What is the fault when the Audi A4L fuel tank cannot be locked?
1 Answers
Fault Diagnosis: (1) Use VAS5052 for fault navigation inspection, and no fault records are found in the 46 address code comfort system control unit. (2) Perform actuator diagnosis inspection. The fuel tank lock can be unlocked normally. After the central door lock is locked, the fuel tank lock can still be pressed down and unlocked. (3) Check that the fuel tank lock pump is accurately installed in the standard position on the right rear fender, with no offset or movement. After removing the fuel tank lock separately, the fuel tank lock can be locked normally. (4) After detailed inquiry, it was learned that the faulty vehicle had previously undergone sheet metal and paint repair in the right rear fender area. After the repair, the vehicle continued to be used for a period of time, and the user discovered that the fuel tank lock could not be locked normally when refueling. (5) Query the relevant content in the EISAWIN system repair manual and find that the normal disassembly and assembly steps indicate that the fuel tank lock emergency cable must be removed together with the fuel tank lock. (6) Review the company's sheet metal repair technician. During this disassembly of the fuel tank lock, the fuel tank lock was removed separately, and the emergency cable and fuel tank lock were reinstalled. (7) Carefully inspect the assembly relationship between the emergency cable and the fuel tank lock. It is found that the width of both ends of the cable is not completely consistent, and attention should be paid to the different installation positions during assembly.
