Peter C Posted December 11, 2017 Share Posted December 11, 2017 Gents. My wife has a 2009 Citroen C4 Picasso 1.6 HDi manual. Actually a decent little car. Problem: When driving along there are no smells in the cabin. When the car is stationary with the A/C circulation button switched off (so air is drawn into the cabin) there is a noticeable strong exhaust / engine smell after a few seconds of stopping. With the circulation button on (no fresh air enters the cabin) the smell goes away but in cold and wet weather the windows steam up. What I found: Under the bonnet of our car I saw this: A photo taken from Google shows that we are missing a pipe: I understand that the bit of pipe that we are missing is for the air filter cold feed. Question: Surely the missing air filter intake pipe (if that's all that missing) would not cause smells inside the cabin? Any ideas how the smell could be getting in? I've looked at various C4 related forums but can't find a sensible answer. There must be shiter with knowledge of these engines? Help! Link to comment Share on other sites More sharing options...
Arthur Foxhake Posted December 11, 2017 Share Posted December 11, 2017 The landlord of my local had similar, the tubo was leaking on the hot side and belching exhaust fumes into the engine bay.Does your turbo have soot around it?His did. Link to comment Share on other sites More sharing options...
Peter C Posted December 11, 2017 Author Share Posted December 11, 2017 The landlord of my local had similar, the tubo was leaking on the hot side and belching exhaust fumes into the engine bay.Does your turbo have soot around it?His did.You wouldn’t eat your dinner off it but it’s not too bad. Link to comment Share on other sites More sharing options...
sierraman Posted December 11, 2017 Share Posted December 11, 2017 I’d check for a blowing manifold gasket, does it have a diesel smell to it? If so the injector seals are a possibility on this particular unit. Link to comment Share on other sites More sharing options...
Peter C Posted December 11, 2017 Author Share Posted December 11, 2017 I’d check for a blowing manifold gasket, does it have a diesel smell to it? If so the injector seals are a possibility on this particular unit.Manifold gasket looks ok, injector seals may need looking at. But why is the smell so strong in the cabin? Link to comment Share on other sites More sharing options...
Dave_Q Posted December 11, 2017 Share Posted December 11, 2017 If the Picasso is anything like my C8 the inlet for the cabin air is just above the engine. Peter C 1 Link to comment Share on other sites More sharing options...
chancer Posted December 11, 2017 Share Posted December 11, 2017 Good call on injector seals. Should be pretty obvious...the leaking seals will have black crystal like deposits around injector Peter C 1 Link to comment Share on other sites More sharing options...
sierraman Posted December 11, 2017 Share Posted December 11, 2017 You’ll probably hear the injector seals it’ll make a chuffing sound sometimes. Try nipping them up first but not too tight. Peter C 1 Link to comment Share on other sites More sharing options...
Peter C Posted December 11, 2017 Author Share Posted December 11, 2017 Ok, cheers guys, I’ll have a look at the injector seals. Link to comment Share on other sites More sharing options...
stephen01 Posted December 11, 2017 Share Posted December 11, 2017 We had new injector seals @ 55k and our exhaust smell went away, Peter C 1 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now