Replacing mufflers and pipes Renault Megane 2

We repair the exhaust system due to burnout of the system elements or if the system elements are clogged with soot and combustion products

Preparing the car for work.

We install the car on a lift or a viewing ditch.

Replacing exhaust system suspension pads

We unscrew the two bolts securing the bracket of the main muffler to the suspension cushion

Lowering the main muffler down

Installing a support under the muffler

Unscrew the bolt securing the pillow to the body

Remove the pillow

We also remove the additional muffler pipe cushion

Install pillows in reverse order

Replacing the catalytic converter

Measure the distance between the marks (it should be 80 mm)

Mark the middle between the marks and apply an additional mark with a felt-tip pen

Saw the pipe according to the marked mark

Remove the catalytic converter pipe-to-exhaust manifold bolts

Removing bolts with springs

Disconnecting the main muffler pipe and the catalytic converter

Install the parts in reverse order.

We connect the elements of the exhaust system with special compression couplings that are commercially available.

We replace the additional and main muffler in the same way.

To replace the main muffler, we cut the system between the marks located near the left spring of the rear suspension.

To replace the additional muffler, we cut the system in two places:

- between catalytic converter and additional silencer

- near the left rear suspension spring

Removing and installing exhaust manifold

Disconnect the negative battery terminal.

Remove the bolts securing the catalytic converter pipe to the exhaust manifold

Removing the bolts

Disconnecting the main muffler pipe and the catalytic converter

Remove the sealing sleeve

We press the clamp of the oxygen sensor harness block

Disconnecting pads

Unscrew the bolts of the upper thermal screen

Remove the thermal screen

Unscrew the exhaust manifold mounting nuts.

When installing, twist according to the order in the photo

Unscrew the exhaust manifold bracket nut

Remove the exhaust manifold

Remove the gasket from the studs

Removing and installing thermal screens

To remove the thermal screen of the main muffler

Unscrew the three screws securing the thermal screen

And remove the thermal screen of the main muffler

To remove the thermal shield of the additional muffler

Remove the additional muffler pipe suspension

Unscrew the rear bolt of the thermal screen

We unscrew the front bolt of the thermal screen

Using pliers, unscrew the latches

Remove the clamps for fastening the central thermal screen with the thermal screen of the pipe of the additional muffler

This is how the latches are located

We disengage the central thermal screen from the studs and remove the thermal screen of the pipe of the additional muffler

To remove the central thermal screen:

Remove the diagnostic oxygen sensor harness from the holder

Remove the holder

With the help of pasatizhey unscrew the latches

And remove the fixing clips of the central thermal screen

Remove the central thermal screen

Unscrew the bolts securing the upper thermal screen

Remove the thermal screen

We unscrew the bolts of the lower thermal screen

Remove the thermal screen

Install thermal screens in reverse order