02-20-2023, 02:33 PM | #67 |
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2020 with about 10K miles. Checked coolant (no warning light) and found it was low with splatter around cap and tank. Made appointment to go into dealer tomorrow.
This is what we’re talking about right? This isn’t just a normal spill from it being refilled (just had my annual maintenance done like a month ago)? |
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02-20-2023, 02:49 PM | #68 |
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Yes, that one has not been sealing well. Could be the cap or maybe the tank is cracking. If enough coolant drips, it can get on the injectors, coils and wiring underneath and cause issues over time. Better to check periodically and act as soon as you see the white residue.
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carseatsm5850.50 |
02-22-2023, 11:24 AM | #69 |
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SA updated me this morning. Confirmed leak from the expansion tank. Replacement part arrives tomorrow.
Glad for the forum because I never even had a low coolant warning, just checked out of precaution. |
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dcohen13682.00 imperfectluck434.00 |
02-23-2023, 09:33 AM | #71 |
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02-25-2023, 03:18 PM | #72 |
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There is a service bulletin for this issue, updated in September.
https://www.tsbsearch.com/BMW/SI-B17-02-22/888 |
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03-14-2023, 06:36 PM | #73 | |
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Looks like this is very common! I am at 29,XXX miles. 2019 M5 Comp. |
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carseatsm5850.50 |
03-14-2023, 07:08 PM | #74 | |
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dcohen13682.00 imperfectluck434.00 |
03-15-2023, 09:09 AM | #75 |
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ResIpsaLoquitur4161.50 |
03-15-2023, 12:15 PM | #76 |
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03-15-2023, 05:14 PM | #77 |
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Took the car in, grabbed a loaner, and the dealer finished in 2 hours. Was an easy fix.
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ResIpsaLoquitur4161.50 |
04-05-2023, 09:54 AM | #80 |
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I got a low coolant warning yesterday right after I noticed a large puddle under my car. I am assuming they are connected. Brought the car right into the dealer and they gave me a 430i loaner (I hate that car--just so ugly and you realize how well the M5 drives when you drive the 430i).
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04-05-2023, 10:56 AM | #81 |
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Dealership called me and said something hit the actual cooling unit and it is not covered under warranty and it costs $2,300. Can anyone advise if I am being screwed?
It is the Right Side Auxiliary Low Temperature Cooler that has a puncture and is leaking. Last edited by LASpartan; 04-05-2023 at 11:03 AM.. |
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04-05-2023, 11:12 AM | #82 |
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Dealership will usually be the highest price. You could probably buy a used one on eBay for $250, buy a couple of gallons of G12 and distilled water for $50 and change it in 3 hours, but I have not actually done the job so I am guesstimating. Independent shop would usually be less than the dealer.
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LASpartan104.00 |
04-05-2023, 11:16 AM | #83 | |
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Last edited by LASpartan; 04-05-2023 at 11:25 AM.. |
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04-05-2023, 06:46 PM | #84 |
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For $2,300 there must be something more than replacing that tank. Was there collateral damage? What could have possibly hit the tank under the hood. I assume this is the passenger side tank.
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04-05-2023, 08:53 PM | #86 |
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They are relatively cheap. But dealers and dealer labor make anything expensive.
https://parts.bmwofsouthatlanta.com/...or-17118620207 |
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04-07-2023, 05:42 PM | #87 | |
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10-31-2023, 09:05 PM | #88 |
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2021 M5C, 13.7K miles. I had the "engine coolant level low" error message pop up after a cold start tonight for about 4 seconds that went away on its own. Temp outside was 34 degrees. I drove away and the error message didn't come back. Stopped and started a few more times while running errands and still nothing.
I'm going to check out the fluid level tomorrow and see if it's actually low but made an appointment with my dealer on Monday to check for a leak and going to show them the TSB and probably just push to get it replaced under warranty. |
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