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REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Audi A6 (1997 release)

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Audi A6
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Audi
A6
General Information
Operation of the vehicle
Maintenance
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Ignition, fuel injection and exhaust of gasoline engines
The power supply system, and preheating the exhaust gases of diesel engines
Lubrication System
Cooling system
Coupling
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The front wheel drive shafts
Design features four-wheel drive transmission
Suspension
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Steering
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Body
Heating and air conditioning
Electrical
Overview
General recommendations
Circuit breakers
Fuse
Electronic engine control unit
Accumulator battery
Generator
Engine Starting System
Starter
Check and removal of the traction relay of a starter
Headlights
Replacement of lamps of external lighting
Engine corrector headlights
Front fog lights
Side repeater rotation
Back light
High level brake light
Replacement lamps auxiliary lights
Device combination
Cylinder ignition
Egnition lock
Switches of the central section of the instrument panel
Switch the heater front seats
Switches the rear section of the center console
The switch of external illumination
Switch adjustment of the rear-view mirror
Window switches on the driver
Radio
Speakers front / back door
Rear Defrost
Electric schemes
 


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Accumulator battery



The battery is located on the right rear of the luggage compartment under the floor panel.
When disconnecting the battery terminals in the memories are erased controls data stored faults, so before disconnecting terminals are advised to contact a specialized workshop for the Memory Recall recorded in her fault. After connecting the battery terminals it is necessary to activate and reprogram the power windows and the position of the door mirrors and seats.
If the car is equipped with a radio code before disconnecting the battery terminals, check whether you have the code to reactivate the receiver. Otherwise, enter the radio operation will be possible only in a specialized workshop.
A new battery must be equipped with an exhaust outlet formed in the battery.

Rules of care of the battery
To maintain high performance battery for a long time, it is necessary:
- With the engine off, turn off all electrical appliances in the car;
- Disconnect the negative terminal of the battery;
- Every 15-20 days (over 2500 km), empty battery from dirt in order to avoid its self-discharge. With the same purpose should be to eliminate drips electrolyte and isolated from the mounting frame;
- The battery must be securely attached to the vehicle. Make sure that the tips of the wires have been firmly anchored at the battery terminals, otherwise the risk of explosion;
- Battery can operate continuously in "starter" mode of no more than 15 seconds; a break between the cycles must be at least 60 seconds;
- Periodically check the voltmeter the pressure developed by the generator. Indications must be removed directly at the battery terminals while running, the engine is warm. The voltage should be within 13,8-14,5 V;
- Served on batteries, it is desirable every 3000 km check the level and specific gravity. The electrolyte level checked by a special mark on the transparent housings or with a special glass tube in opaque cases. The electrolyte should be 10-15 mm close the upper edge of the plate. The density of the electrolyte is checked with a hydrometer. If the density is below 1.23 g / cm3 in winter and 1.19 g / cm3 summer needs recharging;
- Even if the generator and the voltage regulator are correct, and the electrolyte level is normal, charging with the charger is needed once a month in winter and every six months in other seasons;
- Flooded electrolyte battery can only store a fully charged, the density of the electrolyte must be checked once a month.

Useful tips
Battery charging current is carried out, the strength of which is 0.1 times the rated capacity. For example, the battery capacity of 50 A / h is necessary to charge a current of 5 A, when screwed out filler plug.
It is not necessary to fill in the battery electrolyte with a density greater than 1.28 g / cm3. Thus attempting to increase the inrush current can be very short time damage the battery. For the same reason, to bring the electrolyte level back to normal only with distilled water.
In the opaque served battery electrolyte level can be measured by means of a hollow glass tube, covering one end of the finger. To take the "sample" the height of the liquid column inside the tube will correspond to height of excess electrolyte of the upper edges of the plates.
Remove drips electrolyte or neutralize the effects of the electrolyte in the surrounding objects can be with the help of a 10% solution of ammonia or baking soda.

A WARNING
Do not operate a discharged battery, especially in winter.
The battery is discharged too high percentage of water in the electrolyte, it may freeze and damage the battery case. Do not attempt to charge a frozen battery current or to let the car from an outside source. Allow the battery to thaw, and then try to recover its work force of low charging current. Such a battery can still serve.


The crack in the bank serves the battery does not always require replacement. Pour the electrolyte dry, clean gasoline crack and treat it with a file. The sawdust generated during cutting cracks, mixed with epoxy glue or putty. The resulting composition carefully seal the crack. After this procedure, the electrolyte pour no sooner than 24 hours.

Checking the battery
Check the density of the electrolyte in the battery every 3 months.
Checks are made hydrometer. When the density of the electrolyte is necessary to consider its temperature. If electrolyte temperature is below 15 ?� C for every 10 ?� C below this temperature from the measured density subtract value of 0.007 g / cm3; above 15 ?� C, add 0.007 g / cm3.
The density of the electrolyte in the battery, depending on the ambient temperature must be within the following limits:

A battery
Above 25 ?� C
Below 25 ?� C
Fully charged
1,210-1,230 g / cm 3
1,270-1,290 g / cm 3
Charged 70%
1,170-1,190 g / cm 3
1,230-1,250 g / cm 3
Fully discharged
1,050-1,070 g / cm 3
1,110-1,130 g / cm 3

The density of the electrolyte was measured in each bank. The difference in the density of 0.04 g / cm3 or more between any two banks indicates the loss of sulfation or the electrolyte plates.
If the specific gravity between any two banks differs by more than 0.04 g / cm3, the battery should be replaced. If the density of the electrolyte below demanded, but identical in all banks, the battery must be recharged.
The efficiency of maintenance-free batteries can only be checked with a voltmeter. The charge level of the batteries with built-in indicator is determined by the color of the indicator. Green color of the indicator corresponds to full charge, Black - indicates the need for charging, blue - indicates a low level of electrolyte in the battery.

Charging the battery
Before charging, remove the battery from the vehicle.
To charge the battery or use the charger-starter. Charge the battery current, the battery capacity of 0.1 as long as the density of the electrolyte will not increase for 4 hours.
Do not use high current for quickly charging the battery, since in this case it may occur buckling plates due to overheating.
During charging, the battery electrolyte temperature does not exceed 37,8 ?� C.

Withdrawal
Switch off the ignition.

The direction of removal of the rubber seal waterproof housing
Fig. 18.5. The direction of removal of the rubber seal waterproof casing: 1 - waterproof casing


Remove the rubber seal waterproof housing at the rear of the engine compartment (see. Fig. 18.5).
Remove the waterproof casing 1 (see. Fig. 18.5).
Loosen the nut, remove the negative terminal of the battery and move it to the side.
Loosen the nut and remove the positive terminal of the battery and move it to the side.

Fasteners battery
Fig. 18.8. Fasteners battery 1 - battery; 2 - an arm; 3 - a bolt


3 Remove the bolt (Fig. 18.8) and remove the mounting bracket 2 Battery 1.

Connection hose for venting to the battery
Fig. 18.9. Connection hose for venting to the battery


Disconnect the battery venting hose (Fig. 18.9).
Remove the battery from the vehicle.

Setting
Installation is spent to sequences, return to removal, taking into account the following.
When installing do not press a hose designed to remove gases released during operation of the battery. The pipeline has a venting valve, which protects the battery from backfiring.
Secure the battery bracket and replace the bolt of its fastening, tightened its moment of 15 Nm.
Check for loose battery as otherwise the battery life may be shortened.
Connect to the positive terminal of the battery first, then negative, and secure them by tightening the nuts to 6 N ?� m.
Turn on the radio and enter the code.
Lift up the power window glass until it stops. Then press all the switches window again, at least 1, in the closed position of the control unit to activate windows.
Set the clock.

Charging System
If the warning light does not burn battery when the ignition is on, check the wiring to the alternator warning lamp serviceability and integrity of its chain. If the lamp still does not burn, check up an electric chain from the generator to the lamp. If all electrical connections are correct, then the generator is defective and should be replaced or repaired.
If the warning lamp lights up when charging the engine, stop the engine and check the condition and the tension drive a generator belt, and also connection of wires to the generator.
The voltage regulator can be checked as follows.
Connect a voltmeter to the battery and start up the engine.
Increase the speed to stabilize the voltmeter which should show in the 12-13, but not more than 14 V.
Turn on the maximum number of electrical consumers (lights, rear window heater, the heater fan). The voltage produced by the generator voltage regulator, should be 13-14 V.
If the voltage does not match these values, the cause of the fault may be worn brushes of the generator, weak springs of brushes, a faulty voltage regulator or a diode, winding breakage of the stator or defective contact rings of a rotor.




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