Exhaust smell at start up - MINI Cooper Forum

MINI Cooper S Diesel MINI Cooper S Diesel 2011 - Present

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post #1 of 10 (permalink) Old Apr 1st, 2017, 09:10 AM Thread Starter
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Exhaust smell at start up

Morning

We have just bought a 12 plate 2.0 SD Countryman

Lovely car, but on start up (first thing) the cabin stinks of exhaust fumes.

I have been trying to pair my Wife's phone to the car and had to open the windows to try and get the smell out of the car.

It seems to be fine when you are driving, we did about 40 miles yesterday and the smell soon goes away.

Has anyone else had similar issues ?

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post #2 of 10 (permalink) Old Apr 1st, 2017, 09:37 AM
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If you can smell exhaust smoke then you have a leak, don't forget that carbon monoxide is odourless so even with the windows open you may be gassing yourself. Have the car looked at and find out where its leaking from before the unthinkable happens.

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post #3 of 10 (permalink) Old Apr 1st, 2017, 01:39 PM Thread Starter
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Tried the engine again this afternoon, and it stinks.

Popped the bonnet and you can smell it in the engine bay.

It is going back to the garage next week.

Hopefully it will get fettled asap.
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post #4 of 10 (permalink) Old Apr 2nd, 2017, 12:25 AM
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Better safe than sorry Cailbrin and hopefully its a quick and easy fix.
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post #5 of 10 (permalink) Old Apr 2nd, 2017, 12:59 AM
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Is there any obvious soot in and around the engine bay? It may be worth starting the car with the bonnet open and as soon as it starts then inspect the engine bay for any obvious smoke. That way you may find where the leak is. Also stick your head under the car to see if it's leaking from the exhaust pipe.
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post #6 of 10 (permalink) Old Apr 2nd, 2017, 01:59 AM
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As innocent as an exhaust leak may sound, it is something that should be taken seriously, especially if you can smell it in the cabin.

The culprit is as stated above here a leak somewhere, and you need to find it and have it fixed, until then i suggest you limit the use of the car to the necessities as carbon monoxide is rather uhm "unhealthy".
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post #7 of 10 (permalink) Old Apr 2nd, 2017, 10:06 AM Thread Starter
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Quote:
Originally Posted by SeanC View Post
Is there any obvious soot in and around the engine bay? It may be worth starting the car with the bonnet open and as soon as it starts then inspect the engine bay for any obvious smoke. That way you may find where the leak is. Also stick your head under the car to see if it's leaking from the exhaust pipe.
Thanks for the idea.

My son watched the engine bay while I started the engine and there was a plume of smoke from the silver cylinder at the top of the picture - can you tell I am a numptie when it comes to mechanical things ?

Can you someone gently tell me what the silver cylinder is ?

Cheers,
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post #8 of 10 (permalink) Old Apr 2nd, 2017, 10:38 AM
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Quote:
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Thanks for the idea.

My son watched the engine bay while I started the engine and there was a plume of smoke from the silver cylinder at the top of the picture - can you tell I am a numptie when it comes to mechanical things ?

Can you someone gently tell me what the silver cylinder is ?

Cheers,
That would be your exhaust manifold and turbo combo, the silver sheet is just a heat shield to protect other components from the heat coming off the turbo.
The little cylinder with a lead attached to it is probably an EGT (Exhaust Gas Temperature) Sensor.
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post #9 of 10 (permalink) Old Apr 2nd, 2017, 10:53 AM
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As Akkip has pointed out the silver thing is the heatshield so if the leak is coming from under here then you will need to remove it (usually a few 10mm bolts) and have a closer look. If the smoke is coming from the plug then a simple tighten may fix it. If you get the heatshield off then if you take a piece of tissue (bog roll) and hold it over the joints then it should flap about when it senses gases. This saves you from putting your face near the exhaust gases and breathing them in
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post #10 of 10 (permalink) Old Apr 2nd, 2017, 11:02 AM Thread Starter
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Thanks for the replies.

We have only had the car for 3 days, it is going back to the garage and they can fettle it.

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