General Information

A new radio generation is installed as a running change in m.y. 1998 vehicles from late October 97 production, beginning with VIN: WM 142005. Radio descriptions "Deluxe" and "Premium" are no longer used. The new radio generation is referred to as "Sound System'.'

These units are controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. It malfunctions occur in monitored components, Diagnostic Trouble Codes (DTC) will be stored in memory together with an indication of malfunction type. A maximum of 4 DTCs can be stored simultaneously.

Sporadic malfunctions (indicated in the readout by "SP") are automatically cancelled if not repeated in the next 50 engine starts.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with VAG 1551 or VAG 1552 Scan Tool (ST).

Notes on exchanging radio
- Do not disassemble radio.
- When the replacement of a malfunctioning radio is necessary, follow exchange part procedures.
- Complete the report form and return together with radio.
- Use the original packaging from the new radio when returning.