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Bosch 04L130277AC Diesel Injector
BOSCHPart No: 04L130277AC
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The Bosch 04L130277AC diesel injector is a remanufactured common-rail injector for 2.0L TDI engines. VW Group EA288 2.0 TDI (DFGA/DEUA) Bosch CRI2.20 piezo injector.
(per injector)
+ £20 refundable core deposit per injector — refunded when your old unit is returned within 30 days
All prices are shown in GBP (£). International customers are securely charged in GBP via Stripe.
Dispatch within 24h. Free UK delivery.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.
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.
Why Buy From Us
Not sure this is the right injector? Call us on 020 3355 6581
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
VW / Audi / Škoda / SEAT 2.0 TDI (EA288 Gen2 — A4, A3, Golf, Passat, Tiguan) DFGA
Common symptoms
- Unstable idle or shaking at idle
- Loss of power, poor acceleration or limp mode
- Diesel knock or metallic rattling, especially cold or under load
- White or black smoke
- Hard starting; fuel smell or a rising oil level in advanced cases
Documented failure modes
- Injector delivery drift showing as deviation values out of range
- Injector electrical faults logging cylinder circuit codes
- Leaking or stuck-open injector diluting the engine oil with diesel
Diagnostic guidance
- Log injector correction values in diagnostic software — a large outlier identifies the weak unit
- Check the engine oil for diesel dilution on suspected leaking injectors
- EGR, DPF and fuel-pressure faults overlap with injector symptoms on the EA288 — confirm with leak-back and live rail-pressure data
- Injector coding is required after fitting — follow the manufacturer procedure
Fitment note: EA288 Gen2 2.0 TDI spans many engine codes and outputs, and the 1.6 TDI side of the platform uses different references — always match the number etched on the injector body.
Why this injector?
- Fits the DFGA engine code used in the Audi A3 (8V) 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 DFGA engines.
- 12-month warranty, free UK delivery and no core exchange required.
Bosch 04L130277AC 2.0 TDI Common Rail Injector (VW Golf/Passat, Audi A3, Seat Leon, Skoda Octavia EA288)
Bosch 04L130277AC (Bosch 0445110611/0445110612) CRI2.20 piezo common-rail injector for the VW Group 2.0 TDI EA288 (DFGC/DEUC/DBGC) across VW Golf VII/Passat B8/Tiguan, Audi A3/Q3, Seat Leon and Skoda Octavia/Superb. IMA/IQA correction coding required. Remanufactured, calibrated, 12-month warranty. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Nozzle coking / poor spray pattern; Water-in-fuel corrosion.
A leaking or out-of-calibration injector unbalances cylinder fuelling, felt as a shake at idle.
Excess back-leakage bleeds rail/line pressure during cranking, causing long or failed starts.
Out-of-range delivery or pressure deviation triggers a torque cut and limp home.
Poor atomisation or a dribbling nozzle over-fuels the cylinder.
Cylinder-specific injector, balance or fuel-metering fault codes are logged.
- InstallationCode the injector IMA/IQA correction value to the correct cylinder with VCDS/ODIS on fitment before road test.
- InstallationRenew the copper combustion washer and leak-off seals; torque the clamp/nut to manufacturer spec.
- MisdiagnosisRead live back-leakage and per-cylinder contribution data to confirm the weak cylinder before removal.
- TestingBench-test across delivery and back-leakage points and verify spray pattern before refit.
- WarningConfirm fitment by OE number and engine code before ordering; injector sub-variants are not always interchangeable.
What is injector 04L130277AC?+
04L130277AC is a Bosch common rail piezo injector (cri2.20) diesel injector for the VW Group 2.0 TDI EA288 (DFGC/DEUC/DBGC). It is supplied remanufactured, bench-tested and calibrated to OEM specification.
Which vehicles use 04L130277AC?+
It is fitted to the VW Group 2.0 TDI EA288 (DFGC/DEUC/DBGC) — including Volkswagen Golf (Mk7) 2.0 TDI (EA288, DFGC/DEUC); Volkswagen Passat (B8) 2.0 TDI (EA288, DFGC/DEUC); Volkswagen Tiguan (AD1) 2.0 TDI (EA288, DFGC/DBGC); Audi A3 (8V) 2.0 TDI (EA288). Confirm fitment by OE number and engine code.
What type of injector is 04L130277AC?+
It is a Bosch Common Rail Piezo Injector (CRI2.20). Always confirm the OEM markings on the injector body before fitting.
Does 04L130277AC need coding when fitted?+
Yes — the injector IMA/IQA correction value must be written to the correct cylinder with VCDS/ODIS on fitment.
What are the symptoms of a failing 04L130277AC?+
Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.
What causes these injectors to fail?+
Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.
Is a remanufactured 04L130277AC as good as new?+
A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.
Should I replace one injector or the full set?+
Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.
Do you bench-test the injector before dispatch?+
Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.
Is delivery and warranty included?+
Yes — the price includes free UK delivery and a 12-month warranty.
Does 04L130277AC need IMA/IQA coding?+
Yes — write the injector IMA/IQA correction value to the correct cylinder with VCDS/ODIS on fitment, or the EA288 2.0 TDI may run rough and log balance faults.
Is this the 1.6 TDI or 2.0 TDI EA288 injector?+
04L130277AC is the 2.0 TDI EA288 injector (DFGC/DEUC/DBGC). It is not interchangeable with the 1.6 TDI EA288 injector — confirm the OE suffix and engine code before ordering.
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Remanufacturing Process
See how our injectors are rebuilt step-by-step in our 3D remanufacturing process video.
Vehicles Compatible With This Bosch Injector
Compatible with Audi, Seat, Skoda, Volkswagen engines including DFGA, DFGC, DEUA, DEUC, DBGA and 2 more.
| Make | Model | Engine | Years |
|---|---|---|---|
| Audi | A3 (8V) | 2.0 TDI (DFGA) | 2014–2020 |
| Audi | Q3 (8U) | 2.0 TDI (DFGA) | 2014–2018 |
| SEAT | Leon (5F) | 2.0 TDI (DFGA/DEUA) | 2014–2020 |
| Skoda | Octavia (5E) | 2.0 TDI (DFGA) | 2014–2020 |
| Skoda | Superb (3V) | 2.0 TDI (DFGA/DEUA) | 2015–2020 |
| Volkswagen | Golf (Mk7) | 2.0 TDI (DFGA/DEUA) | 2014–2020 |
| Volkswagen | Passat (B8) | 2.0 TDI (DFGA/DEUA) | 2014–2020 |
| Volkswagen | Tiguan (AD1) | 2.0 TDI (DFGA/DBGC/DFFA) | 2016–2020 |
| Skoda | Karoq (NU7) | 2.0 TDI (DFFA) | 2017–2020 |
Vehicles Using This Injector
Compatible Engines
The 04L130277AC injector is compatible with the following engines:
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.
Product Description
The Bosch 04L130277AC diesel injector is a remanufactured common-rail injector for 2.0L TDI engines.
VW Group EA288 2.0 TDI (DFGA/DEUA) Bosch CRI2.20 piezo injector.
Common engine code: DFGA.
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
Common Symptoms of a Failed 04L130277AC Injector
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.
04L130277AC Price Statistics
Average Price
£120.00
inc. VAT
Price Range
£120–£120
inc. VAT
Stock
1/1
In Stock
Prices based on 1 listing for the 04L130277AC injector. All prices include VAT.
Compatible Vehicles for 04L130277AC
04L130277AC 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.
Engine Codes Using 04L130277AC
This injector is used in the following diesel engine codes. View engine-specific problems and diagnostics:
Cross Reference Numbers for 04L130277AC
The following part numbers are cross-referenced to 04L130277AC and may be used as direct replacements:
Related Fault Codes
If your vehicle has flagged any of these fault codes, the 04L130277AC injector may need testing or replacement:
Injector Problem Guides
Experiencing issues with your diesel injector? These guides cover common injector problems and diagnosis:
Injector Testing Guides
Learn how to test and diagnose diesel injectors before ordering a replacement:
Other Injectors for This Engine
Frequently Asked Questions
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Related Pages
Bosch 2.0L TDI — browse compatible engines, vehicles, and injectors
Compatible Vehicles
Equivalent Part Numbers
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Cross References
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Workshop Knowledge for This Injector
Common Symptoms
Workshop Guides
Every remanufactured injector includes a 12-month warranty and is bench-tested to OEM spec before dispatch.
Old-unit exchange applies — your core surcharge is refunded when we receive your old injector.
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