Hydraulic system, general information

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Observe measures when disconnecting battery →

27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL
27 BATTERY, STARTER, GENERATOR, CRUISE CONTROL for ELECTRICAL EQUIPMENT, CABRIOLET

CAUTION: Secure convertible top mechanism against unintentional folding up and down during all installation work as this can lead to personal injury or vehicle damage.

The hydraulic system is self-bleeding and maintenance-free.

When replacing the hydraulic cylinder or hoses, it is not necessary to top off hydraulic oil. There is sufficient hydraulic oil in the system so that the oil level does not go over or under the minimum markings.

If work is done as a result of hydraulic oil loss, the oil level should be checked before operating and adjusted if necessary.

Vehicles through 04.2006

The hydraulic system is switched off when the ignition is switched off or 10 minutes after the convertible top switch is operated when the ignition is switched on.

If the hydraulic pressure is maintained, the convertible top switch should be operated briefly with the ignition switched on.

Vehicles from 05.2006

When the ignition is switched off, the hydraulic system is switched off after 10 minutes.

To depressurize the system before this (for manual convertible top operation), the convertible top switch must be operated for 3 seconds with "ignition off".

If the hydraulic pressure is maintained, the convertible top switch should be operated briefly with the ignition switched on.