Replacement of elements of the Mazda 6 exhaust system

We replace the elements of the engine exhaust system in case of damage or burnout

Replacing system suspension pads

We replace rubber cushions if, due to their damage or excessive deformation, the elements of the system begin to knock, in contact with the body or other units of the car

To replace the pillows of the main muffler, pry off the pillow to be replaced with a screwdriver and slide it from the muffler bracket, then from the bracket on the body, and then remove the pillow

A damaged pillow can be cut open with a knife for easier removal

Install the pillow in reverse order

To facilitate the installation of a new pillow, lubricate it with soapy water

We also replace the rest of the main silencer cushions

This is how the pillows of the main silencers and two pillows of the exhaust pipe at the resonator are located

Exhaust manifold replacement

Remove the decorative cover and crankcase protection

Remove the thermal screen of the exhaust manifold

We unscrew the two nuts securing the flanges of the exhaust manifold and the exhaust pipe.

Then we remove the front pipe

We unscrew the seven nuts securing the exhaust manifold to the cylinder head

Remove the exhaust manifold and the gasket installed on the cylinder head studs

Install the exhaust manifold and its gasket in reverse order

We tighten the fastening nuts in the order shown in the figure, with a torque of 43-64 Nm

Removing and installing the downpipe

We prepare the car and disconnect the negative battery terminal

Remove the crankcase protection

Remove the oxygen concentration sensors from the exhaust pipe and catalytic converter

Sensors can be removed from the removed exhaust pipe and converter by first disconnecting the wiring harness pads

We remove the pillows from the brackets of the exhaust pipe at the resonator by moving them with a screwdriver

We unscrew the two nuts securing the flanges of the intake pipe and the connecting pipe and remove the nuts with springs

We unscrew the two nuts securing the flanges of the exhaust manifold and the exhaust pipe and remove the exhaust pipe

Install downpipe in reverse order

Removing and installing the connecting pipe

We unscrew the two nuts securing the flanges of the receiving and connecting pipes, after which we separate the flanges

We unscrew the four nuts securing the flanges of the main silencers to the flanges of the connecting pipe and, having separated the flanges of the main silencers and the connecting pipe

Remove the connecting pipe

Install the connecting pipe in the reverse order, replacing the gaskets between the flanges

Replacing the main muffler

We unscrew the two nuts securing the flange of the main muffler to the flange of the connecting pipe and disconnect the flanges of the main silencer and the connecting pipe

Disconnect the main muffler from its two mounting pads and remove the main muffler from the car

If necessary, you can remove the main mufflers as an assembly with the connecting pipe by unscrewing the nuts securing the flange connection of the connecting and exhaust pipes, and disconnecting the main silencers from the four mounting pads

Removing and installing thermal screens

Remove the decorative engine cover

We unscrew the three bolts securing the thermal screen and remove the thermal screen of the exhaust manifold

Install the exhaust manifold heat shield in reverse order

To remove the thermal screen of the resonator:

Remove the connecting pipe as described above

We unscrew the four bolts securing the extension to the body and remove it

We unscrew the two bolts and two nuts securing the thermal screen to the body, then remove the thermal screen

Install the thermal screen in reverse order