164 is not low for Q, but not exceptionally high either. 156 is definitely not good for V, and will hurt your chances, but if I have an exceptional, exceptional, exceptional profile that makes you look like quant geek then I think 156 will not necessarily "doom" you. AW is a bit low as well, but as I said if your background is mainly quant, those inperfections, in the eyes of some profs/adcom members, are tolerable.
If you are not a quant geek, retake the exam.
