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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 Tue, Aug-21-2018, 12:36:41 PM   #1
Eduki
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Default SMGII pump motor, possible fix for cheap.

Hi all.

First of all, if this thing was already commented my apologies, i use to follow everything about the forum and didnīt find threads related with this in particular (of course i found a lot of info about SMG motor replacements for brand new ones)

Well, i was watching an interesting (and not easy to read) video about a SMG pump motor repair for cheap, we already know the problems that a worned out motor gives to the SMG pump functionallity.

Mainly the fix is about opening the motor itself, cleaning... nothing new except the brushes core replacement (commutator, others call it slip ring)

Hereīs the video (turn off the volume for healthy reasons):


Well, at 02:48 we can see the hard part to find. Finding an used Volvo ABS motor of course is possible as the video uploader suggested, but who knows how would be the old commutator inside. Itīs just a matter of luck.

So i decided to try my own search for just the part, knowing that the Volvo (s60/ s70) motor was manufactured by ATE with the part number P08619974) and i think that i found something that could fit.

BUT, i have no disassembled parts of the SMG pump motor itself to check the commutator dimmensions and compare.

Any of you have it dissasembled to check the: Shaft Diameter/Outside Diameter, and height of the commutator?

The only thing at this moment that i can confirm 100% is about the teeth number (12 if iīm not wrong)
The rest of the job would be just about soldering, i think that for people having already this issue itīs not going to hurt to try, finding the right commutator would change the repair costs dramatically.

Thanks in advance
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Old Tue, Aug-21-2018, 02:34:14 PM   #2
zivagolee
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Default Re: SMGII pump motor, possible fix for cheap.

Yes, it's a common job now. There are probably a few DIYs but here is one:

http://www.m3forum.net/m3forum/showthread.php?t=550529

https://burkhart-engineering.com/54160en

I have Burkhart motor in mine. If you are going to do this, I recommend relocating the pump too.

http://www.m3forum.net/m3forum/showthread.php?t=590914
http://www.m3forum.net/m3forum/showthread.php?t=568580
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Old Tue, Aug-21-2018, 02:44:20 PM   #3
Texaz3
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Default Re: SMGII pump motor, possible fix for cheap.

New motors are relatively inexpensive, and there are even few after market solutions for less than OEM. Hydraulic units themselves rarely fail. Mostly the motors that crap out. I'm glad we finally have the solution for us SMG fans.
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Old Tue, Jun-11-2019, 06:57:15 AM   #4
Mel279
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Default Re: SMGII pump motor, possible fix for cheap.

Im rebuilding my spare smg pump with a viton seals since my other pump in the car keep loosing pressure and goes to neutral. The pump had almost new accumulator & burkhart motor, no sign of it leaking and most probably internal leak due to the seals worn out.
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Discussing SMGII pump motor, possible fix for cheap. 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)