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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, Jul-15-2019, 09:11:15 PM   #1
sapote
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Default Washer pump short life and potential solution

Our cars and the normal E46 use the same washer pump for front windshield, and it is a bad design product with short life. I heard Toyota owners don’t need to replace the pump as often – last longer than the car mostly.

Over the weekend I installed a Toyota Denso pump on my 323i, and I will study if the M3 tank can use the same pump. Here’s the link:
https://forum.e46fanatics.com/showthread.php?t=1258691
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Old Tue, Jul-16-2019, 03:30:30 AM   #2
Texaz3
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Default Re: Washer pump short life and potential solution

Yeah, okay.
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Old Tue, Jul-16-2019, 04:41:48 AM   #3
icecream
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Default Re: Washer pump short life and potential solution

Can I ask a legitimate serious question? What car did you own before this?
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Old Tue, Jul-16-2019, 06:24:52 AM   #4
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Default Re: Washer pump short life and potential solution

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Can I ask a legitimate serious question? What car did you own before this?


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Old Tue, Jul-16-2019, 07:21:40 AM   #5
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Default Re: Washer pump short life and potential solution

Most windshield washer pumps are similar.

You can also use VW washer pumps, the use the same bottom inlet design and connector.

Just make sure you get the mono pump for a coupe or convertible.

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Old Tue, Jul-16-2019, 05:23:46 PM   #6
sapote
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Default Re: Washer pump short life and potential solution

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Most windshield washer pumps are similar.
This is correct, that they all have a motor, rubber seals, and an impeller, but the similarity end here. BMW pump has bad seal design allowing water to leak into the motor chamber and rusted rotor, then locked up. Toyota pumps don't have this issue. My '67 Porsche original washer pump still works.
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Old Tue, Jul-16-2019, 05:40:27 PM   #7
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Default Re: Washer pump short life and potential solution

I'm on my original pump
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Old Tue, Jul-16-2019, 05:52:06 PM   #8
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Default Re: Washer pump short life and potential solution

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Originally Posted by icecream View Post
Can I ask a legitimate serious question? What car did you own before this?
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Last edited by sapote; Tue, Jul-16-2019 at 05:58:37 PM.
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Old Tue, Jul-16-2019, 05:54:24 PM   #9
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Default Re: Washer pump short life and potential solution

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I'm on my original pump
Mine did fail. And I think the replacement has an internal leak or something since it takes a couple seconds before it builds enough pressure to spray.
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Old Tue, Jul-16-2019, 05:58:02 PM   #10
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Default Re: Washer pump short life and potential solution

Thank god, I can sleep soundly at night now that this has been resolved.
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Discussing Washer pump short life and potential solution 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)