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White Smoke = Steam
Blue Smoke = Oil
Black Smoke = Rich Mixture
Are you losing coolant?
Are you losing oil?
And my learned colleagues excellent advice should be down here.
Have you opened the bonnet up and looked at engine ?
Suggest checking oil cap is screwed on properly ?
Look at exhaust manifold is there oil spilling onto it ?
check oil dip stick is fully inserted into engine ?
Also check power steering pipes for leaks ?
Let us know how you get on !!
have you checked the oil levels blue smoke is oil typically piston rings/ vavle seals depending on severity and condition of vehicle u should weight all options. give us more info. how much of a lose of power and how much smoke when did this start is there any check engine lights is there over heating ect ect
General rules of thumb:
Low speed engine on acceleration with smoke in the exhaust plume = worn piston rings
High speed engine accelerating (spooled up turbo) with smoke = oil form turbo bearing and/or piston rings
Engine on over run (coasting down, foot off the gas) with smoke = oil from valve guides.
VW/Audi make good engines with tight tolerances so none of the above should apply at 62K miles; just make sure that the oil (the right oil) and oil filter are changed regularly.
Blue smoke
is caused by engine oil entering the cylinder area and being burned
along with the fuel air mixture. As with the white smoke, just a small
drop of oil leaking into the cylinder can produce blue smoke out the
tailpipe. Blue smoke is more likely in older or higher mileage vehicles
than newer cars with fewer miles.
How did the engine oil get inside the
cylinder in the first place? The car has many seals, gaskets, and
O-rings that are designed to keep the engine oil from entering the
cylinder, and one of them has failed. If too much oil leaks into the
cylinder and fouls the spark plug, it will cause a misfire (engine miss)
in that cylinder, and the spark plug will have to be replaced or cleaned
of the oil. Using thicker weight engine oil or an oil additive designed
to reduce oil leaks might help reduce the amount of oil leaking into the
cylinder.
oil drop from the valve stem (from engine head to cyclinders)
or
diesel soot collect inside the exhaust system.
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I will take a 5-10 minutes high rpm (not redline) ran on the highway.
Pay close attention to the rear view mirror and look for black diesel soot.
===
I will use Diesel Cleen or similar product to condition the fuel. (keep moisture down)
Use the recommended amount of SEAFOAM oil additive to condition the valve stem seal/rubber parts.
I can not rule out excessive blown by.
Can you get a diesel compression tester?
When was the last valve adjustment?
Please post the actual odometer on the engine and I will follow up on it.
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