CRCA–3.0L TDI V6

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 3.0 TDI

Audi A5 3.0 TDI

Audi A6 3.0 TDI

Audi A7 3.0 TDI

Audi Q5 3.0 TDI

Audi Q7 3.0 TDI

Porsche Cayenne 3.0 TDI

VW Touareg 3.0 TDI

Product Description

The Bosch 0445117021 diesel injector is a remanufactured common-rail injector for 3.0L TDI V6 engines.

Remanufactured Bosch 0445117021 diesel injector for VAG 3.0 TDI V6 applications.

Direct replacement for Audi A4, A5, A6, A7, Q5, Q7, VW Touareg and Porsche Cayenne with CJGC, CLAA, CRCA and CKVC engine variants.

Cross-references 0445117022, 0445117076, 0986435413, 059130277CD, 95811012810.

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 21 days..

Common engine code: CJGC.

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

CJGA CJGC CJGD CJMA CKVC CKVD CLAA CLAB CLZB CMHA CPNA CRCA

Common Symptoms of a Failed 0445117021 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

0445117021 Price Statistics

Average Price

£160.00

inc. VAT

Price Range

£160–£160

inc. VAT

Stock

0/30

In Stock

Prices based on 30 listings for the 0445117021 injector. All prices include VAT.

Compatible Vehicles for 0445117021

0445117021 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.