Aging Check

Oxygen Sensor Aging (Oxygen Sensor Before Catalytic Converter), Checking

Special Tools and Equipment







- VAG1788/10 RPM adjuster







- VAS5051 with VAG5051/1
or
- VAG1551 with VAG1551/3B

Test requirement:
- Coolant temperature at least 80 ° C See Display group 4, display field 3

Test sequence
- Connect VAS5051 tester or VAG1551 scan tool and select the control module for engine electronics using "address word" 01. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAS5051/VAG1551 Scan Tool" Testing and Inspection
Engine must run at idle for this.

When indicated on display:


Rapid data transfer HELP
Select function XX


- Press buttons -0- and -4- to select "Initiate basic setting" and press -Q- button to confirm input.

When indicated on display:


Basic Setting Q
Input display group number XXX


- Press buttons -0-, -3- and -4- to select "display group number 034" and press -Q- button to confirm input.

When indicated on display:


System in Basic Setting 34 ->
1 2 3 4


- Use VAG1788/10 RPM adjuster to adjust engine speed to between 1000 and 2400 RPM.
- Check specified value in display field 4 after indication "Test ON" appears:


NOTE: This process can take a few minutes.

Display group 034:

- Press -C- button.

When indicated on display:


Basic Setting Q
Input display group number XXX


- Press buttons -0-, -3- and -5- to select "display group number 035" and press -Q- button to confirm input.

When indicated on display:


System in Basic Setting 35 ->
1 2 3 4


- Check specified value in display field 4.


NOTE: The test in display group 035 is activated simultaneously with the test in display group 034 Therefore the test result is indicated immediately after display group 035 is selected.

Display group 035: