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      11-11-2017, 07:33 PM   #1
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Weird exhaust sound

Hi all,

For some reason my 228i sounds like a tractor at startup, it is extremely humiliating Any idea what caused it?

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Last edited by PowerfulF22; 11-11-2017 at 07:41 PM..
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      11-13-2017, 09:21 AM   #2
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You should stop putting diesel fuel in it.
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      11-13-2017, 02:50 PM   #3
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Tell everyone it's got a cam in it ;-)
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      11-13-2017, 05:58 PM   #4
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So what's the problem here guys????
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      11-13-2017, 07:12 PM   #5
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Sounds OK to me, what are you noticing that you don't like?
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      11-13-2017, 07:23 PM   #6
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Does the 228i have an exhaust flap? I honestly can't hear much on my work computer as I only get the speaker via monitor. You should hear my catless dp/MPE on start-up, John Deere himself would be impressed!
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      11-13-2017, 07:29 PM   #7
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The car sounds annoyed that you post ridiculous stuff on this forum constantly.
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      11-13-2017, 07:47 PM   #8
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Quote:
Originally Posted by Dylan86 View Post
Does the 228i have an exhaust flap? I honestly can't hear much on my work computer as I only get the speaker via monitor. You should hear my catless dp/MPE on start-up, John Deere himself would be impressed!
Yes there is a flap. The sound is just weird, like a tractor or a lawnmower
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      11-13-2017, 08:00 PM   #9
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Okay, tried it on my phone..

It almost sounds like the starter motor isn't releasing fast enough, if that makes sense? It sounds like it's staying in contact with the starter ring gear once the engine RPMs have passed the rate of speed in which the starter motor is turning. And you can almost hear the engine "choke" from the drag of the starter. It happens, just not very often. My best guess, that is

Take it to the dealer, warranty!!!
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      11-13-2017, 08:27 PM   #10
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Quote:
Originally Posted by Ron Jeffries View Post
Sounds OK to me, what are you noticing that you don't like?
If you turn up the volume, you can hear that the car sounds like my lawnmower at startup.
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      11-13-2017, 08:36 PM   #11
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Quote:
Originally Posted by Dylan86 View Post
Okay, tried it on my phone..

It almost sounds like the starter motor isn't releasing fast enough, if that makes sense? It sounds like it's staying in contact with the starter ring gear once the engine RPMs have passed the rate of speed in which the starter motor is turning. And you can almost hear the engine "choke" from the drag of the starter. It happens, just not very often. My best guess, that is

Take it to the dealer, warranty!!!
It happens quite often when the car's warm. Aside from that, the exhaust flap rattles at cold starts, but a little rev can get rid of it.

I have scheduled my service at the end of November, I'll see what I can do because honestly, Brian Jessel's service department is just a piece of sh*t. Also, this is going to be my second year service, is there anything to remind them?
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      11-14-2017, 11:42 AM   #12
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Quote:
Originally Posted by PowerfulF22 View Post
It happens quite often when the car's warm. Aside from that, the exhaust flap rattles at cold starts, but a little rev can get rid of it.

I have scheduled my service at the end of November, I'll see what I can do because honestly, Brian Jessel's service department is just a piece of sh*t. Also, this is going to be my second year service, is there anything to remind them?
Sucks about the dealership, I've heard very mixed reviews on Brian J..

I doubt they do much aside inspect and report on a 2yr? They claim almost everything fluid wise is "lifetime" service, so aside from oil/lube I doubt you'll get much extra, unless it's covered under the maintenance plan. I do more preventative maintenance than the dealer, so I don't bother having them service it, aside from oil changes when its convenient..

Maybe someone who's been through a 2yr service can shed some light in that department..
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      11-14-2017, 06:34 PM   #13
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Quote:
Originally Posted by Dylan86 View Post
Sucks about the dealership, I've heard very mixed reviews on Brian J..

I doubt they do much aside inspect and report on a 2yr? They claim almost everything fluid wise is "lifetime" service, so aside from oil/lube I doubt you'll get much extra, unless it's covered under the maintenance plan. I do more preventative maintenance than the dealer, so I don't bother having them service it, aside from oil changes when its convenient..

Maybe someone who's been through a 2yr service can shed some light in that department..
What kind of "preventative maintenance" do you usually do? I don't really trust dealer services either but there's a list of problems that I need them to check out . BJ also told me they will also change my brake fluid??? It is kind of strange that I need to change my brake fluid every 2 years
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      11-14-2017, 07:45 PM   #14
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Quote:
Originally Posted by PowerfulF22 View Post
What kind of "preventative maintenance" do you usually do? I don't really trust dealer services either but there's a list of problems that I need them to check out . BJ also told me they will also change my brake fluid??? It is kind of strange that I need to change my brake fluid every 2 years
Well aside from the oil change, I usually do or check the following (on such a new car, I glance at a lot of this, but once she gets a bit higher in mileage I'll do this on a methodical basis);

Inspect undercarriage for coolant or oil leaks
Grease all moving hinges, hood/trunk latch, etc.
Fluid levels and condition checks (I use test strips for the coolant)
Inspect the Serpentine Belt
Inspect charge piping (especially if you have the OE plastic pipes)
Front End check, for play in ball joints, tie rods, end links, check all bushings for separation, etc..
Check and set Tire Pressures
Check brakes, grease pins if completely dry (best practice, some never do this)
I Re-Torque Wheels to 105 (103 is OE spec)
I shampoo my engine after an oil change, completely unnecessary, but hey.

Don't forget that most of what the Dealer is doing is overlooking the car, looking for deficiencies in the drive line, fluid leaks, etc, not so much "servicing" the car, which is just the oil change service itself.. They follow a pretty specific guideline, provided by BMW.

The dealer did my brake fluid once while in for an oil service, without mentioning it, and they actually flushed my race fluid (Motul RBF660), I was pissed but couldn't really justify making an issue of it, as I could open doors to conversations I'd rather not have with my SA And don't forget, they get paid by BMW NA for doing these services, as per the maintenance plan, which is why they're KEEN on doing them, when they can.
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      11-25-2017, 08:09 PM   #15
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Quote:
Originally Posted by PowerfulF22 View Post
It happens quite often when the car's warm. Aside from that, the exhaust flap rattles at cold starts, but a little rev can get rid of it.

I have scheduled my service at the end of November, I'll see what I can do because honestly, Brian Jessel's service department is just a piece of sh*t. Also, this is going to be my second year service, is there anything to remind them?
My son's M235 with MPE has a rattle noise on a cold startup which I'm certain is the flap. This is something that just started about a month ago. Did you take it to the dealer and if so, what did they say?
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