Heated Glass Element: Testing and Inspection

Heated Windshield, Checking

Test requirements:

• Outside temperature < 5°C

• Voltage at Heated Windshield Control Module (J505) greater than 12V

• Engine is running

• Button on Climatronic control head is pressed

• No load limitation via Vehicle Electrical System Control Module (J519)

• Depending on the outside temperature the heating period is a maximum of 6 minutes.

• At this time, it is only possible to test the heated front windshield only when the test conditions listed above have been met.

Special tools, testers and auxiliary items required

• Vehicle Diagnostic, Testing and Information System (VAS 5051A)

• Diagnostic cable (VAS 5051/6A)

- Connect Vehicle Diagnosis, Testing and Information System (VAS 5051A).

- Switch on ignition.

- Turn off all electrical consumers.

• If the indications described in the work procedure do not appear on the display:--> User manual for vehicle information, testing and information system (VAS 5051A)

- Select operating mode "Guided Fault Finding" on Vehicle Diagnostic, Testing and Information System (VAS 5051A).

- Using the "Go To" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Heating, ventilation, air conditioning (Repair group 01; 80 to 87)

• 01 - On Board Diagnostic (OBD) capable systems

• Climatronic or manual A/C system

• Functions

• Heated Windshield, Checking