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Assembly overview - turbocharger: Engine codes AUY, BVK > < Removing and installing vacuum unit for charge pressure regulating valve

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Assembly overview - turbocharger: Engine codes ASZ, BTB
Assembly overview - turbocharger: Engine codes ASZ, BTB
  Caution
When a mechanical fault is found on the turbocharger, e.g. a destroyed compressor impeller, it is not only sufficient to renew the turbocharger. To prevent this from causing further damage, perform the following repairs:
t  Check air filter housing, air filter element and intake hoses for soiling.
t  Check complete charged air routing and charge air cooler for foreign objects.
If foreign objects are found in the charge air system, the charged air routing must be cleaned and the charge air cooler must be renewed, if necessary.
   
1 - Exhaust manifold
q   With exhaust turbocharger
q   Only renew complete
2 - From charge air cooler
3 - Intake manifold
4 - Gasket
q   Renew.
q   Coating (beading) towards intake manifold
5 - 25 Nm
q   Renew.
6 - Gasket
q   Renew.
q   Note installation position.
7 - Heat shield
8 - Washer
9 - Connection
q   From air filter
q   Check for secure seating.
10 - Connecting hose
q   From charge air cooler
11 - Turbocharger
q   Can only be renewed with exhaust manifold.
q   Remove front exhaust pipe to remove turbocharger → Chapter.
12 - Seal
q   Renew.
13 - Union, 40 Nm
14 - 17 Nm
15 - Oil return line with union nut
q   Tighten to cylinder block to 25 Nm
16 - Oil return pipe gasket
q   Renew.
17 - Vacuum unit
q   For charge pressure control
q   Integral part of turbocharger and cannot be replaced.
18 - Gasket
q   Renew.
19 - Front exhaust pipe
20 - Union, 30 Nm
q   Renew.
q   Coat threads and bolt head contact surface with -G 052 112 A3-.
q   Fill connection with engine oil before attaching oil supply line.
21 - Bolt
q   Specified torque: 10 Nm.
22 - Oil supply line
q   From oil filter bracket → Item
q   Fill connection with engine oil before attaching oil supply line.
q   Removing and installing → Chapter.

   

Assembly overview - turbocharger: Engine codes AUY, BVK > < Removing and installing vacuum unit for charge pressure regulating valve