Cold air duct very loose?? - MINI Cooper Forum

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post #1 of 5 (permalink) Old Mar 10th, 2014, 11:28 AM Thread Starter
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Cold air duct very loose??

Whilst changing the turbo seal on my Dooper yesterday, I noticed the cold air duct that runs from the grille to the back of the engine was very loose.
It seems to be connected at both ends fine, just very loose and very easy to move from side to side.
I also noticed a small pipe that clips onto this duct behind the engine had come unclipped.
Clipping the small pipe back onto the air duct steadied the duct a little, but not much.

Should the airduct be rattling around like this?
What is the small pipe that clips onto the duct, just as it starts going downhill at the back of the engine?
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post #2 of 5 (permalink) Old Mar 11th, 2014, 09:54 AM
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The air piping is notoriously loose like that. If it's secured well at both ends, that is sufficient. If you are hearing excessive rattle/vibration from the piping, you can use a plastic tie to secure it more firmly.

The thin black pipe you describe is part of the brake power servo unit.
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post #3 of 5 (permalink) Old Mar 11th, 2014, 12:42 PM Thread Starter
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Thanks for the reply
I think I will secure the duct a bit better.
The movement seems to be encouraging what you've helped me identify as the brake power pipe to become unclipped.
And it looks too important to be left rattling around!
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post #4 of 5 (permalink) Old Mar 11th, 2014, 12:52 PM
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If you follow the cold air intake pipe, about halfway between the inlet at the front of the car and the air filter housing at the back of the engine, to the right of the piping is a little plastic tab with a hole in it (my dealer uses this to secure the little oil change/coolant card to). I take a long plastic zip tie, loop it around the air piping and use this little tab/flange (or whatever you want to call it) to secure the intake pipe. Stops the rattle/vibration of the piping and makes the engine nice and quiet in the cabin.

Is the clip for your brake servo pipe broken? Mine has never actually popped out. To be honest, unless it's causing cabin noise, I don't think it's a big problem if it flops around a little as the small black pipe seems to be quite stiff.
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post #5 of 5 (permalink) Old Mar 12th, 2014, 12:37 PM Thread Starter
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Little plastic tab with hole in it exactly where you described, and cold air duct now securely zip-tied.
Many thanks for the help, what an excellent site this is.
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