Warning: Individual characteristics are also given in the text of the Chapter and, if mandatory, are highlighted in bold
Common parameters | |
Type | 4-speed (or 5-speed), all forward gears are synchronized. The main gear is located in the gearbox housing |
Designation | 01M |
Applicable fluids | |
Automatic transmission | |
Type | ATF ESSO EGL 71 141 or AUDI-ET No. G052 162 A2 (light yellow) |
Volume | |
When replacing | 3.0 l |
Total | 5.3 l |
Oil main gear automatic transmission | 0.75 l, synthetic oil G052 162 A2…SAE 75W90 |
Clutch oil Haldex models with all-wheel drive | 0.25 l clutch oil Haldex specification G 052 175 A1 |
tightening forces threaded connections | |
Fastener tightening torques are given
in the text of the Chapter and in some illustrations*. *Highlighted in the text in bold type, tightening torques must be strictly observed; not in bold Efforts in font are indicative only | |
Mounts AT on the engine | |
M10 bolts | 60 Nm |
M12 bolts | 80 Nm |
Converter rotation to the drive disk | 60 Nm |
Starter to transmission | 60 Nm |
Left support bolt to transmission | 25 Nm |
Left support bolt to bracket | 60 Nm |
Front Support Bolt to bracket | 60 Nm |
Transmission Shield Bolt | 15 Nm |
Drive shafts to AT flange | 45 Hm |
Automatic oil filler plug transmission | 15 Nm |
Oil drain plug Haldex clutches for all-wheel drive models | 15 Nm |
Clutch filler plug Haldex models with all-wheel drive | 30 Nm |
Section AT
Automatic transmission clutch design
- 1 roller freewheel
- 2 reverse gear brake clutch
- 3 4th gear feed clutch
- 4 gear feed clutch 1/3 gear
- 5 reverse gear feed clutch
- 6 gear brake clutch 2/4 gear
- 7 rotation converter blocking clutch
Pinion gear
- 1 - retainer with socket head
- 2 - cup washer
- 3 - adjusting washer
- 4 - inner race of the tapered roller bearing
- 5 - outer race of the tapered roller bearing
- 6 - transmission housing
- 7 - axial needle bearing
- 8 - outer race of the tapered roller bearing
- 9 - inner race of the tapered roller bearing
- 10 - drive gear
Pinion gear
- 1 - a latch with a nest-shaped head.
- 2 - transmission housing. Disc washer.
- 3 - screw
- 4 - hex nut
- 5 - driven gear
- 6 - inner race of the tapered roller bearing
- 8 - bolt
- 9 - bearing cover
- 10 - adjusting washer
- 11 - parking lock gear
- 12thrust ring bearing
- 13 - sealing ring
- 14 - drive gear oil seal
- 15 - outer race of the tapered roller bearing
- 16 - inner race of the tapered roller bearing
AT final drive assembly
- 1 - transmission housing
- 2 - speedometer drive
- 3 - output shaft with drive flange
- 4 - sealing ring
- 5 - adjusting ring
- 6 - gland of the leading flange
- 7 - conical ring
- 8 - thrust washer
- 9 - compression spring
- 10 - leading flange
- 11 - cup washer
- 12 - retaining ring
- 13 - cover
- 14 - blocking element
- 15 - screw
- 16 - cover
- 17 - retaining ring
- 18 - cup washer
- 19 - drive flange
- 20 - compression spring
- 21 - thrust washer
- 22 - conical ring
- 23 - gland of the leading flange
- 24 - bearing housing
- 25 - sealing ring
- 26 - output shaft / drive flange
- 27 - differential
- 28 - screw
- 29 - blocking element
- 30 - retaining ring
- 31 - retaining ring
- 32 - gasket
- 33 - cover
- 34 - screw
AT parking gear
- 1 - bolt
- 2 - manual selection valve control
- 3 - selector shaft with selection segment
- 4 - spring finger
- 5 - connecting lever
- 6 - fixing segment
- 7 - lock washer
- 8 - bolt
- 9 - selection segment spring
- 10 - bolt
- 11 - sealing ring
- 12 - washer
- 13 - axis of the locking lever
- 14 - return spring
- 15 - locking lever
- 16 - parking lock gear
- 17 - bolt
- 18 - thrust plate
- 19 - guide plate
- 20 - sealing ring
- 21 - multifunction transmission mode switch
- 22 - bracket
- 23 - bolt
- 24 - transmission housing
- 25 - sealing ring
- 26 - vehicle speed sensor
- 27 - bolt
- 28 - bolt
- 29 - transmission vehicle speed sensor
- 30 - O-ring
- 31 - sealing ring
- 32 - breather pipe
- 33 - breather
- 34 - breather cover
AT planetary assembly
- 1 - holder
- 2 - sealing ring
- 3 - washer axial needle bearing
- 4 - axial needle bearing
- 5 - washer axial needle bearing
- 6 - bearing housing with installed driven gear
- 7 - driven gear
- 8 - adjusting washer of the holder
- 9 - washer
- 10 - bolt
- 11 - remote bushing
- 12 - sealing gasket
- 13 - cover
- 14 - bolt
Valve assembly AT
- 1 - plug
- 2 - overflow pipe
- 3 - pallet
- 4 - bolt
- 5 - magnet
- 6 - remote bushing
- 7 - sealing gasket
- 8 - ATF screen
- 9 - bolt
- 10 - sealing gasket
- 11 - valve assembly body
- 12 - bolt
- 13 - sealing ring
- 14 - conductive bus with a connector
- 15 - retainer
- 16 - pin wiring connector
- 17 - connector lock
- 18 - nut
- 19 - solenoid valve connectors
- 20 - sealing plug
- 21 - O-ring
- 22 - sealing ring
- 23 - manual selection valve actuator
Instead of a manual transmission, the AUDI A3 can be equipped with a 4-speed automatic transmission (AT). In the process of starting off, the AT performs the function of an ordinary clutch, and while driving, it performs the work of shifting gears.
The main units of the AT are: a torque converter, a planetary gearbox and a hydraulic or electronic control system. To switch to another gear ratio in the planetary gearbox, hydraulic disc brakes and a disc clutch are used.
The torque converter has the same function as a hydraulic clutch. Its task is to carry out the clutch when starting off and shifting gears.
The shift pressure is controlled by an electronic device instead of the hydraulics used in a conventional manual transmission. Thus, there is more complete information for better control of the shift process, which makes it possible to select the optimal gear ratio depending on the mode of operation of the vehicle and the desire of the driver, which, in turn, improves the quality of the gear shift process.
Manual programs "Economy" or "Sport" No. The control unit recognizes from the speed with which the pedal is pressed whether the driver wants to go "sports" or "economically" and accordingly controls the switching moment. The shift control also takes into account driving resistance, such as whether the vehicle is moving uphill or downhill, whether there is a trailer and a headwind.
If there are malfunctions in the signal circuits of the sensors or electromagnetic valves, the emergency driving program is switched over, and at the same time the malfunctions are recorded in the malfunction memory. Later they can be read from the device memory.
Appropriate AT experience and qualifications are required for performance evaluation and proper troubleshooting.
Warning: Cars with AT are allowed to be towed for a distance of up to 50 km at a speed of not more than 50 km/h. When towing on a conveyor, the front of the vehicle must be raised.
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