As you know, the engine after a long trip at high speed should not be immediately turned off, but let it idle a little. The reason for this is as follows: if you immediately drown out "overheated" engine, the turbocharger chamber bearing will heat up so that the bearing lubricating oil may burn out. If handled this way and restarted, the turbocharger will soon fail.
The turbocharger is quite sensitive to dirt or foreign objects, therefore, cleanliness must be observed during removal and installation.
Disconnect wire "masses" from AB (don't forget about radio coding).
Remove air filter.
Disconnect the air hose from the turbocharger.
Clamp the coolant hose to the turbocharger with a clamp or drain the coolant.
Raise and place the front of the vehicle on stands.
Detach the exhaust system mount from the gearbox.
Disconnect catalytic converter from turbocharger (4 nuts).
Disconnect the oil inlet and outlet pipes from the turbocharger. Make sure less oil comes out.
From the underside, unscrew the bolts securing the turbocharger from the exhaust manifold. These bolts are not easy to get to, so you need to use a suitable wrench (ring wrench 12 mm). While doing this, hold the turbocharger, and when all the bolts have been removed, pull it up.
Installation is carried out in the reverse order of removal. Always use new nuts and bolts. Before connecting the oil supply pipe, pour some oil into the turbocharger (pre-lubrication). At first, do not let the engine run at high speeds.
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