Audi Workshop Service and Repair Manuals

Notes:

• ◆ After replacing the engine control unit or the exhaust gas recirculation valve -N18, the engine control unit and exhaust gas recirculation valve must be adapted to one another.

=> Simos Fuel Injection and Ignition System; Repair group 24

• ◆ Check the adaption status and the zero position before performing repair measures.

Special tools and workshop equipment required

• ◆ VAS 5051 with VAS 5051/1

Test sequence

• ‒ Connect vehicle diagnostic, testing and information system VAS 5051 and select vehicle system "01 - Engine electronics". For this purpose, the engine must be running at idling speed.

=> Simos Fuel Injection and Ignition System; Repair group 01

→ Display on VAS 5051:

• ‒ Under -1- select diagnostic function "08 - Read measured value block".

→ Display on VAS 5051:

•     1 -    Enter display group

• ‒ Enter "074" for "display group number 074" in zone -2- and confirm the entry by pressing the Q key.

→ Display on VAS 5051:

• ‒ Check readout in display zones -1- and -4-.

Note on display zone 4:

"ADP" in display zone 4 stands for "Adaption".

• ‒ Exit function "08 - Read measured value block" by pressing the ◂ key.
• ‒ Press "06 - End output".
• ‒ Switch ignition off.