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028 and 029---additive mixture adaption reached for bank one and two.
030 is heater control circuit, bank one sensor one.
028 and 9 could be because of intake leak or several other potential problems such as Bad MAF, sticking throttle body etc. 030 is harder to determine core issue.
Before addressing 030 I suggest repairing the intake leak, clear the codes and see what returns. The intake leak could be causing all the codes. How is the engine running?
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 X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
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