The Audi S4 was formerly known as Audi 100 S4. During the development of the Audi S4, many popular parts have been built such as the idler pulley. There can be one or more idler pulleys along the timing chain and each can come in different sizes. The main function of the idler pulley is to provide tension and conduct the engine drive belt.
Although Audi S4 has lots of auto parts with impressive performance, idler pulley parts still need repair and maintenance after a long time of usage. The removal process for idler pulley parts is as follows. First, open the hood, next remove the engine drive belt, then locate the idler pulley, remove the mounting bolt for the idler pulley, and remove the pulley from the engine. An idler pulley should be replaced every 50,000 to 100,000 miles. Choose among a vast selection of auto parts for Audi S4 at varied prices online. We offer Audi S4 parts of great value, practicality, and durability.