The electronics box cover is secured with five Allen-head bolts (arrows). One of the bolts should be able to be removed through a hole in the cover under the windshield.
The electronics box contains the ignition/injection system control unit (2). The relay switch (1) contains the lambda probe heating relay (2.6L engine) or height sensor (1.8L turbo engine).
To protect the sensitive ignition/injection control units from the high temperatures that prevail in the car in summer, they are placed in a closed box between the engine compartment and the windshield. To open the electronics box, you need to unscrew five hexagonal-head bolts. In addition to the engine control unit, the electronics box in a car with a 2.6-liter engine contains a control unit for heating the lambda probe.
Tip: The lid of the electronics box in the waterproof box must be closed, otherwise the driver will be blown onto his feet while driving.
(The original text is available on the website: AUDIMANUAL.ru)