Car shakes on startup- Deterioration of exhaust emissions. Manual says its Emission Control Valves – what are these?. BMW X5 4.4i Sport
The owners manual refers to "Deterioration of Exhaust emissions control valves" –
2003 530i, engine light is on (not EML) and the manual says: "Deterioration of exhaust emission control values. Have the problem examined by .
I looked in the BMW manual and it translates it to: "Engine Exhaust emission values have deteriorated". Also when the revs are low, the car .
Air Pumps · Air Injection Pipes/Valves · Air Injection Pumps/Vacuum · Idle Control Valves · Engine Control Units · Shark Injector Software · Crankcase Ventilation.