Remote starters are a nice feature in the winter when getting the car warmed up and windshield defrosted before going out to wipe snow off the vehicle can make a big difference in time & comfort.
With remote starters combined with keyless ignition systems, I understand that upon opening the door to the remotely-started running vehicle, the engine turns off (for theft prevention I imagine). The operator then needs to restart the ignition upon entering the car with the keyless ignition fob.
I'm wondering: do remote starters increase engine wear substantially on keyless ignition vehicles? Why I worry they might:
A: Turning off and starting the car with air, defrosters, seat heating if available, may or may not be bad for the car. I've been told by mechanics it's best to turn these features off when leaving the car, because starting the vehicle with the air and all immediately blasting is bad (maybe for power consumption?) This is one area I'm uncertain.
B: I imagine turning an engine off and back on immediately is probably not great for power consumption and engine wear. If it isn't done often, no big deal. The remote-start keyless-ignition system describes above makes it a routine process, particularly in extreme weather when remote-start would be used most often and when the vehicle systems are under the most ambient stress. How bad does the added wear & tear become then?
'Substantially' is sort of subjective, but it's important here as I'm sure there's some wear & tear but how much does it matter. So to clarify, by 'substantial' I mean reducing longevity of important systems in the vehicle by years or tens of thousands of miles, or increasing necessary routine maintenance.