Fuel Tank: Service and Repair
COMPONENTS
REMOVAL STEPS
Required Special Tools:
MB991348: Test Harness Set
MB991480: Tank Cap Wrench
1. BODY HARNESS CONNECTION
2. HOSE CONNECTION
3. PURGE HOSE
4. VAPOR HOSE
5. VENT HOSE
6. FILLER HOSE
7. PIPE ASSEMBLY
8. BAND ASSEMBLY
9. FUEL TANK ASSEMBLY
10. DIFFERENTIAL PRESSURE SENSOR
11. FUEL HARNESS
12. HIGH-PRESSURE FUEL HOSE
13. FUEL RETURN HOSE
14. CAP
Use special tool MB991480 to remove the cap.
15. FUEL PUMP MODULE
16. FILLER NECK
17. FUEL CAP
18. REINFORCEMENT
19. PACKING
20. VAPOR HOSE
21. SEPARATOR ASSEMBLY
22. VAPOR HOSE
23. FUEL CHECK VALVE ASSEMBLY
24. FUEL FILLER NECK ASSEMBLY
INSTALLATION STEPS
Installation is in the reverse order of Removal.
1. BODY HARNESS CONNECTION
2. HOSE CONNECTION
3. PURGE HOSE
4. VAPOR HOSE
5. VENT HOSE
6. FILLER HOSE
7. PIPE ASSEMBLY
8. BAND ASSEMBLY
9. FUEL TANK ASSEMBLY
10. DIFFERENTIAL PRESSURE SENSOR
11. FUEL HARNESS
12. HIGH-PRESSURE FUEL HOSE
CAUTION: Connect the high-pressure hose, and then pull it gently in the direction of removal to check that the hose is firmly connected.
13. FUEL RETURN HOSE
14. CAP
CAUTION: Install the packing to the fuel tank, and then install the fuel pump module to the fuel tank. Installing the packing to the fuel pump module will damage the packing lip when installing the fuel pump module to the fuel tank, and fuel leakage will occur.
1. Check that the fuel tank is not damaged or deformed, and then securely install the packing to the fuel tank.
NOTE: If the packing is damaged or deformed, replace with new packing.
CAUTION
- Do not tilt the fuel pump module when installing.
- The packing should not be folded over as shown by "A" in the illustration.
2. Apply soap water to the inside of the packing, and then install the fuel pump module.
CAUTION: When tightening, be careful not to let the fuel pump module turn together with the cap. If the mating marks are misaligned, the float may measure a remaining amount of fuel incorrectly, causing the low fuel warning light to malfunction.
3. Use the special tool MB991480 to align the mating marks on the fuel tank and fuel pump module, and tighten the cap.
15. FUEL PUMP MODULE
16. FILLER NECK
17. FUEL CAP
18. REINFORCEMENT
19. PACKING
20. VAPOR HOSE
21. SEPARATOR ASSEMBLY
22. VAPOR HOSE
23. FUEL CHECK VALVE ASSEMBLY
24. FUEL FILLER NECK ASSEMBLY