Audi A3

Since 1997 of release

Repair and car operation

The general information and security measures

THE GENERAL DATA

Cars of the given models have "universally-kuzovnuju" the scheme where the panel of a floor with the forward and back lateral beams (longerons) of a frame playing a role of carriers of other details of a body of the car, forward and back suspension brackets and other mechanical components is used. Wind and back has flown down are pasted. Some of components are especially vulnerable at failures both can be отболчены and are repaired or replaced. The cowl, a cover of a luggage carrier, a door and forward wings concern them. At installation it is necessary to observe backlashes, otherwise, for example, the door will knock or the raised noise from a wind will be observed at movement. The backlash should be, at least, parallel on the extent, i.e. the distance between body parts should be maintained to constants on all length. Maximum deviations to 1 mm.

In the course of manufacture the car body is completely zinced. External elements of a body have электролитическое a zinc covering as such kind of a covering is technological at drawing of a paint and varnish covering and is easily deformed. Internal and invisible elements of a body have cheaper hot цинкование. For increase of corrosion firmness in addition all hollow details of a body are filled by wax, and the sheeting is put on the bottom. Bumpers and локеры arches of a wheel for durability and durability are made of plastic.

At dismantling and assemblage try not to put damages to consolidations and the anticorrosive covering put by manufacturer.

Before the beginning of works with the panel of devices, дверьми or any devices of an electric equipment remove a wire of weight from the accumulator. For this purpose familiarise with remarks in subsection Removal and installation of the storage battery and subsection Input of a code of a radio receiver.

Security measures at carrying out кузовных works

– At body repair it is necessary to apply spot welding. Only if it is impossible to bring electrodes to a welding place, it is necessary to apply welding in the environment of inert gases. As the body is completely zinced, it is necessary to accept following security measures:
– At carrying out of welding works or any other works connected with formation of sparks, necessarily disconnect the storage battery (positive and negative cables) and carefully isolate both plugs (–) and (+). At performance of works near to the storage battery, it is necessary for removing.

ATTENTION

At battery removal the data from electronic blocks of memory, in particular, a radio receiver code is erased. Without a code the radio receiver can be included only its manufacturer or HUNDRED AUDI. Therefore read remarks in subsection Input of a code of a radio receiver.
At welding of the zinced sheets it is formed poisonous оксид zinc. Therefore it is necessary to watch good ventilation of a workplace.
Increase a welding current on 10, a maximum of 30 %.
Apply electrodes from firm copper with high thermal firmness (above + 400°С).
To thicket clear electrodes and process them till diameter of a contact surface of 4 mm.
Raise pressure upon an electrode.
Increase welding time. Time is chosen truly if welding points are put without splashes.
The details of the conditioner filled with a working body, it is impossible to weld and solder both soft, and firm solder. It concerns also a situation when there is a danger of heating of elements of the conditioner at welding or a ration of other elements of a design.

In addition

It is not necessary to open a contour of cooling of the conditioner since the coolant at hit on a skin can cause обморожение.

At drawing of a paint and varnish covering in сушильной furnaces heating of the car to temperature above + 80°С is not supposed. Electronic devices of the car Otherwise can be damaged. Besides, in the conditioner the pressure raises, able to lead to system destruction.

– The sheeting of the bottom of the car from ПХВ leaves a rotating steel brush or hot air in temperature to + 180°С with the help шпателя. Owing to heating of a covering from ПХВ to temperature from above 180 ° With there is a chemical reaction and the hydrochloric acid promoting to active corrosion, besides, is formed unhealthy steams are formed.

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