Self Study Program 314 – Audi A4 Cabriolet convertible top control

VAG SSP 314. The perfectly shaped Audi Cabriolet continues to enjoy undiminished popularity. Innovative technology, sportiness, modern design as well as dynamics and exclusivity are the hallmarks of the Audi A4 Cabriolet. The sporty lines and the outstanding material quality and finish of the interior are typical attributes. The convertible top control also defines a new dimension in open-topped driving.

The new Audi A4 debuted as the first production saloon by Audi with a fully automatic, electro-hydraulic convertible top with heated glass rear window.

When open the hood is fully retracted and nothing interferes with the characteristic shoulder line which gives the vehicle body a smooth edge. But even with the hood closed, the dynamism and harmony of the silhouette are retained. The wide arch of the roof’s outline, without any visible ridges created by the linkage, accentuates the body’s flat proportions and the subtle wedge shape of the unit as a whole.

State-of-the-art convenience electronics makes the convertible top even easier and more convenient for the driver to operate.


  • Overview of information about the vehicle
    • Information materials
  • Operation
    • General notes
    • Variable convertible top compartment
    • Emergency actuation
  • The system and its components
    • Fitting locations of system components
    • Component parts of the convertible top control
    • Overview of the fully automatic convertible top control system
  • Bus topology
    • Vehicle data bus network
  • CAN-BUS network
    • CAN information exchange
    • The interface between the convertible top control and the CAN-BUS
  • Diagnosis
    • Introduction
    • Convertible top operation control unit J256
    • Read data block
    • Component selection
  • Function diagram
    • Convertible top control

The Self-Study Programme conveys basic principles with regard to the design and function of new models, new automotive components or new technologies.
The Self-Study Programme is not a Repair Manual!
All values given are intended as a guideline only, and refer to the software version valid at the time of publication of the SSP.
For maintenance and repair work, always refer to the current technical literature.

Language: English
Format: PDF
Pages: 32

Self Study Program 314 – Audi A4 Cabriolet convertible top control PDF free online