heater AUDI A4 1999 B5 / 1.G AFC Engine Assembly Workshop Manual

10-6

- Disconnect harness connectors at Mass Air
Flow (MAF) sensor and Idle Air Control (IAC)
valve, unbolt hose from plenum chamber and
unclip.

- Disconnect hose connection at IAC valve.

- Remove air guide between air cleaner and
throttle body.

- Remove air cleaner housing.

- Disconnect fuel supply and return lines.

- Remove coolant expansion tank.

- Remove cover for electronics box.
- Unclip engine control module and disconnect harness connectors.
- Disconnect harness connectors at connector station below engine
control module.
- Disconnect ground connection and bracket for harness connectors at
plenum chamber.
- Disconnect both coolant lines to heater core between plenum chamber
and engine.
- Disconnect accelerator pedal cable and let hang free.
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