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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Jun-10-2019, 07:22:34 PM   #31
JaredMV
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Default Re: At wits end bleeding coolant

I didn't read the thread so disregard if this has been mentioned before or debunked, but I believe it was terraphantom that said the M3 cooling system is self-bleeding and the only reason we have a bleeder screw is because the same hose is used in non-M's.
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Old Mon, Jun-10-2019, 07:23:37 PM   #32
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Default Re: At wits end bleeding coolant

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Originally Posted by HassanEido View Post
Ur cooling system sucks
M3 or non-M?

I found M3 coolant system is 10X better than non-M, both material and design.
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Old Mon, Jun-10-2019, 08:05:47 PM   #33
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Lightbulb Re: At wits end bleeding coolant

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Originally Posted by JaredMV View Post
I didn't read the thread so disregard if this has been mentioned before or debunked, but I believe it was terraphantom that said the M3 cooling system is self-bleeding and the only reason we have a bleeder screw is because the same hose is used in non-M's.
I never ever bled mine. Ever. It self bleeds and I never had a problem with air bubbles or coolant hoses collapsing
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Old Tue, Jun-11-2019, 03:33:47 AM   #34
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Default Re: At wits end bleeding coolant

I don't bleed it either, even after major overhaul, no issues.

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All DIY: VANOS, WPC rod bearings, full SS (SS stepped V1 headers, catted S1, stock S2, SS sport), AFD E85 Proflex kit, Ohlins R&T/Hyperco 375f Swift 672r/GC street tops and camber plates, ST40 355 pfc08, 330 ZHP steering rack, diffsonline 4.1 diff with rem polish, E60 short shifter lever, AKG black diff bushings/subframe bushings, Rogue rtab, Sachs clutch/flywheel, rear main, Beyer driveshaft, valve adjustment, cooling refresh.

Happy to help with VANOS or any other DIY job around NorCal. Have various specialty tools (VANOS, RTAB, engine bar, valve adjustment, tranny jack, ball joint separator, pilot bearing puller, tap&die kit, etc).
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Old Tue, Jun-11-2019, 07:17:12 AM   #35
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Default Re: At wits end bleeding coolant

OP car is a non M car and coolant system needs bleeding.
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Old Wed, Jun-12-2019, 04:23:44 AM   #36
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Default Re: At wits end bleeding coolant

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OP car is a non M car and coolant system needs bleeding.
Why is a non-M car being discussed in M3 forum? Who authorized this?

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'85 528e 164k miles (sold)
'05 M3 6MT coupe

All DIY: VANOS, WPC rod bearings, full SS (SS stepped V1 headers, catted S1, stock S2, SS sport), AFD E85 Proflex kit, Ohlins R&T/Hyperco 375f Swift 672r/GC street tops and camber plates, ST40 355 pfc08, 330 ZHP steering rack, diffsonline 4.1 diff with rem polish, E60 short shifter lever, AKG black diff bushings/subframe bushings, Rogue rtab, Sachs clutch/flywheel, rear main, Beyer driveshaft, valve adjustment, cooling refresh.

Happy to help with VANOS or any other DIY job around NorCal. Have various specialty tools (VANOS, RTAB, engine bar, valve adjustment, tranny jack, ball joint separator, pilot bearing puller, tap&die kit, etc).
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Old Wed, Jun-12-2019, 07:47:51 AM   #37
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Default Re: At wits end bleeding coolant

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Originally Posted by mrgizmo04 View Post
Why is a non-M car being discussed in M3 forum? Who authorized this?

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Old Wed, Jun-12-2019, 12:27:47 PM   #38
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Default Re: At wits end bleeding coolant

Took some pics this morning of the vacuum that is being pulled by the system. There's no way this is normal, right?





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Old Wed, Jun-12-2019, 03:01:09 PM   #39
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Default Re: At wits end bleeding coolant

Photos say don’t show much. If no overheating, no lost coolant, then don’t worry but continue checking coolant weekly.
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Old Thu, Jun-13-2019, 05:11:25 AM   #40
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Default Re: At wits end bleeding coolant

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Originally Posted by stash1 View Post
AND it's a not safe for work thread...

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'85 528e 164k miles (sold)
'05 M3 6MT coupe

All DIY: VANOS, WPC rod bearings, full SS (SS stepped V1 headers, catted S1, stock S2, SS sport), AFD E85 Proflex kit, Ohlins R&T/Hyperco 375f Swift 672r/GC street tops and camber plates, ST40 355 pfc08, 330 ZHP steering rack, diffsonline 4.1 diff with rem polish, E60 short shifter lever, AKG black diff bushings/subframe bushings, Rogue rtab, Sachs clutch/flywheel, rear main, Beyer driveshaft, valve adjustment, cooling refresh.

Happy to help with VANOS or any other DIY job around NorCal. Have various specialty tools (VANOS, RTAB, engine bar, valve adjustment, tranny jack, ball joint separator, pilot bearing puller, tap&die kit, etc).
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Discussing At wits end bleeding coolant in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)