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Fuel Injector 07K-906-031-C
Verfügbar in Shops 47 Angebote
Fahrzeug-Passgenauigkeit 72 Fahrzeuge
Technische Daten
| OEM Part Number | 07K-906-031-C |
|---|---|
| Official Part Name | Injection Valve |
| Engine Application | 2.5L Inline-5 (I5) |
| Fuel System Type | Port Fuel Injection (MPI) |
| Sold As | Each (1 injector per unit) |
| Brand / Manufacturer | Genuine Volkswagen OEM |
| Compatible Years | 2007–2014 |
| Thread Size | — |
| Flow Rate | — |
| Connector Type | — |
So ersetzen Sie Fuel Injector
Replacing a fuel injector on the VW 2.5L inline-5 is an intermediate-level repair. Always work in a well-ventilated area away from ignition sources, and relieve fuel system pressure before beginning. The following steps outline the general replacement procedure; consult the official Volkswagen service manual for torque values and engine-code-specific details.
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Safety Preparation
Disconnect the negative battery terminal and allow the vehicle to sit. Relieve fuel system pressure by locating the fuel pump fuse or relay, starting the engine until it stalls, then cranking briefly to bleed residual pressure.
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Remove the Engine Cover
Unclip or unbolt the plastic engine cover and set it aside to gain clear access to the intake manifold, fuel rail, and injector wiring harness.
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Disconnect the Wiring Harness
Press the locking tab and carefully unplug the electrical connector from the fuel injector you are replacing. Label or photograph connector positions if removing multiple injectors.
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Remove the Fuel Rail
Disconnect the fuel supply line from the fuel rail, then unbolt the fuel rail retaining bolts. Carefully pull the rail and injectors out of the intake manifold seats as an assembly, taking care not to damage adjacent injectors.
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Extract the Old Injector
Remove the retaining clip securing the injector to the fuel rail, then pull the injector straight out. Discard both the upper and lower O-rings — never reuse old O-rings.
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Install the New Injector
Fit the new O-rings included with the OEM injector and lightly lubricate them with clean engine oil. Insert the injector 07K906031C into the fuel rail, secure with the retaining clip, then seat the rail assembly back into the intake manifold.
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Reassemble and Reconnect
Reattach the fuel rail bolts, reconnect the fuel supply line, and plug in the injector wiring connector until it clicks. Reinstall the engine cover.
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Leak Check and Start-Up
Reconnect the negative battery terminal. Turn the ignition key to the 'ON' position (without starting) two or three times to prime the fuel system, then start the engine. Inspect the fuel rail, injector seat, and supply line for any fuel leaks before returning the vehicle to service.
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Engine Misfires
A clogged or failed injector disrupts the air-fuel ratio in one cylinder, causing intermittent or consistent misfires, often accompanied by a flashing check engine light.
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Rough or Unstable Idle
Uneven fuel delivery from a faulty injector causes the engine to hunt, stumble, or shake noticeably at idle, especially when the engine is cold.
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Decreased Fuel Economy
A leaking or stuck-open injector allows excess fuel into the cylinder, reducing combustion efficiency and causing a noticeable drop in miles per gallon.
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Hard Starting or No Start
A failed injector that does not open or is severely clogged can prevent the affected cylinder from receiving fuel, making cold starts difficult or preventing the engine from firing altogether.
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Check Engine Light (CEL)
The ECU monitors injector circuit performance; a faulty 07K906031C will typically trigger fault codes related to fuel trim, injector circuit malfunction, or cylinder-specific misfires (P030X series).
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Fuel Smell or External Leak
A cracked injector body or deteriorated O-ring can cause raw fuel to leak externally near the fuel rail, producing a strong gasoline odor and posing a fire hazard.
Wechselintervalle
Fuel injector lifespan varies significantly based on fuel quality, maintenance history, and driving conditions. Using Top Tier certified fuel and replacing the fuel filter at manufacturer-recommended intervals can extend injector service life.
Häufig gestellte Fragen
Is 07K906031C sold as a single injector or as a set?
The OEM part number 07K906031C is priced and sold per individual injector. The 2.5L inline-5 engine uses five injectors total, so if performing a full set replacement, you will need to order five units.
Will this injector fit my 2.5L VW Jetta, Beetle, Rabbit, Golf, or Passat?
Yes, confirmed fitment spans the 2.5L inline-5 applications including Beetle (2007–2014), Jetta (2007–2014), Rabbit (2007–2009), Golf (2010–2014), and Passat (2012–2014). Always verify using your vehicle's specific engine code before ordering.
Can I replace just one injector, or should I replace all five at once?
You can replace a single failed injector, which is the most common approach. However, if the vehicle has high mileage and one injector has failed, replacing all five at the same time can prevent repeat labor costs as the remaining injectors may be near the end of their service life.
Are aftermarket fuel injectors a reliable alternative to this OEM part?
Quality aftermarket options from suppliers like Bosch or Delphi can perform reliably when correctly spec'd. However, OEM Volkswagen injectors are manufactured to exact factory tolerances for spray pattern, flow rate, and O-ring sizing. For emissions-tested vehicles or those still under warranty, OEM is generally the safer choice.
Do I need any special tools to replace this fuel injector?
Basic hand tools are sufficient for most of the job. However, an injector removal tool or fuel line disconnect tool may be needed depending on your specific fuel rail configuration. A scan tool capable of reading VW fault codes is also strongly recommended to confirm the injector is the root cause before purchasing.
How do I know if my injector is clogged versus electrically failed?
A scan tool will reveal injector circuit codes (e.g., open or short circuit) pointing to electrical failure. Clogged injectors often show up as lean fuel trim codes or cylinder-specific misfires without circuit faults. Professional ultrasonic injector cleaning and flow testing can confirm whether a clog is the issue before committing to replacement.
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