DTCs from your 500SEL. . . .
Those two codes are:
6 - Idle speed control faulty
17 - Data exchange fault between individual control module
I'd reset them and see what happens: use the procedure outlined in MENU #2 on my page.
The codes in MENU #5 (DM) should be the same for your car.
__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe
Visit my Mercedes Web Page
|