Skoda Workshop Service and Repair Manuals > Octavia Mk1 > Power unit | 1,6/74; 75 kW MPI engine | Exhaust system | Removing and installing parts of the exhaust system | Removing and installing the exhaust manifold - Engines with identification characters AVU, BFQ

Removing and installing the exhaust manifold - Engines with identification characters AVU, BFQ

Removing

–	Remove top part of intake manifold → Chapter.

–	Remove pre-exhaust pipe → Chapter.

For engines with identification characters AVU

–	Slacken the union nut -1- for the connecting pipe of the secondary air system.

Continued for all engines

–	Slacken the union nut -2- for the connecting pipe of the exhaust gas recirculation.

–	Unscrew bolts or nuts -3- for the shield and remove the shield.

For engines with identification characters AVU

–	Unbolt support -4- on the exhaust manifold and on the cylinder block.

Continued for all engines

–	Unbolt protective cover and disconnect the 6-pin plug of the lambda probe.

–	Slacken the bushing for the lambda probe cable and remove the lambda probe if necessary.

–	Unscrew nuts -1- of both brackets -3-, take off washers -2- (if fitted).

–	Unscrew the remaining nuts at the exhaust manifold -4-, take off washers (if fitted).

–	Remove the exhaust manifold -4- and its gasket -5-.

Install

Note

t	Replace gasket for exhaust manifold.

t	Replace self-locking nuts (if no collar nut is present, use a 4 mm thick washer).

Installation is carried out in the reverse order.

–	Install pre-exhaust pipe → Chapter.

–	Align exhaust system free of stress → Chapter.

Skoda Workshop Service and Repair Manuals