Audi A3

since 1997 of release

Repair and car operation



Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
- Automatic transmission and models with a full drive
   Adjustment of a cable of the selector of switching of automatic transmission
   Removal and installation of automatic transmission
   Diagnostics of electric components and reading of codes of malfunctions
   Full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema







Automatic transmission and models with a full drive

GENERAL INFORMATION

Specifications
ATTENTION

Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print



General parameters
Type 4-step (or 5-step), all transfers forward are synchronized. The main transfer is located in a transmission case
Designation 01М
Applied liquids
Automatic transmission
Type ATF ESSO EGL 71 141 or AUDI-ET No. G052 162 A2 (light yellow)
Volume
At replacement 3.0 l
In total 5.3 l
Oil of the main transfer of automatic transmission 0.75 l, synthetic A2 oil G052 162 … SAE 75W90
Oil of the coupling of coupling of Haldex of models with a full drive 0.25 oil l for coupling of Haldex of the A1 G 052 175 specification
Efforts of a tightening of carving connections
The moments of an inhaling of fixture are given in the text of Head and on some иллюстрациях*.

*vydelenny in the text a bold print the moments of an inhaling are subject to exact observance; the efforts not allocated with a bold print are given only roughly
AT fastenings on the engine
bolts М10 60 H of m
bolts М12 80 H of m
The rotation converter to a driving disk 60 H of m
Starter to transmission 60 H of m
Bolt of the left support to transmission 25 H of m
Bolt of the left support to an arm 60 H of m
Bolt of a forward support to an arm 60 H of m
Bolt of a guard of transmission 15 H of m
Power shafts to AT flange 45 H of m
Stopper of a maslonalivny opening of automatic transmission 15 H of m
Drain stopper of oil of the coupling of coupling of Haldex of models with a full drive 15 H of m
Stopper of a jellied opening of the coupling of coupling of Haldex of models with a full drive 30 H of m

AT coal mine

Design of coupling of automatic transmission

1 roller obgonny coupling
2 brake coupling of a gear wheel of a reverse gear
3 submitting coupling of a gear wheel of the 4th transfer
4 submitting coupling of a gear wheel of 1/3 transfers
5 submitting coupling of a gear wheel of a reverse gear
6 brake coupling of a gear wheel of 2/4 transfers
7 blocking coupling of the converter of rotation

Leading gear wheel

1–a clamp with a gnezdovidny head
2–washer
3–adjusting washer
4–internal holder of the konusny roller bearing
5–external holder of the konusny roller bearing
6–transmission case
7–axial needle bearing
8–external holder of the konusny roller bearing
9–internal holder of the konusny roller bearing
10-leading gear wheel

Leading gear wheel

1–clamp with a gnezdovidny head.
2–transmissions
Tarelchaty washer.
3–screw
4–six-sided nut
5–a conducted gear wheel
6–internal holder of the konusny roller bearing
8–bolt
9–bearing cover
10-adjusting washer
11-gear wheel of parking blocking
12–persistent ring of the bearing
13-sealing ring
14-epiploon of a leading gear wheel
15-external holder of the konusny roller bearing
16-internal holder of the konusny roller bearing

Assembly of the main transfer of AT

1–transmission case
2–speedometer drive
3–a target shaft with a driving flange
4–sealing ring
5–adjusting ring
6–epiploon of a leading flange
7–konusny ring
8–persistent washer
9–kompressionny spring
10-leading flange
11-tarelchaty washer
12-lock ring
13-cover
14-a blocking element
15-screw
16-cover
17-lock ring
18-tarelchaty washer
19-driving flange
20-kompressionny spring
21-persistent washer
22-konusny ring
23-epiploon of a leading flange
24-bearing case
25-sealing ring
26-target shaft/leader flange
27-differential
28-screw
29-a blocking element
30-lock ring
31-lock ring
32-sealing laying
33-cover
34-screw

Parking gear wheel of AT

1–bolt
2–management of the valve of a manual choice
3–a selector shaft with a choice segment
4–spring finger
5–connecting lever
6–a fixing segment
7–lock washer
8–bolt
9–spring of a segment of a choice
10-bolt
11-sealing ring
12-washer
13-an axis of the fixing lever
14-returnable spring
15-the fixing lever
16-parking blocking gear wheel
17-bolt
18-persistent plate
19-a directing plate
20-sealing ring
21-multipurpose switch of modes of transmission
22-arm
23-bolt
24-transmission case
25-sealing ring
26-sensor of speed of the car
27-bolt
28-bolt
29-transmission sensor of speed of the car
30-sealing ring
31-sealing ring
32-branch pipe сапуна
33-сапун
34-cover сапуна

Planetary assembly of AT

1–holder
2–sealing ring
3–washer of the axial needle bearing
4–axial needle bearing
5–washer of the axial needle bearing
6–a bearing case with the established conducted gear wheel
7–a conducted gear wheel
8–adjusting washer of the holder
9–washer
10-bolt
11-remote plug
12-sealing laying
13-cover
14-bolt

Klapanny assembly of AT

1–cap
2–perelivny tube
3–pallet
4–bolt
5–magnet
6–remote plug
7–sealing laying
8–ATF screen
9–bolt
10-sealing laying
11-case of klapanny assembly
12-bolt
13-sealing ring
14-the current-carrying tire with the socket
15-clamp
16-contact socket of electroconducting
17-socket clamp
18-nut
19-sockets of electromagnetic valves
20-a pressurizing cap
21-sealing ring
22-sealing ring
23-executive rod of the valve of a manual choice

Instead of RKPP the AUDI A3 car can be equipped with 4-step automatic transmission (AT). In the course of a troganiye from a place of AT carries out function of ordinary coupling, and during movement performs work on gear shifting.

The AT main hubs are: torque converter, planetary reducer and hydraulic or electronic control system. Hydrodriving disk brakes and disk coupling are applied to transition to another transfer the relation in a planetary reducer.

The torque converter on the functions corresponds to hydraulic coupling. Its task includes coupling implementation at a troganiye from a place and gear shifting.

Management of pressing when switching carries out the electronic device instead of the hydraulics applied in usual RKPP. Thus, there is fuller information for better management of switching process that gives the chance to choose the optimum transfer relation depending on a mode of operation of the car and desire of the driver that, in turn, allows to increase quality of process of gear shifting.

The manual Economy or Sport programs are not present. The monitor distinguishes till speed from which the pedal is pressed, whether the driver wants to go "is sports" or is economic" and according to it operates the switching moment. Whether in management of process of switching resistance to movement is considered also the car uphill or from the mountain, for example, moves, whether there is a trailer and a head wind.

In the presence of malfunctions in chains of signals of sensors or electromagnetic valves switching on the emergency program of movement is made, at the same time malfunctions register in memory of malfunctions. After them it is possible to consider from memory of the device.

For job evaluation and for the correct search of malfunctions are necessary the corresponding experience with AT and qualification.
ATTENTION

Cars with AT are authorized to be towed on distance to 50 km at speed no more than 50 km/h. At towage on the conveyor the forward part of the car should be lifted.