never noticed this, but why is there only steam coming out of one exhaust pipe?

SpaceSilver.X1 · 12-09-2023, 03:55 PM

It was the first time that the temperature dipped below 20 since I got the X1 back in April. I had it warming up with my garage door open and walked back into the house to finish my coffee. I could not remote start it because the car said I had too little gas left(30 miles range remaining)

While I was looking out the kitchen window, I noticed that only one side of the rear was spewing out steam. When I went outside again and look underneath the car, the other exhaust pipes was not spewing out anything at all. Is this unusual?

Mootsj · 12-09-2023, 04:00 PM

Most of the time on cars with twin exhausts one of the pipes remains closed off until you put it in sports mode. There’s a valve inside that opens when you put it in sport.

SpaceSilver.X1 · 12-09-2023, 04:16 PM

Quote:

Originally Posted by Mootsj

Most of the time on cars with twin exhausts one of the pipes remains closed off until you put it in sports mode. There’s a valve inside that opens when you put it in sport.

Thanks! Does that mean the exhaust will be louder when I put it in sport mode? I'll have to try that tomorrow morning!

DestinationMoon! · 12-10-2023, 01:27 AM

There are cars that have fake exhaust tips to make the rear symmetrical.

Sport mode on nearly every car is nothing more than throttle mapping and gear shift adjustments to make the vehicle more responsive to throttle input.

The downside to this is fuel use. Fuel economy suffers.

Mootsj · 12-10-2023, 03:26 AM

Quote:

Originally Posted by SpaceSilver.X1

Thanks! Does that mean the exhaust will be louder when I put it in sport mode? I'll have to try that tomorrow morning!

If both exhausts are active then yes, although most modern cars are pretty quiet. Even the s3 is quiet in sports mode

BMWZ4 · 12-10-2023, 10:17 AM

Search is your friend...super old topic on every single bmw model

SpaceSilver.X1 · 12-10-2023, 10:25 AM

Quote:

Originally Posted by BMWZ4

Search is your friend...super old topic on every single bmw model

seems like there are a lot of "BMW exhaust flap hack" threads!

BMWZ4 · 12-10-2023, 10:30 AM

Quote:

Originally Posted by SpaceSilver.X1

seems like there are a lot of "BMW exhaust flap hack" threads!

Ok...related how?...in any case, google will lead you to many threads across many diff BMW models from peeps asking this very question

12-09-2023, 03:55 PM	#1
SpaceSilver.X1 world's slowest BMW driver 1554 Rep 1,003 Posts Drives: U11, G60, W211, AZ20 Join Date: Nov 2023 Location: no front license plate state iTrader: (0)	never noticed this, but why is there only steam coming out of one exhaust pipe? It was the first time that the temperature dipped below 20 since I got the X1 back in April. I had it warming up with my garage door open and walked back into the house to finish my coffee. I could not remote start it because the car said I had too little gas left(30 miles range remaining) While I was looking out the kitchen window, I noticed that only one side of the rear was spewing out steam. When I went outside again and look underneath the car, the other exhaust pipes was not spewing out anything at all. Is this unusual?
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12-09-2023, 04:00 PM	#2
Mootsj Private 24 Rep 57 Posts Drives: IX1 XDrive30 MSport Join Date: Nov 2023 Location: Leeds iTrader: (0)	Most of the time on cars with twin exhausts one of the pipes remains closed off until you put it in sports mode. There’s a valve inside that opens when you put it in sport.
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12-10-2023, 01:27 AM	#4
DestinationMoon! Private First Class 69 Rep 183 Posts Drives: Bmw X1 U11 Join Date: Nov 2023 Location: USA iTrader: (0)	There are cars that have fake exhaust tips to make the rear symmetrical. Sport mode on nearly every car is nothing more than throttle mapping and gear shift adjustments to make the vehicle more responsive to throttle input. The downside to this is fuel use. Fuel economy suffers.
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12-10-2023, 10:17 AM	#6
BMWZ4 Major General 1926 Rep 5,115 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	Search is your friend...super old topic on every single bmw model __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
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