Leaving a petcock vacuum line off can create a lean condition on 1 cylinder but normal on the rest. You can get odd idle symptoms and a lazy idle condition where the engine RPM's drop slowly and it 'hangs'. You can test for air leaks by running the motorcycle and squirting carb cleaner at suspected cracks. Jul 25, 2013 · I bought the Mercedes E430 Sport used with 170,000 miles on it. Everything works perfect except at night I have no dash lights. No radio light or climate Control lights on either. I checked fuses by battery and the fuse box up front on drivers side by fire wall. No blown fuses. Please help.
While driving at any speed and you tap the brakes will cause the lights to dim. GM's response is that this issue is not an issue at all but is what they call normal.