DME 7.8 DME 7.80 · Affected terminals

DME 7.8 DME 7.80 Affected terminals - Diagnosis/troubleshooting Note! ♦ ♦The EVAP canister purge valve is very sensitive to contamination. If the lines to the EVAP canister have to be detached, the outside of the canister must be cleaned beforehand. Work instruction Display OK If not OK 1 Check purge air line for ♦Remove front right-hand wheel Line was clear Clean line blockage housing liner. ⇒ Step 2 → End ♦Detach purge air line (connec- tion faces up) from EVAP canis- ter. ♦Blow through purge air line with compressed air. 2 Check EVAP canister ♦Detach the ventilation line to the Valve completely EVAP canister purge purge valve for leaks EVAP canister purge valve from closed valve stays open the EVAP canister (protective ⇒ Step 3 Replace valve cap) → End ♦With special tool 9160/1, gener- ate a vacuum of 200 mbar (0.2 bar) Figure: Connecting special tool 9160/1 0-P0446 page 2 2093 P0446 p0446 Printed in Germany – 13, 2003