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VIN: SALMN15486A××××××. Driving mileage: 33418 miles. Issue: The customer reported that the sunroof of the car could not be opened. Diagnosis: The car was brought into the factory for routine repair. The sunroof could not be opened, according to the owner. The sunroof did not respond when the sunroof switch was operated after the vehicle key was switched on, according to the fault verification. The sunroof calibration with Land Rover's unique diagnostic device yields no results. When connecting the diagnostic instrument to read the fault code, no associated fault code is found. The following are the main reasons for the...

Issue: The Lexus ES350 sedan has 136,000 miles and is fitted with one-key smart start and smart boarding functions. Customers say they can't utilize the smart car system normally.  Diagnosis: Start the vehicle without using the smart key to approach the ignition switch, indicating that the smart entry system is not turned off (can be set to turn off), turn the vehicle power mode to OFF state, press the smart key to lock and unlock Switch, it is discovered that the vehicle can be unlocked and locked normally, without any abnormalities, the vehicle will be unlocked. The vehicle could be...

[Model: 2014 Audi A7 Coupe. Driving mileage: 37282miles. Issue: Multiple fault lights suddenly light up during driving, with ABS, tire pressure monitoring and air suspension all illuminated. The fault remains after the car is turned off and restarted. Diagnosis: First, connect to VCDS and enter 03 detection, the fault code is 0365 of the right front wheel speed sensor, the fault code is shown in Figure 1.   Figure 1 Turn the right front wheel once the wheel is off the ground, and the wheel speed as well as forward and backward status can be displayed normally in the data...

Model: Audi A6L, equipped with BPJ engine and 01J transmission.Driving mileage: 79684km.Trouble phenomenon: The customer's vehicle shakes severely after starting, and the vehicle is towed to our service station.After inspection by the maintenance technician, it was found that the camshaft of the vehicle had been slightly locked and the engine needed to be repaired. The customer did not agree to the repair and directly asked us to replace the engine assembly, as shown in Figure 1. Figure 1 Replace the engine assembly  After the engine was replaced, it was handed over to the customer for use. On the third day,...

Model: Equipped with M271EVO engine. VIN: LE42121471L××××××. Issue: The customer reported that the engine fault light was constantly on, and after which, the engine was sometimes weak. Diagnosis: Inspect the vehicle after getting it according to the customer's description. The technician started the engine and discovered that the engine warning light on the instrument was always on; the operating condition was checked while the engine was idling, and no visible abnormalities were discovered. Confirm the failure that the customer has reported. The technician then connected to a Mercedes-Benz special diagnostic equipment to read the relevant fault code, which revealed that...