Automatic diagnostic system (BMW 5 Series E34)

This system provides information about emerging faults in the form of text on the display, as well as instructions and warnings for the driver, some of which are accompanied by an audible signal. The incoming information is divided into 3 priority groups.



In the event of these faults, an additional sound signal is heard and the symbol (1) flashes.

If there are several faults at the same time, messages are issued in turn.

These messages remain on the display until the fault is corrected and cannot be cleared by pressing the self-diagnosis system button (2).

1st group

In the event of these faults, an additional sound signal is heard and the symbol (1) flashes.



If there are several faults at the same time, messages are issued in turn.

These messages remain on the display until the fault is corrected and cannot be cleared by pressing the self-diagnosis system button (2).

2nd group

Messages are displayed when the ignition key is turned to position "2". If at this moment a message from the 1st priority group is displayed, it automatically disappears from the display (but warning symbols remain). If the "+" sign appears, there are more messages, they can be called up by pressing the "2" button.

Note: Using the "SS" self-diagnostic system button, messages can be erased before automatic erasure, and messages contained in the computer's memory can also be recalled (you can judge this by the presence of warning symbols).

3rd group

Caution: Until the sensor malfunction is corrected, you will not be able to obtain information about low engine oil pressure.

Sensor Oelstand: The engine oil level sensor is faulty. Contact a BMW service station.

Caution: Until the sensor malfunction is corrected, you will not be able to obtain information about the low oil level in the engine.

The message also appears before the trip with the ignition key in position "2", and after a while they disappear together with the warning symbols. A new message appears only when the ignition key is set to position "O".



When the sign appears, further messages can be called up by pressing the "CC" button.

General instructions: Message appearance "Betnebsanleitg." means that you should refer to this page of the instructions (to the column Cause of malfunction/Your actions). Message "Betnebsanleitg." can be removed from the display by pressing the "CC" button.

Checking the indication of the automatic diagnostic system

Set the ignition key to position "2" - there should be no error messages - and press the "CC" button: a frame of dots should appear.