Audi Workshop Service and Repair Manuals

Checking with engine leak detector spray G 001 800 A1

Notes:

• ◆ The vacuum in the intake system will cause the leak detector spray to be drawn in with the unmetered air. The leak detector spray reduces the ignitability of the mixture. This leads to a drop in engine speed and to a significant increase of the CO content.
• ◆ The safety precautions listed on the container must be adhered to.

• ‒ Connect the vehicle diagnostic, testing and information system VAS 5051 or fault reader V.A.G 1551 and select the engine electronics control unit with "address word" 01 .
  For this purpose, the engine must be running at idle speed

• ‒ Press keys 0 and 8 for the function "Read measured value block" and confirm entry with Q key.

• ‒ Press keys 0, 0 and 1 for "Display Group 01" and confirm entry by pressing Q.

• ‒ Note engine speed in display zone 1.
• ‒ Systematically spray parts of the intake system with engine leak detector spray.

If engine speed does not change:

• ‒ Press ⇒key.
• ‒ Press keys 0 and 6 for the "End output" function and press the Q key to confirm entry.

If engine speed drops:

• ‒ Press ⇒key.
• ‒ Press keys 0 and 6 for the "End output" function and press the Q key to confirm entry.
• ‒ Check sprayed areas of intake system for leaks and rectify if necessary.