VW Polo VI 6 6R 6C Jetta IV 1.6 Fuel Injector OE 03C906031A

VW 1.6 Petrol Fuel Injector — OE 03C906031A / Blue Band

This 12V electric petrol fuel injector is designed for selected Volkswagen Polo, Polo Vivo, Jetta and related 1.6 petrol engines using OE reference 03C906031A. It fits into the injector rail and uses a 2-pin electrical connector with a 4-hole spray pattern for accurate fuel atomisation and clean fuel delivery.

Fuel injectors are precision components. The same vehicle model can use different injectors depending on engine code, production year, OE number, connector type and colour band. Always confirm fitment by VIN, engine code, OE number and injector colour band before ordering.

OE numbers and cross references

This injector is commonly matched using the OE and cross-reference numbers below. Always compare these with your old injector or confirm by VIN before purchase.

Listed engine codes

Engine code listing is a guide only. Final fitment must be confirmed by VIN, OE number, connector type and injector colour band.

What this fuel injector helps restore

• Smoother idle and cleaner combustion
• Improved starting when the old injector sprays poorly
• Reduced misfire symptoms caused by poor fuel delivery
• Cleaner throttle response and acceleration
• Improved fuel efficiency where the old injector is leaking or restricted
• Correct fuel atomisation for supported 1.6 petrol engines

Common symptoms of a faulty petrol injector

• Rough idle or unstable RPM
• Misfire on one cylinder
• Hard starting after standing
• Poor acceleration or hesitation
• Increased fuel consumption
• Petrol smell near the engine bay
• Engine warning light or fuel trim fault codes

Symptom guide

Before you order, confirm these details

Blue Band fitment note

This injector is listed with a Blue Band marking. The colour band is an important visual identifier and should be compared with the injector removed from the vehicle where possible. Do not ignore the colour band when matching fuel injectors.

Do not replace injectors blindly

Misfire and rough idle symptoms can also be caused by spark plugs, ignition coils, vacuum leaks, low fuel pressure, wiring faults, ECU faults or compression loss. Proper diagnosis is recommended before replacing injectors.

For petrol engines, check the spark plugs, ignition coils, fuel pressure, fuel filter condition and injector wiring before fitting new injectors.

Installation best practice

• Replace injector seals or O-rings where applicable
• Clean the injector rail and seating area before fitting
• Inspect the electrical connector and wiring plug
• Check fuel pressure and fuel filter condition
• Do not force the injector into the rail
• Check carefully for fuel leaks after installation
• Clear fault codes and road test the vehicle after fitting

What’s included

• Fuel injector matched to the listed application
• Seals or O-rings where supplied by the manufacturer

Images are for illustration. Confirm by OE number, engine code, connector type and colour band. Contact us with your VIN for fitment support.

FAQs

Warranty & important notes

• 12-month warranty against manufacturing defects
• Warranty does not cover incorrect fitment, contaminated fuel, damaged wiring or poor installation
• Images are for illustration. Confirm fitment by VIN, engine code, OE number and colour band
• Use clean fuel and replace the fuel filter if contamination is suspected