Pretty good deal on coolant expansion tank - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #1 of 12 Old 7th June 2019, 05:04 AM Thread Starter
BWM
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Pretty good deal on coolant expansion tank

https://www.ecstuning.com/b-genuine-...17112229114kt/

Or if you want just the tank: https://www.ecstuning.com/b-genuine-...k/17112229114/

When you check most places, the price is higher without the cap and coolant.

I'm aware that these are pretty robust from factory but it would look good on my shelf with other spare parts, lol.

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Last edited by BWM; 7th June 2019 at 05:06 AM.
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post #2 of 12 Old 7th June 2019, 05:43 AM
PNWe39Guy
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Might have to order this. Mine is looking a little... yellow'd...

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post #3 of 12 Old 7th June 2019, 05:49 AM Thread Starter
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Quote:
Originally Posted by PNWe39Guy View Post
Might have to order this. Mine is looking a little... yellow'd...
As I said and most will agree, these are by far superior to M62 tanks for example. Is it the construction, much lower operating temp which corresponds to lower operating pressure etc...it's probably little bit of everything.
Having said all of that, that brand new big white tank sure looks nice in engine bay. I'm very tempted myself. I already have new radiator and both upper and lower hose. This would complete the deal.
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post #4 of 12 Old 7th June 2019, 06:46 PM
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Especially with free shipping, that's a great deal! Prior to shipping costs, Morristown's price is only a couple of bucks less just for the tank: https://www.trademotion.com/parts/in...&siteid=214320

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post #5 of 12 Old 7th June 2019, 07:56 PM
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It is the yellowing thing that drives me crazy. I replaced mine many years ago, now you can't tell it from the original yellowed, but strong reservoir, likely 5 - 7 years. You could see the yellow ting by the end of a year and after two it was clearly not white, but yellow.
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post #6 of 12 Old 8th June 2019, 04:30 PM Thread Starter
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Originally Posted by CSBM5 View Post
Especially with free shipping, that's a great deal! Prior to shipping costs, Morristown's price is only a couple of bucks less just for the tank: https://www.trademotion.com/parts/in...&siteid=214320
Yes, it's quite rare to beat Morristown's price when it comes to genuine BMW parts.
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post #7 of 12 Old 8th June 2019, 04:34 PM Thread Starter
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Quote:
Originally Posted by Sailor24 View Post
It is the yellowing thing that drives me crazy. I replaced mine many years ago, now you can't tell it from the original yellowed, but strong reservoir, likely 5 - 7 years. You could see the yellow ting by the end of a year and after two it was clearly not white, but yellow.
Probably formulation / grade of plastic used. For example, I've replaced the 15 year old one on my 97 528 and it wasn't much yellowed while new BMW one was only slightly more white. Nevertheless, the M5 one seems quite well built as we don't see many failures reported.

2003 BMW M5 Blue Water Metallic
VDO oil pressure gauge * ZHP weighed shifter * Euro leather armrest * Spal electric fan * Bilstein B6 (stock springs retained) struts and shocks * Supersprint headers, HJS cats, X pipe, Vibrant Performance resonators, Supersprint Magnum mufflers and all new SS T304 Vibrant Performance mandrel bend tubing.

2003 BMW X5 4.6is Saphire Black Metallic
1997 BMW 528iA Alpine White
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post #8 of 12 Old 8th June 2019, 04:51 PM Thread Starter
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6-8-19 update.

Just ordered the kit version. That price was simply too good to pass on. It'll sit on shelf with brand new spare water pump and whichever one fails first, they will both get installed and I'll have complete new coolant system (radiator, thermostat and upper / lower hose replaced previously)

2003 BMW M5 Blue Water Metallic
VDO oil pressure gauge * ZHP weighed shifter * Euro leather armrest * Spal electric fan * Bilstein B6 (stock springs retained) struts and shocks * Supersprint headers, HJS cats, X pipe, Vibrant Performance resonators, Supersprint Magnum mufflers and all new SS T304 Vibrant Performance mandrel bend tubing.

2003 BMW X5 4.6is Saphire Black Metallic
1997 BMW 528iA Alpine White
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post #9 of 12 Old 12th June 2019, 04:05 AM
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I remember when these were a little over $50. Wow

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post #10 of 12 Old 13th June 2019, 04:07 PM Thread Starter
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Originally Posted by Silent View Post
I remember when these were a little over $50. Wow
I guess it's nothing unusual. If we consider let's say 2009 $ values vs 10 years later and the fact M5 is already in "classic" section on real oem, the price is still high but not as outrageous as pork chops which we can argue it's cheaper to produce.
As I mentioned earlier, new white reservoir has really nice visual effect in engine bay vs yellow one. At least for a few years anyway.
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