Question about 2005 BMW 330Ci Convertible
Replaced secondary air pump and checked the hoses , no joy still get fault code 0411
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Posted on Jan 02, 2017
This is a mileage comtrolled light and the oxagen sensers and other sensers are to be checked and or replaced with new ones. The old sensers are likly to be OK but for best performance they should be changed anyway as failure causes all kinds a mixture problems that if left unrepaired can kill the car nd or cuse very expensive emission control repairs that can be avoided.
Posted on Apr 21, 2010
thermostat housing has a big slotted nut. undo it, start car add coolant, when coolant comes out of the bleed hose, done....tighten back up.
Posted on May 16, 2010
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Nov 13, 2015 | Cars & Trucks
DTC P0411 is most often caused by a bad Secondary Air Injection pump or a bad Secondary Air Injection solenoid valve . Disconnect the air pump hose at the solenoid valve, start the engine and see if there is air being pumped out. If not, the pump is bad.
If there is air being pumped out, unplug the vacuum line at the solenoid valve and remove the valve. Blow through the valve. You should not be able to. Now apply vacuum to the valve and blow through it. Now you should be able to. If not the valve is bad.
Make sure the vacuum line is fully seated, against the stop, on the solenoid valve. In some cases, the vacuum hose leading to the solenoid valve for the Secondary Air system may not be fully seated on the Combi-valve tube.
I tried to give you an image but am unable. I hope this helps anyhow. Good luck.
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