Exhaust System

Drawing shows the 1.4 Petrol (1360cc) parts - other models are different.

The original exhaust systems (including the oxygen sensors) appear to be trouble-free on these cars.  After 7 or 8 years, the rear exhaust box may need replacing and this is a straightforward job for the local exhaust specialist.

More recently, I have needed to replace the 16 year old centre exhaust on one car - check if you need a fitting kit 1797.74 first, as it includes a special "slippery" gasket. If the old one is refitted, you may get odd squeaking noises as the exhaust tries to flex.

Drawing shows the 1.6 Petrol (1587cc) parts - other models are different.

Drawing shows the 1.6 Petrol (1587cc) manifold and catalytic converter - other models are different.

Drawing shows the 1.6 Petrol (1587cc) heatshields - other models are different.

Rear exhaust hanger

These can rust out after a long time - but can be replaced -   see ebay advert  or search for "Peugeot 1007 rear silencer exhaust strap".  It would be a good idea to spray with a can of heat-resistant spray paint as the sides may not be treated so it could start corroding again - - - -

Alternatively, this is an aftermarket rear exhaust - the hanger is welded directly on to silencer.

No noticeable increase in sound levels - works well and cheaper! Fitted June 2014 and still OK seven years on

Lambda O2 Sensors

There are two on each petrol engine - see drawing



Catalytic Converters

The average age of catalytic convertor is 10 years, what would be the most accurate way to isolate a faulty or partially blocked one in a 1007?

I've not heard of any needing changing on the petrol models so far - they do seem to go on and on.  Unless the engine light is on, leave well alone.

If the engine light is on - then

Only once these are all checked and cleared, then look to the O2 sensors and/or catalytic converter

My view only - others may have better solutions.