Emission Applications

1999 Audi

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

A4, A4 Quattro & A4 Avant Quattro 1.8L Turbo SFI (Bosch Motronic)

PCV, EVAP, TWC, FR, SPK, ⁽³⁾ HO2S, CEC, MIL
EVAP-CKV, EVAP-CPRV, EVAP-LDP, EVAP-VC, SPK-CC

...

A4, A4 Quattro & A4 Avant Quattro 2.8L V6 SFI (Bosch Motronic)

PCV, EVAP, ⁽³⁾ TWC, FR, SPK, ⁽⁴⁾ AP, ⁽³⁾ HO2S, CEC, MIL
EVAP-CPRV, EVAP-LDP, EVAP-VC, SPK-CC, AIS-SV

...

A6, A6 Quattro & A6 Avant Quattro 2.8L V6 SFI (Bosch Motronic)

PCV, EVAP, ⁽³⁾ TWC, FR, SPK, ⁽⁴⁾ AP, ⁽³⁾ HO2S, CEC, MIL
EVAP-CPRV, EVAP-LDP, EVAP-VC, SPK-CC, AIS-SV

...

A8 Quattro 3.7L & A8 Quattro 4.2L (Bosch Motronic)

PCV, EVAP, ⁽³⁾ TWC, FR, SPK, ⁽⁵⁾ HO2S, CEC, MIL
EVAP-CPRV, EVAP-LDP, EVAP-VC, SPK-CC

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See AUDI in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Equipped with 2.

⁽⁴⁾	AP is an electric motor. Located in right front corner of engine compartment.

⁽⁵⁾	Equipped with 4.