Audi A4 Fuel Injectors
Precision Auto Injectors
Audi A4 Fuel Injectors
Find the correct rebuilt genuine OEM injector set by matching the complete number stamped on your original injector.
Year, A4/A4 Quattro, sedan, Avant, or Cabriolet.
Engine size and engine code when available.
many places on your vehicle show the year such as under the hood, your door jam, or your owner manual.
Audi A4 injector fitment chart
Use this chart as a starting point, then match the injector number on your original injector before ordering.
| Year | Audi Model | Engine | Injector Needed |
|---|---|---|---|
| 1997–2001 | A4 / A4 Quattro | 2.8L V6 | 078133551BA — Red |
| 1997–2001 | A4 / A4 Quattro | 2.8L V6 | 078133551L — Purple |
| 2000 | A4 / A4 Quattro / Avant | 1.8T ATW | Bosch 0280155825 |
| 2000–2006 | A4 | 1.8T | Bosch 0280156065 |
| 2000–2005 | A4 Quattro | 1.8T | Bosch 0280156065 |
| Select 2002–2006 | A4 / A4 Quattro / Cabriolet | 3.0L V6 | 06C133551 |
| 2005–2009 | A4 / A4 Quattro / Cabriolet | 2.0T FSI | Bosch 0261500020 |
| 2009–2016 | A4 / A4 Quattro Excluding 2009 Cabriolet |
2.0T TFSI | Bosch 0261500076 |
Find your Audi A4 injector set
Choose the option that matches your vehicle. Each fitment option is a full card, so it stays easy to read on a phone without side-to-side scrolling.
Why the original injector number matters
Audi used different injector families within some overlapping A4 years and engine sizes. Matching the complete original number helps avoid ordering the wrong set, installation delays, and unnecessary returns. On 2009 2.0T applications in particular, vehicle generation and original injector number matter.
Common signs of an injector problem
A dirty, restricted, leaking, or electrically failing injector may contribute to the symptoms below. These symptoms can also have other causes, so diagnose the vehicle before replacing parts.
- Rough cold start
- Uneven idle
- Engine misfire
- Hesitation or power loss
- Poor fuel economy
- Fuel smell
- Hard starting
- EPC or check-engine light
Professionally serviced genuine OEM injector sets
Precision Auto Injectors supplies rebuilt genuine injector sets. Each applicable set is serviced and tested for consistent fuel delivery, then supplied in the correct engine quantity: four injectors for four-cylinder applications and six for V6 applications.
Specific service procedures and included components can vary by injector design. Review the individual product listing for the exact set you are purchasing.
Audi A4 fuel injector questions
Why does my Audi A4 misfire when I first start it?
A leaking, restricted, or uneven injector can contribute to a cold-start misfire. Spark plugs, ignition coils, air leaks, fuel-pressure issues, and carbon buildup can cause similar symptoms. Check fault codes and diagnose the vehicle before ordering injectors.
Can a bad fuel injector turn on the EPC light?
It can contribute to an EPC or check-engine warning when it causes a combustion, fuel-delivery, or misfire fault.
Will fuel injector cleaner fix my Audi A4?
A tank additive may help only with minor Debree in the injector. It will not repair an injector with an electrical fault, internal leak, damaged component, or severe restriction.
Do replacement Audi A4 injectors need to be programmed?
Requirements vary by engine, ECU, and injector type. Direct-injection injectors possibly require installation procedures, calibration information, or coding. Verify the procedure for the exact vehicle and injector before installation.
Should I replace one injector or the complete set?
When a complete matched set is available that's, the best option replacing one leaves dought and possibly the set isn't far behind the one failing. a complete set that is flow matched takes care of all this.
Not sure which set fits?
Have your vehicle year, model, body style, engine, and a clear photo of the original injector number ready. We can help you confirm the correct option before you order.
Call 407-536-4509 for fitment help