BYPASSING ABS PUMP - BMW Luxury Touring Community
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post #1 of 11 Old Apr 26th, 2017, 7:48 am Thread Starter
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BYPASSING ABS PUMP

Rear ABS pump (I didn't know there were two) has failed on my 2005 LT, into which I have far to much money already. Have read something about bypassing the pump(s) when they fail, resulting in no ABS and no servo assist.

Anybody know anything about this? Has done it? Braking effect left? Safety? Cost of doing this?
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post #2 of 11 Old Apr 26th, 2017, 11:25 am
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Re: BYPASSING ABS PUMP

Here is some reading for you:
http://www.i-bmw.com/search.php?searchid=1139348
In general yes people by pass or remove it. But I believe the electronics are needed to operate systems like the speedometer.
Here is a company that may repair it or supply an interesting by pass plate.
https://rhelectronics.de/

Beech
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post #3 of 11 Old Apr 26th, 2017, 7:57 pm
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Re: BYPASSING ABS PUMP

Did mine about two years ago. Cost of parts was $120, 44" SS braided hose, 3 couplers from Auto Zone, 4 plugs (contact Saddleman for these) and new crush washers, fluid.

Stitches, bandages and blood transfusion was extra. Just kiddin!

You need to un-dress the beast though, while you can do it remove the relay so the dash lights don't flash, it is the green one under the tank. Remove the one dash light which illuminates with ! inside triangle (or use a piece of electrical tape) and you're home free.

Brake power is same as before but zero assist. The pump still spins up and whizz'es but it is isolated from the system.

Just do not "grab" a handful of brake because it will lock up.

Hope this helps you in making your decision, take your time doing it and you'll be fine.

Regards,
Boots
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post #4 of 11 Old Apr 27th, 2017, 11:37 am
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Re: BYPASSING ABS PUMP

Contact Saddleman. He just plugged his and bypassed with fittings and lines. This way the pump is still in the circuit therefore Speedo and everything else running thru pump still work.

2004 K1200LT. Big Mama
1999 Suzuki Intruder VL1500LC. Betty Lou.
I'm a 4 percenter.
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post #5 of 11 Old Apr 28th, 2017, 10:44 am
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Re: BYPASSING ABS PUMP

Listen to what "Boots" and Sattleman tell you. Both of them are the "man".
Leon
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post #6 of 11 Old May 12th, 2017, 4:29 am Thread Starter
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Re: BYPASSING ABS PUMP

Thanks to all who replied. I'm having the dealer do it. I've already had one skirmish with the Tupperware, replacing the windshield actuator and had a dozen screws left over and that, like my one-and-only colostomy, will do for my lifetime. The shop manager is on notice to replace all the missing screws he finds.
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post #7 of 11 Old May 12th, 2017, 10:12 am
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Re: BYPASSING ABS PUMP

Quote:
Originally Posted by Urbanhermit View Post
Thanks to all who replied. I'm having the dealer do it. I've already had one skirmish with the Tupperware, replacing the windshield actuator and had a dozen screws left over and that, like my one-and-only colostomy, will do for my lifetime. The shop manager is on notice to replace all the missing screws he finds.
I can't believe a dealer would offer that.
How big was the waiver you had to sign?

Doug B.
2000 LT purchased July 2013
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post #8 of 11 Old May 12th, 2017, 10:17 am
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Re: BYPASSING ABS PUMP

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Originally Posted by dvgb131 View Post
I can't believe a dealer would offer that.
How big was the waiver you had to sign?
Ditto. Same here. Wonder if there is a waiver?

2004 K1200LT. Big Mama
1999 Suzuki Intruder VL1500LC. Betty Lou.
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post #9 of 11 Old May 12th, 2017, 10:57 am Thread Starter
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Re: BYPASSING ABS PUMP

Dealer didn't even question it. Said they'd done one or some before. Y'all have surprised me with y'all's surprise.
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post #10 of 11 Old May 12th, 2017, 2:54 pm
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Re: BYPASSING ABS PUMP

Count me as another one that is shocked a dealer would open him(her)self up to the liability that would create. Makes me wonder if the dealer really knows what the Service Manager is doing.

Life happens...you control your reaction.

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post #11 of 11 Old May 12th, 2017, 2:55 pm
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Re: BYPASSING ABS PUMP

It depends on which ABS you have installed If you have the IABS it is easy but you have to keep the electonics attached you can remove the pump and just unscrew the electrics from the top of the pump and tape it up. All the plumbing is easily adapted and made safe. Motorworks in the uk do the two pieces of pipe you need or you can fabricate your own.

Last edited by peterj; May 13th, 2017 at 6:49 am.
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