Strange behaviour after cold start

This problem has only happen after a cold start and within the first few minutes. When I first observed it a couple of months ago, I didn't pay attention to all the details as it caught me off guard. It was a cold start and at low speed and after a shift (don't remember into which gear) the engine felt like it was at near stall briefly and there was almost no power. I was never able to repeat it again.

Fast forward to recent weeks and my wife described similar problems. She had another detail though - it was after a shift into 3rd. She described it as feeling like she mis-shifted into 5th.

Will be booking a warranty service but curious what this might be.

Good morning Weebl. This is early to tell, but might be fuel, it might be related with the VW Passat warm up strategy (VW warms up the exhaust/emission system in cold starts, and it might be too aggressive in the older models. The warm up cycle starts when you engage 3rd gear. It look like VW might have changed it in the 2014 models to make it less aggressive). I have felt also some jerkiness during warmup, now and then. Keep us posted. Question: how long is the feeling? Momentary, or long (10+ seconds)

PD Just a recommendation: it is a new car, but in cold starts, warm it up before go.

Happened to me this morning with the DSG... engine basically stopped injecting fuel for about a half second, resulting in a noticeable buck. It has happened before on rare occasions, mostly when there has been a big temperature change between the night before and the next morning. I believe it also coincides with the emissions warm-up routine, but I can't verify that for sure.

Either way, it's no big deal to me... just a little hiccup caused by some transient condition on super rare occasion.

I've had cold mornings since buying my car a month ago and it does that every time during warm up. I talked to my Dealer at my 30 day check and they didn't seem concerned.

Yes this coincides with the exhaust flap closing when you go into 3rd gear or shortly thereafter. It feels like a bump or a cut out for a brief moment.

It is a momentary loss of power, maybe a couple of seconds at most. I think the fuel is low probability of being the culprit. I last filled the car with diesel from the same batch and same station as my fill up of the diesel rental I had, just before doing a long trip with it. The fuel caused no issues in that vehicle.

I think I suspect the warm up routine as well. Hoping some sort of a fix exists.

Been discussed for several years. http://forums.tdiclub.com/showthread.php?t=343173

Sorry to read that this start-up hesitation still exists in the 2014s. My conclusion now is that the start-up emissions strategy has NOT been modified, for all sorts of reasons, primarily EPA certification, IMHO.

Yes, the same thing occurs with mine following a cold start, but it resolves itself within three miles of driving. Knowing the cause, it's easy to accept and live with.

Thanks to those folks in these forums who provide such useful feedback and knowledge, that's why tdiclub is such an invaluable resource for VW owners and prospects!

Seppoboy said:

Yes, the same thing occurs with mine following a cold start, but it resolves itself within three miles of driving. Knowing the cause, it's easy to accept and live with.

Click to expand...

Easy to live with, even though it may be a contributing factor to turbo failure?