[Repair Case] 2020 Audi A6L unable to turn on the ignition switch.

Posted by Tony Brown on

[Repair Case] 2020 Audi A6L unable to turn on the ignition switch.

Model: 2020 Audi A6L (C8), equipped with 2.0T DKWB engine and 0CK transmission. Driving Mileage: 6,308 miles.  Issue: After being parked for two days, the vehicle’s ignition switch cannot be turned on and the engine cannot be started. There is only one yellow warning light on the instrument cluster, as shown in Figure 1.  Figure 1  Diagnosis: At this time, because the ignition switch cannot be turned on, the diagnostic instrument cannot be accessed under normal conditions. It is necessary to manually input vehicle information, and then try to turn on the headlights or hazard warning lights to enter the...

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[Repair Case] 2009 Cadillac Escalade shuffles when accelerating at medium and low speeds

Posted by Tony Brown on

[Repair Case] 2009 Cadillac Escalade shuffles when accelerating at medium and low speeds

A 2009 Cadillac Escalade hybrid electric car equipped with a V8 6.0L gasoline engine and matched with a 2ML70 mild hybrid PS structure type transmission. Driving Mileage: Around 105,600 miles. Issue: Continuous shuffle when accelerating at medium and low speeds, and the phenomenon is especially obvious just after a sudden acceleration on starting. Diagnosis: After picking up the car, the customer describes the fault phenomenon and shows that the car is basically normal when it’s cold and the fault is difficult to test. Also, the fault does not occur very frequently when the car is hot, so as to be...

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[Repair Case] 2011 BMW 535i automatic cruise failure

Posted by Tony Brown on

[Repair Case] 2011 BMW 535i automatic cruise failure

Model: F07. Driving Mileage: 37282miles Issue: The user reports that the cruise system failure warning lamp lights up when the vehicle is driving, and the central information display screen prompts "Automatic cruise system failure! Collision function failure!" Diagnosis: After picking up the car, it is found that the automatic cruise system fault alarm phenomenon of the vehicle currently exists. Connect ISID for diagnosis and testing, and read the fault content in the vehicle fault memory as follows: 48003B: ICMACC sensor reported failure 482136: ACC sensor is out of adjustment 482130: ACC sensor test run The new ACC sensor replaces the...

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[Repair Case] Euler R1 Instrument Failure Light On

Posted by Tony Brown on

[Repair Case] Euler R1 Instrument Failure Light On

  Model: CC7000ZM01BEV, with a cruising range of 310km.Driving Mileage: 14km.                                                                 Issue: After charging the battery overnight, the vehicle can be started the next day when preparing to wash the car for delivery, but after the D gear is engaged, the vehicle cannot drive, and the gear information displayed on the meter continues to flash at the N gear position, as shown in Figure 1. Figure 1 Diagnosis: Combined...

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[Repair Case] 2019 Mercedes-Benz EQC400’s Instrument Prompts Protection System Failure

Posted by Tony Brown on

[Repair Case] 2019 Mercedes-Benz EQC400’s Instrument Prompts Protection System Failure

Issue: A Mercedes-Benz EQC400 pure electric vehicle in 2019, with a mileage of 2352km. The customer complained that the meter showed that the protection system was faulty and the battery light was on. Diagnosis: Start the vehicle, the instrument displays the fault of the protection system and the battery light is on. The customer reports that the car has been driven for more than a month and has been in normal use. It suddenly broke down lately when driving, and no maintenance has been done before. Quickly test the vehicle with a special diagnostic instrument for Mercedes-Benz (XENTRY), and the...

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Driving mileage: 62 miles

Posted by Tony Brown on

Issue: The car's keyless entry function is invalid. Diagnosis: The vehicle is new. When doing PDI, the maintenance professional discovered that the system had a fault code: “B117113 enters and starts the system antenna in the bumper is open, static," which was deleted after the fault code was removed. When testing the four-door keyless entry function, the door lock function was working, but on the second day, the customer reported the failure again. After the technician picks up the car and turns on the ignition switch, the instrument displays "Fault: Keyless System". The fault code is still B117113. The entry...

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Model: Discovery 4, V6 diesel engine 3.0L.

Posted by Tony Brown on

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...

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[Repair Case] Lexus ES350 smart boarding system fails

Posted by Tony Brown on

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...

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[Repair Case] 2014 Audi A7 multiple fault lights suddenly light up while driving.

Posted by Tony Brown on

[Repair Case] 2014 Audi A7 multiple fault lights suddenly light up while driving.

[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...

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[Repair Case] Audi A6L occasionally fails to start after replacing the engine assembly

Posted by Tony Brown on

[Repair Case] Audi A6L occasionally fails to start after replacing the engine assembly

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,...

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[Repair Case] Mercedes-Benz E260 engine fault light is on

Posted by Tony Brown on

[Repair Case] Mercedes-Benz E260 engine fault light is on

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...

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[Repair Case] Highlander 2nd to 3rd gear shock.

Posted by Tony Brown on

Model: Equipped with U151E/F automatic transmission. Issue: Highlander 2nd to 3rd gear shock. Diagnosis: When the vehicle accelerates hard, a forced downshift occurs from 3rd to 2nd gear. As speed increases, and when the throttle is removed, the engine load is lessened. The vehicle will shift from gear 2 to gear 3 (the typical car upshift will be seamless if you don't step on the accelerator), but if you accelerate engine load will increase, and the engine and transmission computer will change gears. When overtaking, the car will automatically shift to a lower gear. If the U250E transmission is in...

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