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300tdi smoking


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Petrol cars can burn their brake fluid if there is a hole in the servo diaphragm. The engine vacuum pulls the fluid into the inlet. Can't happen with a diesel that has a vacuum pump.

Smell the smoke, if it smells like diesel, it is diesel, so there is something wrong with the injector pump or low compressions.

If it smells nauseating (don't know how else to explain it) it will most likely be oil.

If no real smell and the smoke dissipates quickly, then it is steam and you could have a blown head gasket.

I have noticed that Tdi engines which are completely stuffed use little oil, possibly because the intake is not throttled so there is no vacuum on the overrun as with a petrol engine. (The 2.25 Dutch diesel lightweights had a throttled intake to generate vacuum for the brakes instead of a vacuum pump and used to use lots and lots of oil so they say).

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