Reading Measuring Value Blocks

Read Measuring Value Block (Function 08)

- VAG1551 scan tool with VAG1551/3B cable

Test conditions
- Coolant temperature must be at least 80 °C, See display group 04, display zone 3.
- All electrical consumers, e.g. lights and rear window heating must be switched off
- If the vehicle is equipped with an air conditioner, this must be switched off.
- On vehicles with automatic transmission selector lever in "P" or "N" position
- No DTCs must be stored in DTC memory, checking DTC memory

Work sequence
- Connect VAG1551 scan tool (VAG1552). Start engine and select "Address word" 01 of engine control module. Engine must be running at idling speed. (Connecting scan tool and selecting engine control module.) [1][2][3]Connecting VAG 1551 Scan Tool

Indicated on display:


Rapid data transfer HELP
Select function XX


- Press keys 0 and 8 for function "Read Measuring Value Block" and confirm entry with Q key.

Indicated on display:


Read Measuring Value Block HELP
Input display group number XXX


- Select required display group number.


NOTE: The display group number 1 is an example, to illustrate the sequence.


- Press keys 0, 0 and 1 for "Display group number 1" and confirm entry with Q key.

Indicated on display: (1 to 4 = Display zones)


Read Measuring Value Block 1 ->
1 2 3 4


NOTE: To change to another display group proceed as follows:







- If specifications in all display zones are obtained, press -> key.

Indicated on display:


Rapid data transfer HELP
Select function XX


- Press keys 0 and 6 for "End data transfer" function and confirm input with Q key.


NOTE: Measured value blocks which are not described in this chapter are currently only intended for the research and development and production. The values displayed are not relevant for service department troubleshooting.