11-21-2017, 08:28 AM | #1 |
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M Performance Exhaust Crack
I was ready to purchase a 2015 M3 with MPE but after doing some research on the exhaust, some owners have encountered cracks. The seller is now having it replaced under warranty.
Has BMW remedied this problem by updating the part with holes to reduce pressure. This was done to the E92 MPEs V2. It’s a great exhaust, but I prefer not to deal with a consistent issue if there’s no permanent fix. |
11-21-2017, 09:37 AM | #4 |
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From what I understand, BMW has not done anything to remedy the issue. I've had mine replaced once thus far. Some users have had theirs replaced multiple times, but it seems to depend on how you drive.
If you're buying an F80 with one already installed, I'd say go for it as long as you're not paying a premium for accessories. You can always upgrade later. |
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11-21-2017, 03:00 PM | #7 |
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10k miles here. No cracks here.
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11-21-2017, 06:50 PM | #9 | |
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11-22-2017, 09:01 AM | #10 |
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I had a mpe replaced under warranty but i only put 300 miles on it so far. So I can't tell you if it's a newer version or it is the same one as before. Welds looks great on the exhaust though.
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11-22-2017, 03:16 PM | #11 |
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11-24-2017, 12:58 AM | #12 |
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Is it from the hangar placements? Maybe the exhaust moves around to much (vibration)? I'm not familiar with its mounting, just throwing some ideas out.
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11-27-2017, 11:55 AM | #14 |
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Alright. I am about to purchase a brand new MPE. I understand it comes with a two-year warranty, so I am not concerned about the cracking issue during the first two years. My question pertains to repairs that have to be done after the warranty period expires. When it cracks is this something that can be fixed by re-welding the area that has the crack or is it necessary to replace the entire MPE system? I just don't want to buy a product that has the potential to become disposable after two years when the warranty is no longer in effect. Thanks!
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11-27-2017, 01:39 PM | #15 | |
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I'm not exactly sure if a stuck valve can be repaired or if a full replacement is necessary. When I had mine replaced, both problems occurred. |
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04-05-2018, 09:30 AM | #17 |
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The cracked MPE's I have seen in pictures looked like they have been through some serious heat (discoloration). I keep my valves open 98% of the time and my MPE still looks brand new after a year and 11k miles. I wonder if that's the key to preventing the cracking issue but I guess time will tell.
The other thread mentioned a revised MPE with a different part number planned for June.
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04-05-2018, 10:48 PM | #21 |
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Drives: 2016 BMW M3
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Almost 9k miles and not cracks.
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04-12-2018, 09:59 PM | #22 |
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My MPE having some sort of issues. My dealer checked it: both time it getting loose somehow. I am not getting what do they mean by "loose" component...Hmmm
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