Volkswagen 2004 Jetta, Introduction Manual

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42
Engines
A clamping flange on the cylinder head
allows easy removal and installation of the
exhaust turbocharger/manifold module. The
terminal block does not require removal.
The exhaust manifold is split. A divider in
the manifold ensures a steady flow of
exhaust gases to the turbine. The ports of
cylinders 1 and 4 and cylinders 2 and 3 are
separated based on the firing order. The
divider also prevents the exhaust gas
pressure from expanding into the other
cylinders.
This maintains turbine speed and optimizes
turbocharger response.
Divider
Cylinder 1
Terminal Block
332_026
332_025