smelly car

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Phil Brook
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smelly car

Post by Phil Brook »

When I open the roof window when going slowly or decelerating an engine/exhaust smell is evident. I have had the exhaust checked and told this is ok-any ideas how I could cure this? - without just shutting the window!!
Philbrook
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Oscar
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Post by Oscar »

Was the exhaust manifold checked?
(Red BX 1.7TZD ("Well, it is a style icon" - Tom Sheppard)) "Was", Tom, "was"
scarecrow

Post by scarecrow »

Have you checked that the rubbers are all in place around the rear hatch? A pressure differential might be created by opening a window drawing in air and fumes from around the back - it's happened to me before and relocating the bottom rubber cured it.
Gibbo2286
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Post by Gibbo2286 »

Add three or four inches to the end of the tailpipe. Gibbo.

That's not penis spam/ :)
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rayfenwick
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Post by rayfenwick »

...or spam penis. Which sounds like an ailment... :S
Ray

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1997 Citroën XM 2.0 TCT Exclusive Auto (for sale)
1979 Citroën CX 2.4 EI Cmatic Prestige (slowly being restored)

1992 Alfa Romeo 164 Lusso 3.0 v6 12v Manual (on the to-do list)

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scarecrow

Post by scarecrow »

or a meal
Linegeist
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Post by Linegeist »

Just to get back on subject ......................... :wink: ...................... I think you'll find this is a product of the aerodynamics of the 'Kamm chop' BX bodyshell.

My Athena had an aftermarket exhaust fitted when I bought it, and the tailpipe varied significantly from the OE pattern. Every time I opened the sunroof, the car started to stink of exhaust fumes ............

After much futzing, about-buggering and auto-phrenology (none of which worked) I circumcised the tailpipe, and reattached it using the MIG welder with a 2" extension (oooer nurse!! :shock: ) and a 20 degree twist that pointed the outlet straight down rather than half left .....

Result? The exhaust gases now emerge into a turbulent area where the airflow whips them away from the car rather than up and over - so no more fumes. \:D/
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rayfenwick
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Post by rayfenwick »

By jove - I think he's got it!

I wonder if the problem is affected noticeably by which spoiler is fitted (if any)...
Ray

The Fleet (most recent first):
2000 Citroën XM 3.0 24V V6 Exclusive Auto (pre-MOT)
1997 Citroën XM 2.0 TCT Exclusive Auto (for sale)
1979 Citroën CX 2.4 EI Cmatic Prestige (slowly being restored)

1992 Alfa Romeo 164 Lusso 3.0 v6 12v Manual (on the to-do list)

www.citroencarclub.co.uk
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