08-21-2020, 07:11 AM | #1 |
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Exhaust manifold leak confirmed by Indy and BMW dealer
Many have been extremely helpful and I have not even been on this forum long. Thanks in advance for any advice that's offered!
What else should be replaced (or looked at closely) while the engine is taken apart to replace both exhaust manifold gaskets. Maybe I should start a go fund me page for two w.4 turbos / Pure Turbos and two 200 cell down pipes AKTIV Automotive and BMW of Silver Spring have arrived at the same conclusion. My M5 has an exhaust manifold leak on the US passenger side. The estimates include parts, labor and shop fees to replace both passenger and diver side exhaust manifold gaskets. AKTIV Automotive: ~$1,550 - $250 (Concord payment) = $1,300Here's where it all began (Click Here)
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08-22-2020, 01:43 AM | #2 | |
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08-23-2020, 10:19 AM | #3 | |
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08-24-2020, 07:04 AM | #4 | |
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08-24-2020, 08:16 AM | #5 |
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While on the web I will saw pics where someone had wrapped the turbo oil lines in a heat resistant material ...similar to the top of engine turbo coolant lines. I also read there's a "canister" that is suggested to be replaced when this job is done. I will try to re-locate and insert the part numbers if all turns out to be pertinent/true.
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08-24-2020, 11:35 PM | #6 | |
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This happened to me on my x5, I was told the turbos were shot as or was burning so much oil (quart every 100, yes 100 miles). Found the turbos were fine, just blocked return lines forced the oil back into the intake. Surprised the engine never fouled out. The carbon builup was extreme, I had to Dremel the carbon out of the exhaust manifold, it was hardened like steel, walnut blasting did nothing. I'll post up some pics of all the extended heat sheilding I did on my engine later tonight for anyone interested. It made a difference in performance and engine cooling and worth it if you have to take your turbos off, especially if you track/drive your M hard or it is a daily driver in th city (debate which is harder on the engine...) Yep the CCV is what runs from the valve covers to the intakes. Last edited by Sophisticated Redneck; 08-25-2020 at 01:14 AM.. |
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08-25-2020, 01:07 AM | #7 |
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Below are pics of the heat shielding I added to the head to head coolant hose, turbo oil return lines, engine valley, and turbo heat shields to an N63 in a X5. The S63TU in the F10 M5 is very similar and everything done here will apply.
Interestingly the engine would never dip below 205-210F even with the 90c thermostat upgrade. After I added the heat shielding, I now average 190-195F, and this is in Arizona that is currently 115 out. Link to heat shielding used below also https://www.amazon.com/dp/B00YJERW40 (use the non adhesive version) |
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08-25-2020, 05:56 AM | #8 | |
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I will absolutely inspect/service these areas if I have my turbos out or suspect an issue that could be related. Thanks again. |
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08-26-2020, 08:34 AM | #9 | |
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08-26-2020, 02:43 PM | #10 |
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Thanks everyone for the great info.
The shop working on my M5 (AKTIV Automotive) called this afternoon after removing the turbos and verified the exhaust manifold bolts were loose causing the exhaust leak. I wish this would have happened during the first 5 yrs / 50k miles. Next, they had already called my warranty company (Concord) since there could be a major problem regarding the cylinder heads. Apparently they've found dried coolant. I hope to determine if and where the coolant leaked from as I am going to look at the motor tonight after work. I just did a bit of digging and can't seem to locate our vehicles having this issue on F10/F13 platforms.
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08-26-2020, 05:33 PM | #11 | |
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08-26-2020, 11:34 PM | #12 |
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After turbos were removed we found...
Here are pics after the turbos were removed.
Top Pic As you can see, the cats are on there way out after 76k miles. A Google search seems to indicate I have 8 years 80k miles of catalytic converter coverage (Click Here). Your thoughts? Bottom Pic The coolant seems to be coming from the passenger side, third from the front (cylinder 3?).
Unfortunately, I can tell this definitely is dried coolant. This may have just started leaking and I hope this not the case. I hope this is very old dry coolant stains and the leak was fixed years ago. .
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