audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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3-pin relay carrier,E-box

Measure to

plenum chamber, position 3
Terminal

6

46

-

Specified value: Wire resistance max 1.5 Ohms

-

Also check the wire for short circuit to B+ and Ground (GND).
-

Specified value: Infinity Ohms (no continuity)

If no malfunctions are detected:

-

Replace Secondary Air Injection (AIR) pump relay -J299-.

Check voltage supply of the Secondary Air Injection (AIR) pump motor

-

For vehicles with auxiliary heater, remove bolts (arrows) for exhaust pipe of parking heater/auxiliary heater on noise insulation.

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Loosen mounting parts -1- to -4- and remove noise insulation.

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