New Q5 TDI PP Joined my Family -- On Stop-Start Misbehaving?

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07-02-2015, 08:43 AM

#41

ex-quattro PETE

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Location: Michigan, USA

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Quote:

Originally Posted by NorthValley

Yes it is fast to reach 90c. Much faster than on my previous car. As for running under optimal, every car will run for the first few minutes under optimal temps and it doesn't matter if you turn the engine off after 5 minutes or 50...the car has still run for 5 below optimal!

My point is that when you let the car run longer so that it can reach and stay at full temp for some time, all the moisture and fuel dilution has a chance to boil off from the oil/engine. If you constantly just stop after 5 minutes, all that bad stuff just keeps on accumulating.

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07-02-2015, 08:50 AM

#42

NorthValley

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I see. Perhaps a warm up before setting off...you can get a remote starter I believe? Or a longer route? Not much else I can suggest although I would be surprised if you suffer any problems as you said you do longer runs at weekends etc.