Did a thermostat replacement today (a lot of pics) - Page 2 - BMW M5 Forum and M6 Forums
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post #11 of 554 Old 3rd October 2009, 05:18 AM
Hdhntr23
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As crazy as it sounds it drives much smoother than it did before. Nice strong pull even steady acceleration.

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MKIV, Sirius Retrofit, BlueTooth Retro-Fit, E60 SSK, ACS Aluminum Pedals, 30% Window Tint, TEC CupHolder, 2X's Ultimate Cup Holders, Full LED upgrade (Thanks Timmay77), "M" Stitched Alcantara Shiftboot and E-Brake boot, CF Steering wheel trim (Thanks CGRM5), Euro-Dash (Thanks Raz and Timmay77), Hella TC-400 TPMS, Scosche BlueTooth 2.0 A2DP Adapter (Thanks btmlinedan) Euro "Safety kit" Fire Extinguisher and First Aid box (Thanks Slimmbones)

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Current Performance Mods:
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post #12 of 554 Old 3rd October 2009, 05:56 AM
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home safe tim-- editing already probably in the doghouse for the next few days but well worth it, thanks agin

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post #13 of 554 Old 6th October 2009, 12:14 AM
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What was the parts list? $230 bucks for a $20 thermostat and $2 worth of O-rings is a bit steep. I know BMW parts tend to be on the expensive side, but come on.

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post #14 of 554 Old 6th October 2009, 02:31 AM
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Quote:
Originally Posted by Wildstar View Post
What was the parts list? $230 bucks for a $20 thermostat and $2 worth of O-rings is a bit steep. I know BMW parts tend to be on the expensive side, but come on.

look at that t-stat - looks way different then any "normal" one

RealOEM.com BMW E39 M5 Waterpump - Thermostat

books for ~145 bucks, holy crap!

and the o-ring on it must be made out of unicorn horn @ 47bux

temp ensor is a 25 dollar part, not too bad

+ all the misc orings

the t-stat is really what gets expensive, yikes

tischer comes out to about 160 bucks + coolant

Last edited by tongboy; 6th October 2009 at 02:33 AM.
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post #15 of 554 Old 6th October 2009, 03:07 AM
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Quote:
Originally Posted by Wildstar View Post
What was the parts list? $230 bucks for a $20 thermostat and $2 worth of O-rings is a bit steep. I know BMW parts tend to be on the expensive side, but come on.
Quote:
Originally Posted by tongboy View Post
look at that t-stat - looks way different then any "normal" one

RealOEM.com BMW E39 M5 Waterpump - Thermostat

books for ~145 bucks, holy crap!

and the o-ring on it must be made out of unicorn horn @ 47bux

temp ensor is a 25 dollar part, not too bad

+ all the misc orings

the t-stat is really what gets expensive, yikes

tischer comes out to about 160 bucks + coolant
Wouldnt lie bro. I can send you a scanned in copy of my receipt if youd like?

That was including my 20% discount that I get for knowing the parts guy. I get the same prices as Tischer minus the shipping.

Dont forget your gallon jug of DISTILLED water!!!

Tongboy, thats about right. Some people do the water pump too, imagine the costs then? Also the bottom sensor is another $22ish, but as I said earlier I had already replaced that chasing down my Peake code.

Current Interior Mods:
MKIV, Sirius Retrofit, BlueTooth Retro-Fit, E60 SSK, ACS Aluminum Pedals, 30% Window Tint, TEC CupHolder, 2X's Ultimate Cup Holders, Full LED upgrade (Thanks Timmay77), "M" Stitched Alcantara Shiftboot and E-Brake boot, CF Steering wheel trim (Thanks CGRM5), Euro-Dash (Thanks Raz and Timmay77), Hella TC-400 TPMS, Scosche BlueTooth 2.0 A2DP Adapter (Thanks btmlinedan) Euro "Safety kit" Fire Extinguisher and First Aid box (Thanks Slimmbones)

Current Exterior Mods:

"Always-On" DRL Predator ICE LED 6000K AE's (Thanks Timmay77 and NavCoder), C-Fiber Kidney Grills (Thanks Havasusteve03Beast), ACS C-Fiber Roof Spoiler, ACS Flipper style C-Fiber Front Splitters, C-Fiber OEM Trunk Spoiler, C-Fiber Eye-Lids (Thanks CGRM5), Custom "vented" C-Fiber Rear Diffuser (Thanks Timmay77, ATLANTAM5 and Diny), Euro Headlights, (Thanks CGRM5), C-Fiber 6 piece window sills, 7 Piece C-Fiber Blue/Grey Roundels, Stainless vented custom Fog-Light frames, Hamann style sideskirts w/ CFiber Inserts, Projector Fogs

Current Performance Mods:
Dinan Exhaust cans (Thanks Timmay77 and btmlinedan), Brake duct mod with "Black Chrome" custom rings (Thanks Timmay77 and Diny), Dinan RSB with BeastPower brackets (Thanks Firehire, MFreakin5 and btmlinedan), Stoptech slotted rotors with StopTech Street Performance Brake Pads (Thanks Zeckhausen Racing Timmay77 and Lunker325)
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post #16 of 554 Old 6th October 2009, 03:10 AM
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just an fyi, you dont have to remove the oil lines from the vanos, you can simply unbolt the bracket from the pump.
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post #17 of 554 Old 6th October 2009, 03:11 AM
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Oh and the big O ring that goes inside the T-Stat housing, its made of a wicked hard plastic/rubber on top of a metal ring. I saw the carnage on Friday @ my boy Tim's house and the old one had to be ripped out with pliers.

Current Interior Mods:
MKIV, Sirius Retrofit, BlueTooth Retro-Fit, E60 SSK, ACS Aluminum Pedals, 30% Window Tint, TEC CupHolder, 2X's Ultimate Cup Holders, Full LED upgrade (Thanks Timmay77), "M" Stitched Alcantara Shiftboot and E-Brake boot, CF Steering wheel trim (Thanks CGRM5), Euro-Dash (Thanks Raz and Timmay77), Hella TC-400 TPMS, Scosche BlueTooth 2.0 A2DP Adapter (Thanks btmlinedan) Euro "Safety kit" Fire Extinguisher and First Aid box (Thanks Slimmbones)

Current Exterior Mods:

"Always-On" DRL Predator ICE LED 6000K AE's (Thanks Timmay77 and NavCoder), C-Fiber Kidney Grills (Thanks Havasusteve03Beast), ACS C-Fiber Roof Spoiler, ACS Flipper style C-Fiber Front Splitters, C-Fiber OEM Trunk Spoiler, C-Fiber Eye-Lids (Thanks CGRM5), Custom "vented" C-Fiber Rear Diffuser (Thanks Timmay77, ATLANTAM5 and Diny), Euro Headlights, (Thanks CGRM5), C-Fiber 6 piece window sills, 7 Piece C-Fiber Blue/Grey Roundels, Stainless vented custom Fog-Light frames, Hamann style sideskirts w/ CFiber Inserts, Projector Fogs

Current Performance Mods:
Dinan Exhaust cans (Thanks Timmay77 and btmlinedan), Brake duct mod with "Black Chrome" custom rings (Thanks Timmay77 and Diny), Dinan RSB with BeastPower brackets (Thanks Firehire, MFreakin5 and btmlinedan), Stoptech slotted rotors with StopTech Street Performance Brake Pads (Thanks Zeckhausen Racing Timmay77 and Lunker325)
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post #18 of 554 Old 6th October 2009, 03:33 AM
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I'm really not surprised at the cost, but I still think it ridiculous. I noticed the T-stat was relatively huge, and weird compared to most others I've ever seen. But we gotta pay to play, right?

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post #19 of 554 Old 6th October 2009, 07:37 AM
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Quote:
I'm really not surprised at the cost, but I still think it ridiculous. I noticed the T-stat was relatively huge, and weird compared to most others I've ever seen. But we gotta pay to play, right?
The t'stat is strange b/c it's designed so that if it fails, it sticks open instead of closed. Obviously as between the two failure modes the one chosen by BMW is the better, as there's less chance of being stuck somewhere and/or suffering immediate engine failure dut to "stuck closed" overheating. The other thing about the cooling system, which may also account for the "strange" design, is that the coolant flow (I think) runs the cooled coolant through the heads first, rather than in many systems where the cooled coolant runs first through the block. The advantage is that the heads are cooled more efficiently, leading to more power.

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post #20 of 554 Old 6th October 2009, 07:20 PM
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Quote:
Originally Posted by Hdhntr23 View Post
Oh and the big O ring that goes inside the T-Stat housing, its made of a wicked hard plastic/rubber on top of a metal ring. I saw the carnage on Friday @ my boy Tim's house and the old one had to be ripped out with pliers.
If you remove sensor from Thermostat housing it can be pushed out thru that hole (long screwdriver and hammer). Worked for me
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