redaotrosh

Hello guys, I have W220 S320 99 model Germany, After replacing engine I got check engine light and engine shaking when idle but not continous, so we check it at workshop we observed codes P0173-134 and P0170-23, After searching here somebodies told that MAF need replacement so I asked bosch Lebanon for one but the price is 160$ and the used one is 33$ where the Chinese one from aliexpress is 16$ so what do u prefer since all no warranty for them and can I use the Chinese one or used. Is there any part else thab MAF will cause same code.

note I got new error code yesterday P1605 "rough Road detected" what does that mean?