Audi 100 C3 owners manual page 155

text version of content this owner's manual page from owners manual to the vehicle Audi 100, year of production 1982 - 1991:

TECHNICAL DESCRIPTION EMISSION CONTROL SYSTEM In the interest of clean ai r Catalytic converter Oxygen Sensor (OXS) Pollution of our environment has become The catalytic converter is an efficient The oxygen sensor, installed in the a problem that is of increasing concern to "clean-up" device built into the exexhaust haust manifold, continuously senses all of us. We urge you to join our us in system of the vehicle. The catalythe oxygen content of tic the exhaust and efforts for cleaner air in controlling the converter burns the irable signals the information to an undeslectronic e pollutants emitted from the automobile. pollutants in the exhaust gas before it is control unit. released into the atmosphere. You can make a significant contribution Carbon canister to keeping our air clean by: The exclusive use of unleaded fuel is The vehicle is equipped with a carbon Always using lead free gasoline. critically important for the life of the catalytic conver ter and the proper fun-canister to prevent fuel vapor from Not letting your vhicle idle eunne- ctioning of the engine. escaping into the atmosphere. cessarily. The catalytic converter will be perma-The vapor is passed into the carbon Following the recomme nded preven-nently damaged by canister, where it is retained when the chedule contained in tive maintenance s engine is turned off. When the engine is the maintenance booklet. exceeding the "Max" marking when adding engine oil (see page 105) running, a valve allows air into the Not removing or altering the emis- canister, and the fuel vapor is passed to sion control system. push or tow starting your ve hicle the engine for combustion. misfiring of the engineer Taking the precautions described The system does not require any mainte- below to prevent damage to the emission nance. control system in your vehicle. other unusual operating conditi- ons. Audi warrants the Emission Control Sys-Do not continue to operate your tem in your new vehicle under the terms vehicle under these conditions, as and conditions set forth in the Warranty booklet. otherwise fuel can reach the catalytic converter. This could result in over- heating of the converter, requiring its Your Audi is equipped with an emission replacement. control system, which contains the follo- wing major components: 153

owners manual Audi 100

owners manual Audi 100 - year of production: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 - Audi 100 C3 owners manual EN