Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fuel injector, location/task/design/function - GF07.03-P-5004F
ENGINE 104 (except 104.98)
ENGINE 111
ENGINE 112 (except 112.96)
ENGINE 113 (except 113.99)
ENGINE 119 (except 119.96)
ENGINE 120
ENGINE 137
Structure (the engines shown are engines 119, 120)
The diameter and number of the outlet bore holes are adjusted to the fuel requirements of the engine.
| Fuel injector, location | At cylinder head | ||
| Fuel injector, task | Spraying the fuel onto the injectors in the form a finely atomized spray | ||
| Fuel injection valve structure/function | When energizing the magnet coil (3) the nozzle needle (5) is lifted above the solenoid armature (4) against the coil spring (11) by approx. 0.1 mm and the fuel flows out of the holes. Actuation of the fuel injection valves occurs over correspondingly long earth impulses from the engine control unit, power supply from terminal 87. |
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.