Had the same codes a few years ago...car ran rough when first started
and engine was cold (overnight). I eventually took it to a indie euro mechanic that deduced that it could be the AOS (had recently been replaced), Air leak, MAF, or that the engine was defective. The last response about the defective engine is what let me know they had no clue what they were doing and did not have the necessary equipment to do diagnostics on the car. I bought a new MAF a few weeks later and the codes never came back and the car ran smooth again. The car will run without the MAF hooked up so it does give some trouble shooting insight as to whether the MAF is good or bad.
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