AUDI A2 - Engine and Gearbox Self-study programme 247

The 02T gearbox is an extremely lightweight two-shaft gearbox. The parts of the housing are made of magnesium. It is designed to transmit torque values of up to 200 Nm. Both gearboxes are actuated via gear selector cables and gate selector cables

Design and function of the 1.4 l - 16 V engine The cylinder block is made of die-cast aluminium. The required stiffness is achieved by pronounced ribbing, and is further reinforced by the crankshaft bearing blocks.

The cylinder liners are made of cast iron. They are cast into the crankcase and can be reworked. The webs with the cast cylinder liners have a thickness of 5.5 mm.

G12 is the only approved coolant additive. As well as preventing frost damage on the aluminium housing, it prevents the formation of lime deposits and damage due to corrosion in the coolant channels.

The crankshaft must not be loosened or removed. If the bearing cap bolts are released then the internal structure of the bearing blocks in the cylinder blocks slackens and causes them to warp. The bearing clearance is then reduced.

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PDC Programming - from Audi A2

On reversing, the parking aid system uses the echo-sounding principle to measure the distance between the back end of the vehicle and an obstacle. For this purpose, the rear bumper is fitted with four ultrasonic sensors. The sensors are actuated both in combined transmit/receive mode and in pure receive mode. On the Audi A2, the parking aid control unit features CAN capability, i.e. both the self-diagnosis and the actual system only function when the CAN is active.

Function:
The parking aid consists of the following:
Parking aid control unit -J446
Rear left parking aid sender -G203
Centre rear left parking aid sender -G204
Centre rear right parking aid sender -G205
Rear right parking aid sender -G206
Rear parking aid warning buzzer -H15
A self-test lasting less than one second is performed after switching on the ignition.

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Audi A2 Quick reference guide

This quick reference guide cannot replace the information contained in the Owner's Manual; it is therefore important that you also read the notes and warnings in the Owner's Manual. We wish you safe and enjoyable motoring with your new Audi. AUDI AG The central locking system locks and unlocks all the doors, the boot lid and the tank flap. It can be operated with the remote control or by turning the key in the lock. Operating the radio-activated remote control Press the appropriate button for about 1 second.

1 Unlocking button Open one of the doors or the boot lid within about 60 seconds, otherwise the vehicle will lock itself again automatically.
2 Unlocking button for tailgate Press the button for at least 1 second.
3 Locking button The turn signals flash once to confirm that the tailgate is properly closed.
4 Folding out the master key Press the release button. Folding away the master key Press the button and fold the key away.
Note: Press and hold unlocking button of remote control to open all electric windows. Press and hold locking button of remote control to close all electric windows.

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