Volkswagen 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 outside 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 ignition tester V.A.G 1367 with pick-up clamp V.A.G 1367/8 or ignition tester V.A.G 1767.
• ‒ → Connect CO tester V.A.G 1363A with adapter V.A.G 1363/3 to CO sampling pipe.
• ‒ Start engine and run at idling speed.
• ‒ Systematically spray parts of the intake system with engine leak detector spray.

If the engine speed drops and the CO content changes:

• ‒ Check for leaks in the area of intake system sprayed and eliminate leak.