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White smoke usually means coolant getting into engine and burning. The smoke will find the easiest place to come out. The reason it happens after heat is turned on is the coolant is active more
Don't worry about the smoke when your car starts it will mostly happen in cold mornings but as car heats up it should be gone its just cause the car has to heat up to a certain tempeture. Hope it helps.
what kind of smoke by that I mean what colour is it and when does is happen under hard acceleration, at idle, when first started, under light acceleration, idling a long time? blue smoke is burning oil, white smoke is burning coolant sometimes accompanied with a sweet smell, black smoke its running rich. those are the basics.
Identifing the smoke color tells you where it is coming from. Black smoke comes from fuel, so it is running rich or not fully igniting the mixture. White smoke comes from oil and often happens under very heavy engine load. On acceleration this could be the piston rings allowing blow-by, on deceleration this could be the valve seals leaking. Blueish smoke is often coolant, indicating a head gasket leak.
You didn't state iof this happens during a moving gear change, or if it has happened since you physically changed some of the gears in the car. On a TDi, I would follow the factory recommendations for all engine lubricants and additives.
From your brief description, I would have to recommend the stop smoking patch for your van. But seriously, you will have to describe where the smoke is coming from on the van, what color the smoke is and when it happens.
NO TRANSMISSION FLUID CAR WILL NOT SHIFT .IT WILL SLIP CAUSING CAR TO MOVE SLOW ON TAKE OFF.IF CAR SMOKING A LIGHT BLUE SMOKE WHEN TAKING OFF TRANSMISSION VACUUM MODULATOR DIAPHRAM RUPTURE ALLOWING TRANSMISSION BE PULLED IN THE INTAKE BURNING IN COMBUSTION CHAMBER WITH THE GASOLINE.
It sounds like you may need valve seals.
The oil sits in the head after the engine is cut off and leaks around the seals into the cylinder.
When you start the engine it burns the oil and sends the smoke out of the tailpipes.
It does not hurt anything much if it is not to bad.
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