[NotGotABimmer23]

Picked up my 340i touring with mppsk today, sounds absolutely fantastic, cant believe bmw ever signed off a system this loud. Anyway its rattling.... heard this is fairly common but typically bmw can't fit me in to check it out.

Anyone had the rattle? How was it resolved.

[Abzynthe]

Originally Posted by kylemacca01

Picked up my 340i touring with mppsk today, sounds absolutely fantastic, cant believe bmw ever signed off a system this loud. Anyway its rattling.... heard this is fairly common but typically bmw can't fit me in to check it out.

Anyone had the rattle? How was it resolved.

I had mine fitted today, they just said if it rattles bring it in and they will adjust it. Must be a common thing. I'm sure if you push them a bit and say this should have been picked up before you collected the car, then they may find a slot for you.

[NotGotABimmer23]

Originally Posted by Abzynthe

I had mine fitted today, they just said if it rattles bring it in and they will adjust it. Must be a common thing. I'm sure if you push them a bit and say this should have been picked up before you collected the car, then they may find a slot for you.

I tried, they are being very stubborn. I would have expected to be able to pop in tomorrow morning and get it sorted in half an hour. I would have turned around and taken it back but i was in a rush.

[330Stevie]

Can’t believe the numbers on here that have had the rattle. Do they not check it after fitting?!

[NotGotABimmer23]

Originally Posted by 330Stevie

Can’t believe the numbers on here that have had the rattle. Do they not check it after fitting?!

I guess on a brand new car they dont want to put any mileage on it. It seems to be pretty much guaranteed.

[chris-c]

Originally Posted by kylemacca01

I guess on a brand new car they dont want to put any mileage on it. It seems to be pretty much guaranteed.

Could be. The guys from Reading put on 5-10miles "testing" it out. I hope they was beating the hell out of it. No point in going for a shake down test without giving it some.

Mine rattled really really badly when I picked it up. I almost turned around to take it back. Instead I "turned around" and saw the stoplock on the back seat rattling away with the rumble.

[NotGotABimmer23]

Originally Posted by chris-c

Could be. The guys from Reading put on 5-10miles "testing" it out. I hope they was beating the hell out of it. No point in going for a shake down test without giving it some.

Mine rattled really really badly when I picked it up. I almost turned around to take it back. Instead I "turned around" and saw the stoplock on the back seat rattling away with the rumble.

Haha, im sick of going back and forth to the dealer and taking days off work to sort it. Right pita. Probably going to have to though i guess.

[rlmesq]

Mine had a very pronounced clatter that sounded like the dry clutch on a Ducati. The MPPSK was port installed on my 2018 440i and, after reading some of the posts, I just assumed "they all did that."

When it was in for other service, one of the tech thought something was amiss, so he asked me to leave it for a day. After some checking, he found the butterfly valve on the right side was just flapping on the center post, instead of opening and closing as designed. They eventually replaced the exhaust.

I would start by peering into the ends of the exhaust tips with the engine switched off. Gently poke the valves with a screwdriver to see if there is resistance, or if they're flapping loose like mine was.

[NotGotABimmer23]

Originally Posted by rlmesq

Mine had a very pronounced clatter that sounded like the dry clutch on a Ducati. The MPPSK was port installed on my 2018 440i and, after reading some of the posts, I just assumed "they all did that."

When it was in for other service, one of the tech thought something was amiss, so he asked me to leave it for a day. After some checking, he found the butterfly valve on the right side was just flapping on the center post, instead of opening and closing as designed. They eventually replaced the exhaust.

I would start by peering into the ends of the exhaust tips with the engine switched off. Gently poke the valves with a screwdriver to see if there is resistance, or if they're flapping loose like mine was.

I dont think its the valve, sounds like its coming from under the front seats. Hopefully if that is the case its a really quick fix. Id do it myself if i had a ramp.

[RustyBitz]

Take it back it's a well known fault with installation.

Show them this thread:
http://f30.bimmerpost.com/forums/sho....php?t=1424716

[Malone]

Originally Posted by kylemacca01

I dont think its the valve, sounds like its coming from under the front seats. Hopefully if that is the case its a really quick fix. Id do it myself if i had a ramp.

If it’s coming from under the front set, it sounds like the usual exhaust bolt/heat shield issue. Bolt needs cutting down or clamp rotating.
When we had the problem with ours, I emailed the link from this site to the service department. Also - do you have BMW Assist? If so, just ring them and get them to collect the car - the dealership will have to take it in and you’ll get a hire car dropped off to you.

[KCH1984]

Originally Posted by kylemacca01

Picked up my 340i touring with mppsk today, sounds absolutely fantastic, cant believe bmw ever signed off a system this loud. Anyway its rattling.... heard this is fairly common but typically bmw can't fit me in to check it out.

Anyone had the rattle? How was it resolved.

Pics of new car? Preferably some interior shots of the individual interior

[NotGotABimmer23]

Originally Posted by KCH1984

Pics of new car? Preferably some interior shots of the individual interior

I will try, not really the weather for it today. The merino seats are so nice they really elevate the cabin as does the digital dash. I know its not as functional as the audi one but it looks so cool. Got the m performance carbon trim which i have always liked and is fairly cheap these days. Really happy with the car, mppsk is the star of the show, sounds brutal. Just makes it so fun to drive, even at 25mph its a great laugh.

[KCH1984]

Originally Posted by kylemacca01

I will try, not really the weather for it today. The merino seats are so nice they really elevate the cabin as does the digital dash. I know its not as functional as the audi one but it looks so cool. Got the m performance carbon trim which i have always liked and is fairly cheap these days. Really happy with the car, mppsk is the star of the show, sounds brutal. Just makes it so fun to drive, even at 25mph its a great laugh.

Look forward to seeing it in better light then - did you also go for the m perm exterior kit? I'm currently considering a job change which would likely see me exchange the motorway for the train, so my wife and I might end up going to 1 car between us. A 340i touring (with obligatory MPPSK) could well fit the bill as overall I do like the F30/31 but agree that the cabin (in standard form) is feeling its age versus the competition. My mate has the merino in his 435d and it's a lovely place to sit, definite step up over mine and well worth the outlay on a 40k plus car IMO.

[NotGotABimmer23]

Originally Posted by KCH1984

Look forward to seeing it in better light then - did you also go for the m perm exterior kit? I'm currently considering a job change which would likely see me exchange the motorway for the train, so my wife and I might end up going to 1 car between us. A 340i touring (with obligatory MPPSK) could well fit the bill as overall I do like the F30/31 but agree that the cabin (in standard form) is feeling its age versus the competition. My mate has the merino in his 435d and it's a lovely place to sit, definite step up over mine and well worth the outlay on a 40k plus car IMO.

No i didnt get any of the external parts. Just exhaust and interior. Couldnt justify spending anymore and i think it looks really good already. May add the diffuser at some point but imo the spiltter is too low and the side blades look odd without the splitter.

[B58_Touring]

It'll be the exhaust hitting the heat shield studs under the drivers seat. They just need trimming down. Common miss when installing surprisingly but simple enough to sort

[BMWChap]

Originally Posted by JonBk

It'll be the exhaust hitting the heat shield studs under the drivers seat. They just need trimming down. Common miss when installing surprisingly but simple enough to sort

What he said... easily sorted

[NotGotABimmer23]

Good to know, didnt really notice it today, seems a bit hit or miss. Sounds mental though!

[B58_Touring]

Originally Posted by kylemacca01

Good to know, didnt really notice it today, seems a bit hit or miss. Sounds mental though!

Yeah mine only made a noise when it was either really hot, driving over those rumble strips approaching a roundabout or reversing onto my drive. Took it in and showed the technician a picture of the known problem and since then its been fine

[Chris330]

Had the same issue when I first had it installed in Sept 2016 and is easily fixed.

Don't let it cloud you enjoyment of the MPPK

[NotGotABimmer23]

Originally Posted by Chris330

Had the same issue when I first had it installed in Sept 2016 and is easily fixed.

Don't let it cloud you enjoyment of the MPPK

Oh im not! Car is brilliant, i had a 340i as a courtesy while waiting for this one to be built and the combo of merino leather, digital dash and mppsk makes it feel like a totally different car.