DME 7.8 DME 7.80 · 20 21 22 23 24 25 26 27 28 29 s

DME 7.8 DME 7.80 A B 20 21 22 23 24 25 26 27 28 29 s A - Oxygen sensing, bank 1 B - Oxygen sensing, bank 2 1 - Select system test. 2 - Select 'Request large lift'. If "Valve diagnosis not ready" appears, a fault may have been stored. 1. Erase the fault memory. 3 - Activate the system test with the key F8 immediately before acceleration with wide-open throttle. The message "Drive link active" then appears. 4 - Perform acceleration with wide-open throttle in 2nd gear, until "Valve lift diagnosis complete" appears. Note! ♦If a fault is detected, it is only recorded in the fault memory after 6,000 ignitions (at idling speed approx. 3 minutes waiting time). ♦It is important to observe the oxygen sensors during accelera- tion with wide-open throttle or to record their behaviour with the data logger. Continue by performing the system test for small lift 0-49 page 8 2470 P0306 p0306 Printed in Germany – 4, 2002