Audi A4, S4

since 2000 of release

Repair and car operation

Check of levels of liquids, control of leaks

Below procedures of check of levels of the liquids, made each 1000 km of run, monthly and before each distant trip are described. The description of other checks of levels of liquid can be found further in the Sections devoted to specific procedures of service. Irrespective of check intervals according to the schedule do not allow, that liquid followed under the car, such leaks indicate malfunction which it is necessary to eliminate immediately.

Liquids are the integral component of systems of greasing, cooling, brake and systems of washing of a windscreen. In view of a gradual expense and/or pollution of liquids in the course of normal operation of the car, it is necessary to replace them periodically. Familiarize with the Section «Types and volumes of applied greasings and liquids» in Specifications before starting a liquid dolivaniye in any of listed a component.

At any check of level of liquid the car should stand on an equal surface.

Visual control of leaks

PERFORMANCE ORDER

Remove the top cover of the engine, address to the Section Removal and installation of the top cover of the engine / the bottom protection of an impellent compartment/stretcher. Remove the bottom cover of the engine, address to the Section Removal and installation of the top cover of the engine / the bottom protection of an impellent compartment/stretcher. Visually check on existence of a leakage, attritions, cracks and damages the following pipelines, hoses and accessions: Toplivoprovoda; Hoses of system of cooling and heating; Brake pipelines and hoses; Hydraulic lines of the amplifier of a wheel; Conditioner lines.

Impellent oil

PERFORMANCE ORDER

At the greasy engine and a big consumption of oil check places of leaks. The following places are for this purpose checked: Open a cover of a jellied mouth and check laying on existence of cracks or damages. Case ventilation: For example, a ventilating hose from a cover of a head of cylinders to a hose of absorption of air. Laying of a cover of a head of cylinders. Laying of a head of cylinders. Stopper of removal of oil (round ring). Laying of the oil filter: a filter prileganiye to a flange. Laying of the pallet of a case. Forward and back epiploons of a cranked shaft. As in the presence of a leakage oil extends on a big surface of the engine, a place of leaks at once difficult to define. For detection of leaks act as follows: Wash out the engine as follows: the generator close a plastic package. Spray the engine a usual cold cleaner and through short time wash out water on a car wash. Places of interface and epiploons on the engine strew outside with lime or talc. Check oil level, if necessary add. Make a trial trip. As oil in the hot engine reduces the viscosity and quicker acts in places of leaks, it is necessary to execute a trial trip on distance about 30 km on the high-speed route. In summary investigate the engine by means of a lamp and localize places of leaks, having eliminated malfunctions.

Check of level of oil shchupy

Check of level of oil is important preventive procedure. Continuous falling of level of oil indicates or existence of its leaks through the damaged epiploons or weakened connections, or on its burning out (internal leaks through worn-out piston rings or via directing plugs of valves). Besides, it is necessary to pay attention and to a condition of the oil. If oil has dairy color or in its structure it is possible to notice water drops, it indicates possible violation of tightness of laying of a head of cylinders or crack existence in a head or the block of cylinders. In this case the engine should be repaired immediately. Each time at measurement of level of oil before edge rubbing щупа carry out on it big and index hand fingers. If will be thus found stuck on щуп particles of dirt or metal particles, oil it is necessary to replace (address to the Section Replacement of impellent oil and the oil filter).

PERFORMANCE ORDER

Pass on the car to warm up the engine, and stop the car on an equal platform. After a stop of the engine wait for not less than 3 mines that oil flew down in the pallet. Take out the index of level of oil of the engine and wipe it a pure rag. Then insert the index into an opening against the stop and again take out it. Level of oil is in norm if lies in a range (In). If level of oil lies in a range (C), oil is necessary for adding to range level (In). On an accompanying illustration different options of execution of indexes of level are shown. If oil is in a range (And), to add it does not follow. Surpluses of oil (above a range And) are necessary for sucking away, since laying or epiploons of the engine and the catalytic converter otherwise can be damaged. At raised loads of the engine, for example, at long movement on the highway in the summer, towage of the trailer or movement in the mountain district level of oil should lie in the top part of a range (In). System filling with oil is made through a stopper of a cover of a head of cylinders. Apply a demanded grade of oil, do not use an additive, address to the section System of greasing of the engine.

Consumption of impellent oil

Max. 0.8 km l/1000, depending on style of driving.

The consumption of oil can be defined by the engine only after passing of a long distance. In a running in it can exceed the given value. Frequent movement with high turns of the engine conducts to increase in a consumption of oil.

Cooling liquid of the engine

All cars considered in this Management, are equipped with cooling system with superfluous pressure of compensatory type. The white plastic broad tank is located in an impellent compartment and connected by a hose to a radiator. In process of an engine warming up in the course of its work extending liquid fills a tank. When cooling engine liquid automatically arrives back in cooling system that provides maintenance of constant level.

Check of level of liquid in the tank should be made regularly, at strictly horizontal position of the car and the switched-off engine.

Level of cooling liquid at the cold engine (temperature near + 20°С) should be between marks of MAX and MIN in a broad tank. At the warm engine level of liquid can be slightly higher than MAX mark.

Do not uncover a jellied mouth of a broad tank or a radiator cover for check of level of liquid before complete cooling of the engine!

Banish the car and again measure liquid level. If to the necessary level it is required to add only small amount, it is possible to use pure water. However frequent additions of water will dilute antifreeze. To provide a normal ratio (40 %/60 %) antifreeze and water, always add to the necessary level a demanded mix of the antifreeze specified in Specifications, on a basis этиленгликоля and waters.

Large volume of cold cooling liquid fill in only at the cold engine to avoid engine damages.

If level of liquid falls regularly, in system leak existence is possible. Examine a radiator, hoses, a cover of a jellied mouth, drain jams and the water pump (address to the Section Check of a condition and replacement of hoses of an impellent compartment, localization of leaks). If leaks it is not revealed, make check of tightness of a cover of a broad tank and a radiator in conditions HUNDRED.

If you need to uncover, wait, while the engine completely will cool down, then wrap up a piece of thick rags round a cover and unscrew it to the first emphasis. If thus from under a cover steam or liquid starts to escape, let's to the engine cool down a little more, and only then uncover.

It is necessary to check a liquid condition also. It should be rather pure. If liquid has brown or rusty color, it it is necessary to merge, wash out system and to fill it with a new mix. Even if liquid looks normally, inhibitors of corrosion entering into its structure lose over time the efficiency therefore it is necessary to replace it through certain periods.

For check of frost resistance of cooling liquid it is necessary to use the areometer (address to an illustration and Specifications).

Brake liquid

Brake liquid can harm your eyes and damage the painted surfaces of the car therefore be extremely careful at the treatment of her. Do not use brake liquid which long time stood opened or to which is more than one has some. Brake liquid has property to absorb moisture from air that can lead to dangerous loss of efficiency of brake system. Use only the recommended type of brake liquid. Mixing of various types of liquid can lead to refusal of brake system.

The tank of brake liquid is behind at the left in an impellent compartment. It has two chambers, everyone for the brake contour.

Level of brake liquid is checked visually, on labels on the plastic tank established on the main cylinder. At the closed cover level of brake liquid should be between MAX and MIN.Если marks level is lower admissible, at first wipe top of the tank and a cover pure rags to prevent dirt hit in system after cover removal. Add to the necessary level the recommended liquid, but do not pour.

While the tank cover is removed, check liquid and the tank of the main cylinder on existence of pollution. If at it there are particles of a rust, dirt or a water drop, liquid from system it is necessary to merge and fill in the new.

After tank addition to the necessary level make sure that the cover is established exactly, in order to avoid leakages of liquid and/or dirt hit.

Liquid level in the main cylinder will fall slightly as a result of wear process of frictional overlays of brake shoes. There is no need to add it until level remains near «MIN» label; it will rise after replacement of slips. Very low level can indicate wear of brake shoes. Check them on wear existence (address to the Section of Check of brake system. Adjustment of the parking brake).

If level of brake liquid constantly falls, immediately check all system on existence of leaks. Survey brake lines, hoses and shtutserny connections, together with supports, wheel cylinders and the main cylinder (address to Sections of Check of brake system. Adjustment of the parking brake, Check of a condition and replacement of hoses of an impellent compartment, localization of leaks).

If at check of level of liquid the tank appears is empty or nearly is empty, the brake system should be checked on existence of leaks and is pumped over (address to Head Brake system).

GUR liquid

The tank of hydraulic system of the amplifier of a steering is in a back part of an impellent compartment. Address to the Section Check of level of liquid of system of hydrostrengthening of a wheel.

Liquid of a washer of a windscreen

The concentrate of steklomoyushchy means is easily combustible.

At the address with a concentrate of steklomoyushchy means application of fire, an open flame and smoking are forbidden.

Open a cover and check visually liquid level.

If necessary add a mix from a concentrate for a sink of glasses and drinking water.

Capacity of the tank is given in Specifications.

In areas with a temperate climate it is possible to fill system with usual water, but it is recommended to add in water means for washing of glasses. The tank should be filled no more, than on two thirds that there was a free space on a case of expansion of water when freezing. In areas with cold climatic conditions it is necessary to use special antifreeze for the windscreen washing, reducing a freezing point of liquid which can be got in any shop of automobile accessories. Usually it is on sale in the concentrated or ready look. If you got the concentrated antifreeze, mix it with water according to the instruction of the producer on packing.

For models with warmed jets, as a rule, sufficient frost resistance of a mix to - 10°С.

Do not use antifreeze of system of cooling - it will damage the painted surfaces of the car.

Check adjustment of jets, address to the Section Removal and installation of a jet of a stekloomyvatel of a windscreen.