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Audi A4, S4since 2000 of releaseRepair and car operation |
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Audi A4, S4 + Introduction + Governing bodies and receptions of safe operation + Current leaving and service - Engine Specifications Removal and installation of the top cover of the engine / bottom protection of an impellent compartment/stretcher Compression check in engine cylinders, identification of leaks Engine check by means of the vacuum gage + 4-cylinder petrol engines + 6-and 8-cylinder petrol engines + 4-cylinder diesel engines + 6-cylinder diesel engines - System of greasing of the engine General information Applied impellent oils. Consumption of oil Oil pump and case pallet Check of pressure of oil and pressure sensor + Systems of cooling, heating and air conditioner + Power supply systems, release and decrease in toxicity of the fulfilled gases + Systems of electric equipment of the engine + Manual box of gear shifting + Automatic transmission + Coupling, power shafts and differential + Brake system + Suspension bracket and steering + Body + Onboard electric equipment |
Applied impellent oils. Consumption of oil Greasing of the engine is carried out by all-weather oil that does not demand seasonal change oils (summer/winter). All-weather oils are based on seasonal oil with low viscosity (for example, 10 W) and are stabilized in a hot condition by means of «the viscosity stabilizer». Thanks to it possibility of greasing both cold, and the hot engine is provided. Designation on SAE characterizes viscosity of impellent oil. Example: SAE 10 W 40: 10 — Viscosity of oil in a cold condition. The number less, the oil has smaller viscosity. W — Oil is suitable for operation in the winter. 40 — Viscosity of oil in a hot condition. The more hot oil has number, the smaller viscosity.
Impellent Longlife oil Engines of AUDI A4 cars are filled at plant with Longlife special oil. At Longlife oil application according to norms of VW, the two-year interval of service is provided. Also usual impellent oil according to norms of VW can be applied. But in this case the interval of service should be reduced till 12 months of/15.000 km. Types of oils are given in Specifications.
Consumption of oil At internal combustion engines the consumption of oil is understood as its such quantity which is consumed owing to combustion process. It is not necessary to confuse a consumption of oil to its loss arising owing to a leakage of the pallet of a case, a cover a head of cylinders, etc. The normal consumption of oil arises owing to combustion of a small amount of oil in cylinders, owing to branch with products of combustion and wear products. Besides, oil is lost owing to high temperatures of combustion and the high pressure, taking place at operation of the engine. The consumption of oil is influenced by also external service conditions, such as management style the car, and also admissions of manufacturing of details of the engine. The consumption of oil should not exceed 0.8 l/1000 of km.
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