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.
2002 Freightliner Sprinter 3500 L5-2.7L DSL TurboFACTORY OEM SERVICE PROCEDURE
Fuel Level Sensor: Service and Repair
FUEL LEVEL SENDING UNIT/SENSOR
REMOVAL
The fuel level sending unit (fuel level sensor) and float assembly is located on the side of the fuel tank module.
1. Remove fuel tank module from fuel tank. Refer to Fuel Tank Module removal/installation.
2. Disconnect wiring from fuel tank module base using a terminal pick/removal tool. Refer to Special Tools in 8W, Wiring for tool part numbers.
3. To remove sending unit from tank module, lift on plastic locking tab while sliding sending unit on its tracks.
INSTALLATION
1. Connect (snap) necessary wiring into base of fuel tank module.
2. Position sending unit to tank module. Slide and snap into place.
3. Install fuel tank module. Refer to Fuel Tank Module removal/installation.
REMOVAL
Fuel Gauge Sending Unit:
The fuel level sending unit (fuel level sensor) and float assembly is located on the side of the fuel tank module.
1. Remove fuel tank module from fuel tank. Refer to Fuel Tank Module removal/installation.
2. Disconnect wiring from fuel tank module base using a terminal pick/removal tool. Refer to Special Tools in 8W, Wiring for tool part numbers.
Fuel Gauge Sending Unit R/I:
3. To remove sending unit from tank module, lift on plastic locking tab while sliding sending unit on its tracks.
INSTALLATION
1. Connect (snap) necessary wiring into base of fuel tank module.
2. Position sending unit to tank module. Slide and snap into place.
3. Install fuel tank module. Refer to Fuel Tank Module removal/installation.
Factory Service Tools
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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.