02-28-2020, 12:20 AM | #1 |
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Strange smell with window down
Does anyone notice a strange almost burning sweet smell after you've driven for a while and only when you do the window down. Car has done 7000 miles
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02-28-2020, 08:06 AM | #3 |
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I do get a smell after some hard driving especially in S, S+. Not sure its sweet, but its a smell
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02-28-2020, 09:14 AM | #4 |
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Definitely sounds like coolant (aka the sweet smell). Check the ground before and after you park.
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02-28-2020, 10:32 AM | #6 |
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Because like with anything, manufacturing processes are not perfect every time. A loose hose, a foreign object piercing the hose, etc etc etc.
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02-28-2020, 11:31 AM | #7 |
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02-28-2020, 11:33 AM | #8 |
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02-28-2020, 12:06 PM | #9 |
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I would take it in and have the dealer look at it. They'll hoist it up and check it out. Peace of mind for your $60K+ car.
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02-28-2020, 01:06 PM | #10 |
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During breaking-in period (1.2K miles / 2K kms) some plastic/synthetic smell is perfectly normal after a drive. But OP's car is already beyond that stage (7K miles).
MrMurkle, any such smell in the earlier stages (break-in period) or did this only occur more recently ? A couple of M2 smell related threads (cosmoline, cavity wax, sunroof lube, rodents damage, etc.), except for exhaust fuel smell threads:Also, unpleasant odors can be experienced in the immediate environment by temporarily suspending the supply of outside air (airco: driving in recirculated-air mode).
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02-28-2020, 03:23 PM | #11 | |
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Dealer visit is likely best option though I suspect they won't find it... Last edited by Got f1?; 02-28-2020 at 03:24 PM.. Reason: Grammar |
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02-28-2020, 08:13 PM | #12 | ||
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Quote:
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02-28-2020, 09:23 PM | #13 | |
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05-10-2022, 11:12 AM | #14 |
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Smell with window down
Got the same problem with my 2020 M2C.
The smell comes from the climate unit, which, as soon as you open a window, notices the change of air pressure and opens a valve/flap and creates a different airflow for the fresh air intake as opposed to the closed window state. My guess is that the engine bay is so cramped, especially with the second turbo added, that the plastic of the air intake looses some softener due to the heat wich then creates the smell. Switching the climate fresh air intake on your climate controls to closed circulation reduces the smell by a serious amount. The last button next to the Max Button does the trick (the one with the little car). You can chose between off (no light) automatic ("A" has a green diode lit above it) or Manual (The "M" has a green diode lit up above it) Switching to Manual (M) is the one you want to go with. Sorry for the clumsy description, wanted to upload a picture, but the forum software wouldn't take it... Unfortunately the setting self cancelles after a while, so you got to switch it in manual mode again. When it gets chilly in the eavening, you can notice also some warmth coming to the legroom, so you definitely know it originates from the climate unit. (this post is best read with a german accent ) |
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