Cabin air exit vents/Ehaust smell in cabin!

[UncleBen]

Hi all, just asking if anyone knows where the cabin air exit vents are?
The care has recently developed an issue, at speeds bellow around 45mph with windows closed I have a very strong diesel exhaust smell, so strong that I have to open both windows. This only happens if I have the ventilation system on re circulate, blower on or off, as soon as I take it off of re circulate the smell starts to go.
I have checked all the door and boot seals, bulk head grommets ect and as far as I can tell these are in very good condition and in place. No work has recently been done and no accidents or bangs/scrapes underneath.
Since buying the car I have covered just under 6k mls and its only recently that this has begun.
The only thing that comes to mind are the cabin air exit vents and if perhaps the rubber flap is slightly folded over or stuck. I have also checked the exhaust system for leaks and again this is all sound, which again leads me to think that exhaust may be getting drawn in through one of these vents if at the rear of the vehicle. My car has the quads fitted so I have exiting fumes on both side of the car.
Anyone who has a detailed understanding of the ventilation system might be able to work out what's going on.
Has anyone come across this before or heard similar? It really is not nice or healthy and when stuck in traffic the re circ is a must.
Thanks in advance guys.

 

[666]

Check injectors, if they are not sealing, you can smell fumes in cabin

 

[UncleBen]

Hi 666, that sounds interesting, ill do that. Are you speaking from experience, having had this issue yourself?

 

[MasterDomino]

I had the exact same issues, it was the issue with injectors seals(copper/aluminium washers) i replaced them on all injectors myself with insulators included, fixed the issue, check my thread in general technical for more description
viewtopic.php?f=26&t=13103
EDIT: Lets use the other thread for this as the other one has more answers

 

[tianorth]

Have you checked the filler pipe for the tank?

 

[MagnaSteyr]

As all my learned fellow RCZ enthusiasts have indicated above there could be many reasons causing the issue you have raised ... it's certainly not a issue I would leave unresolved for too long ... exhaust fumes in the cabin (be they petrol or diesel) are extremely dangerous and your safety must come first. Seek out the assistance of a Peugeot specialist asap.

As to your question about the location of the air exit vents which I note hasn't yet been responded to ... they are positioned either side on the back of the sub frame inside the rear bumper directly under the line of the rear light binnacles ... see my photo ... they are in turn supported by the positive air vents on the rear parcel shelf (probably the most beautifully designed positive air vents of any car ever made - does anyone agree??) and the are intake within the plenum chamber in front of the bottom of the windscreen. Together they form the air flow system which keeps air within the car connected to external air.

Given you have mentioned you have quad exhausts one has to think this may be a good starting point in resolving your dilemma??

Best of luck ....