DME 7.8 DME 7.80 · ence from the other oxygen sensor > approx. 15 %. In the case of a

DME 7.8 DME 7.80 ence from the other oxygen sensor > approx. 15 %. In the case of a fault, the flat-base tappets of the inlet valves for the entire cylinder bank must be replaced. A B A - Oxygen sensor, bank 1 B - Oxygen sensor, bank 2 1 - Select system test. 2 - Select ’Request small lift’. If "Valve lift 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. Note! If ’Request small lift’ appears, the valves remain at small lift, ie. the performance is reduced dramatically. 4 - Perform acceleration with wide-open throttle in 2nd gear, until "Valve lift diagnosis complete" (max. 4,000 rpm) appears. 0-156 page 8 1555 P1350 p1350 Printed in Germany, 2000