Since the weather is getting warmer again, some of the older MKV’s may begin to experience failure/overheating of the low pressure fuel pump. I had this problem last summer. This issue often comes up in hot weather and long distance driving. The low pressure fuel pump begins to overheat and then cuts out, starving the high pressure fuel pump. Acceleration is completely cut and you have to pull over or slow down.
If you’re experiencing fuel cuts in the heat or during long distance driving, take a look here for some more information. You may need to replace your in-tank fuel pump with the latest version.