[dave w]

I have an '06 ML350. I have another vehicle I drive daily and find myself not using the ML for 3-4 weeks at a time. I know the best answer to this question is to just drive the car every week, but aside from that.... My list of things that may go wrong with infrequent use are:

1) internal engine corrosion issues
2) water vapor causing fuels contamination
3) flat spotting tires
4) potential failure of electrical and other compnents fron lack of use (window motors,etc.)

Now the question - is just starting the car and letting it idle for 15-20 minutes enough to keep the engine from the issues that arise from non-use? I can deal with flat spotted tires as that is only temporary, and I leave the fuel tank full or near-full.

Thanks in advance for any input on this.