Audi A4
+ Running gear
+ Regular servicing
+ Engines
+ Turbo-supercharging
+ System of an exhaust
- Cooling system
So there is a cooling
Check of level of cooling liquid
Antifreeze check
Check of the cooling system on tightness
Radiator
Locking cover of the cooling system
Thermostat
The help at malfunctions
Water pump
Maple belt of the water pump
Various models of fans
Viscous fan
The radiator fan with the electric drive
Violations in operation of the fan of a radiator
The help at malfunctions
+ Fuel tank and fuel pump
+ Air filter and channels of absorption
+ System of injection
+ Coupling
+ Transmission and main transfer
+ Suspension bracket of wheels and steering
+ Brakes
+ Wheels and tires
+ Electrotechnical equipment
+ System of ignition
+ Lighting
+ Alarm equipment
+ Tools and devices
+ Heating and ventilation
+ Body details
+ Salon
Search of malfunctions
Technical characteristics
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Water pump
Cooling liquid by means of the water pump circulates in the closed contour.
At the four-cylinder engine the water pump settles down in the direction of travel ahead at the left at the engine and is put in action by a maple belt.
At the six-cylinder engine the water pump is put in action by outer side of a gear belt.
The water pump is not subject to maintenance. If it loses tightness or makes the milling sounds, it needs to be replaced – repair is impossible. The water pump at the four-cylinder engine settles down at the left ahead at the engine.
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The water pump (shooter) of the six-cylinder engine is ahead at the engine block. It has a drive from a reverse side of a gear belt. |
Dismantle of the water pump
Four-cylinder engine
New laying is in addition used. The one who buys the water pump on a fold of the spare parts Audi on exchange receives the pump assembled with the case (it is a back detail of a pump housing). As a new detail of Audi only the separate "case of the bearing", i.e. a forward part of the pump with a bladed wheel, the bearing and a flange is delivered. Shops get only this knot.
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- Dismantle of the case of the bearing: in the beginning take off poliklinovy and maple belts.
- Dismantle the device a tension of a poliklinovy belt.
- Dismantle the top and lower covers of a gear belt.
- Dismantle a gear belt and a pulley of a gear belt of an intermediate shaft.
- Weaken seven screw connections between the forward case of the bearing and the case of the water pump. The wheel of the pump settles down in the bearing case.
- Replace laying between the case of the bearing and the case of the water pump.
- At installation screw up the case of the bearing on 10 Nanometers, fixing bolts of a pulley of a maple belt of the water pump on 20 Nanometers.
- Impose a gear belt, establish gas distribution phases.
- Dismantle of the case of the water pump assembled: a way of actions the same that it is described regarding the case of the water pump, but it is not necessary to take off a gear belt. This method assumes dismantle of an arm of the generator and a servonasos. At installation it is also necessary to replace laying between a pump housing and the block of the engine.
- Inhaling moments: arm of a servonasos: 25 Nanometers, generator arm: 35 Nanometers.
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Dismantle of the water pump
Six-cylinder engine
In this case dismantle of the case of the water pump by own efforts and, besides, removal of a gear belt is impossible. Therefore previously find out, there are for these purposes necessary tools.
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- Dismantle a klinovo-ridge belt (section Generator).
- Dismantle a gear belt (head Dvigateli).
- Weaken nine bolts ahead on the case of the water pump, remove the case.
- At installation replace laying, bolts in two steps tighten with effort 10 Nanometers in the end.
- Impose a gear belt, surely check gas distribution phases (head Dvigateli).
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