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The secondary air system works during a cold start to help the cat converter reach operating temperature faster thus burning cleaner. You probably won't feel a ifference in how the car drives however you should address these codes. It may be a faulty air pump, solenoid or valve but I have seen a few of these vehicles with clogged air passeges in the cylinder head. BMW made a tool to check this becuase that would be an expensive guess. The repair involves disassembling the cylinder heads so this is something I would not recommend you try yourself unless you have experience with engine work. You are better off going and having the pressure checked to see if the ports are in fact clogged.
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Hello again
That makes sense since the secondary air will only come on for a short period of time during a cold start. Believe it or not I have seen the ports clogg with less than 50,000 miles on the engine. The codes are for low flow so if the pump is not coming on or lost the capability to flow enough air or the vacuum solenoids are stuck that would cause a low flow of air in the system. This would be difficult to diagnose without the BMW scan tool. You should be able to do your drive without a problem but if the problem is not taken care of you may do some damage to the cat conveters.
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