Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2004A4 SEDAN (8E2) L4-1.8L TURBO (AMB)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESMEASURING VALUE BLOCKS (FUNCTION 08)READING
2004 Audi A4 Sedan (8E2) L4-1.8L Turbo (AMB)
Reading
2004 Audi A4 Sedan (8E2) L4-1.8L Turbo (AMB)SECTION Reading
Read Measuring Value Block (Function 08)
NOTE:
- To test speed signal push the vehicle several meters (more than 5 km/h) with the ignition switched on.
- With ignition switched off connect VAS 5051 Vehicle Diagnostic, Testing and Information System with VAS 5051/1 diagnostic cable to 16-pin data link connector on vehicle. Connecting VAS 5051 Tester
- Switch ignition on or start engine.
- Select "Auto" operating mode on A/C Control Head -E87-.
- Select "Address word" 08 for A/C heater/electronics. Connecting VAS 5051 Tester
Indicated on display of VAS 5051:
- Check DTC memory. Displaying & Reading Trouble Codes
- Press buttons -0- and -8- to select "Read Measuring Value Block" function 08.
Indicated on display of VAS 5051:
- Display field -1- indicates request to input display group.
- Display field -2- shows input keyboard.
- Input via the keyboard in display field -2- the desired display group (e.g. "001" or "01") overview of display groups numbers which can be selected and accept by touching the Q-button.
Indicated on display of VAS 5051:
- Display field -1- shows the selected display group.
- Display field -2- shows the values of the four display fields:
- The value of display field -1- is shown in the first row.
- The second, third and fourth rows show the value of the respective display fields.
- If a display field is not assigned, no display occurs in this row.
- By touching button -3- you can switch to another display group.
- You can switch to another function (e.g. from "Basic setting" to "Read Measuring Value Block" and back) by touching button -4-.
- Input display group number; overview of display group numbers which can be selected.
Overview of selectable display group numbers
Display Group 001 - 004:
Display Group 005 - 009:
Display Group 010 - 011:
Display Group 012:
Display Group 013 - 014:
Display Group 015 - 016:
Display Group 017 - 018:
Display Group 019 - 020:
Display Group 021:
Display Group 022 - 081:
Display Group 026 - 124:
Display Group 125 - 127:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.