Long Term

Frupal · 02-05-2024, 11:23 AM

I'm thinking of joining the 8 family. Either with an Alpina B8 or an M850i GC. (I'm not a fan of the M8 ride) How has this engine been long (ish) term? Any of the oil consumption problems of earlier versions? Coolant spraying through the overflow tank? How about tire wear? I read that these beasts EAT them. Any feedback is much appreciated!

Tenac · 02-05-2024, 11:34 AM

Flawless

overklok · 02-06-2024, 03:42 PM

Coolant overflow reservoir seems to be the big issue with these vehicles.

Wavy · 02-06-2024, 05:03 PM

I only had my B8 for a little under a year but I haven't had any drivetrain issues.

Johnny Boost · 02-06-2024, 05:32 PM

Quote:

Originally Posted by overklok

Coolant overflow reservoir seems to be the big issue with these vehicles.

Source?

Dr Thrillride · 02-06-2024, 09:51 PM

Quote:

Originally Posted by overklok

Coolant overflow reservoir seems to be the big issue with these vehicles.

But yet none reported by M8 and M850 owners

Justao · 02-07-2024, 04:08 AM

Quote:

Originally Posted by Dr Thrillride

But yet none reported by M8 and M850 owners

That’s a false statement. M8/M5 shares the same engine and same coolant reservoir… I have changed mine twice already for my M8… even the “upgraded” reservoir with new part number has failed for me… luckily it didn’t cause any issues as I’m checking the coolant reservoir regularly for any visible corrosion

Hooterbeans · 02-07-2024, 06:13 AM

Have you tried the aftermarket one mentioned elsewhere? Anyone had an issue with it?

Dr Thrillride · 02-07-2024, 07:10 AM

Quote:

Originally Posted by Justao

That’s a false statement. M8/M5 shares the same engine and same coolant reservoir… I have changed mine twice already for my M8… even the “upgraded” reservoir with new part number has failed for me… luckily it didn’t cause any issues as I’m checking the coolant reservoir regularly for any visible corrosion

Can you point me to your post please. Love to read about it.

Frupal · 02-07-2024, 04:11 PM

Quote:

Originally Posted by overklok

Coolant overflow reservoir seems to be the big issue with these vehicles.

I have read about this countless times. There is an After market solution for about $1200.00. Why BMW doesn’t just FIX this blows my mind. I wonder if Alpina has the same issue, or did they handle it?

Frupal · 02-07-2024, 04:12 PM

Quote:

Originally Posted by Wavy

I only had my B8 for a little under a year but I haven't had any drivetrain issues.

Thanks for this. I have heard that the M8 M850i have problems with the coolant reservoir. I wonder if Alpina has addressed this?

Dr Thrillride · 02-07-2024, 08:03 PM

https://f92.bimmerpost.com/forums/sh....php?t=2076262

375 views, nadda from 8 series and M8 forum members

https://f92.bimmerpost.com/forums/sh....php?t=2072852

More views, nadda

Are you sure this wasn’t just an issue on the 5 series and M5s?

Wavy · 02-07-2024, 11:03 PM

Quote:

Originally Posted by Frupal

Thanks for this. I have heard that the M8 M850i have problems with the coolant reservoir. I wonder if Alpina has addressed this?

A lot of parts under the hood are beefier or larger than the M850i but I'm not sure about the coolant reservoir specifically.

Maybe someone can cross check the part numbers?

__AD__ · 02-07-2024, 11:46 PM

Quote:

Originally Posted by Wavy

A lot of parts under the hood are beefier or larger than the M850i but I'm not sure about the coolant reservoir specifically.

Maybe someone can cross check the part numbers?

550, 750, and 850 share larger expansion tank. 550, 750, 850, x5/6/7 share the smaller expansion tank.

Frupal · 02-08-2024, 06:58 AM

Quote:

Originally Posted by Dr Thrillride

https://f92.bimmerpost.com/forums/sh....php?t=2076262

375 views, nadda from 8 series and M8 forum members

https://f92.bimmerpost.com/forums/sh....php?t=2072852

More views, nadda

Are you sure this wasn’t just an issue on the 5 series and M5s?

Not sure at all!

Justao · 02-08-2024, 07:18 AM

Quote:

Originally Posted by Dr Thrillride

https://f92.bimmerpost.com/forums/sh....php?t=2076262

375 views, nadda from 8 series and M8 forum members

https://f92.bimmerpost.com/forums/sh....php?t=2072852

More views, nadda

Are you sure this wasn’t just an issue on the 5 series and M5s?

Both M5 and M8 have the same engine and shares the same coolant reservoir… hence the issue exists for both platforms… as I did mention before I’ve changed the coolant reservoir twice.. mine is MY19 and the reservoir has failed, then changed with new part number reservoir and unfortunately it has failed as well, ive noticed the corrosion around where the two pieces of reservoir joins each other and didn’t want to risk it

02-05-2024, 11:23 AM	#1
Frupal Mad Fiddler 792 Rep 993 Posts Drives: 2016 BMW 640i GC Join Date: Apr 2019 Location: Los Angeles iTrader: (1)	Long Term I'm thinking of joining the 8 family. Either with an Alpina B8 or an M850i GC. (I'm not a fan of the M8 ride) How has this engine been long (ish) term? Any of the oil consumption problems of earlier versions? Coolant spraying through the overflow tank? How about tire wear? I read that these beasts EAT them. Any feedback is much appreciated!
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02-05-2024, 11:34 AM	#2
Tenac Brigadier General 4539 Rep 3,507 Posts Drives: All Join Date: Mar 2019 Location: AZ iTrader: (0)	Flawless __________________ 2022 M8 Comp Convertible 2023 718 Cayman GTS 4.0 2019 718 Cayman Base 2015 M235 Manual On the list for the M2 CS
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02-06-2024, 03:42 PM	#3
overklok Private First Class 61 Rep 142 Posts Drives: M8 Competition X2 M35i Join Date: Jul 2016 Location: Northern Virginia iTrader: (0)	Coolant overflow reservoir seems to be the big issue with these vehicles.
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02-06-2024, 05:03 PM	#4
Wavy Captain 1176 Rep 842 Posts Drives: B8 Join Date: May 2015 Location: SoCal iTrader: (0)	I only had my B8 for a little under a year but I haven't had any drivetrain issues. __________________ '23 B8, '84 Monte Carlo SS, '23 Escalade, '21 S 580, '20 AMG GT 53 , '18 LS 500, '18 X6, '16 Corvette, '12 750Li, '14 GS 350, '13 ES 350, '10 Maxima, '09 Challenger
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02-07-2024, 06:13 AM	#8
Hooterbeans Member 38 Rep 34 Posts Drives: 2023 M850 Convertible Join Date: Sep 2022 Location: Dallas iTrader: (0)	Have you tried the aftermarket one mentioned elsewhere? Anyone had an issue with it?
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02-07-2024, 08:03 PM	#12
Dr Thrillride Major 1399 Rep 1,070 Posts Drives: 2022 M8cs Join Date: May 2016 Location: Canada iTrader: (0) Garage List 2022 BMW M8 comp coupe [0.00]	https://f92.bimmerpost.com/forums/sh....php?t=2076262 375 views, nadda from 8 series and M8 forum members https://f92.bimmerpost.com/forums/sh....php?t=2072852 More views, nadda Are you sure this wasn’t just an issue on the 5 series and M5s?
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