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I have a ford fiesta mk6. Can someone please identify the hose on the left (green square) ? It's cracked right now and it's leaking cooling liquid (I think).

Here is a picture of the engine:

Ford Fiesta TDCi Engine Bay

PS: At high revs or when going uphill the car puts out a lot of smoke. Could this be related ?

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The part you are pointing to is the air intake for your engine. This pipe should be coming from the intercooler. Since your engine is a turbo diesel, this would be directly related to why your engine is smoking (assuming you mean it's smoking out the tail pipe). What is happening is if there is a crack in this pipe, your engine is not receiving all of the air pressure it should be receiving from the turbo charger. The engine itself is dumping fuel at the rate at which it would normally (especially if the crack is after the MAF), so not only is all of the fuel going to waste, it also is not getting properly burned. I would venture to assume your power is down quite a bit as well.

Get this pipe replaced as soon as possible and it should clear up your smoking issue.

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  • One more think. What's the black liquid that I see coming out of the part ? Thanks for all your help Paul.
    – user6386
    Jul 7, 2014 at 10:42
  • @user6386 ... It may be oil, but I wouldn't know without physically looking at it. I would bet if you get your intake fixed/replaced, you'll not have any issues. Losing the intake air charge from the turbo is probably causing a lot of related issues which will be cleared up after the fix.
    – Pᴀᴜʟsᴛᴇʀ2 ♦
    Jul 7, 2014 at 12:14

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