BMW K bikes (Bricks)

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1Back to top Go down   ABS Question Empty ABS Question on Tue Jun 23, 2015 6:30 am

mike d

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On the K100 using ABS1 are the two wheel sensors independent?

i.e. If the rear sensor was removed, would the front ABS still be functional?

Is this the same for ABS2.

Mike

    

2Back to top Go down   ABS Question Empty Re: ABS Question on Tue Jun 23, 2015 7:19 am

RicK G

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Both the sensors need to be functional because it is primarialy a comparison of wheel speed that determines the ABS function.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   ABS Question Empty Re: ABS Question on Tue Jun 23, 2015 7:21 am

Rickmeister

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I guess that you would have a permanent alarm on the instrument cluster. Send an email to Kosi(?), the bloke in Japan who fixes them. He would know.


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Assumption is the root of all stuff-ups!
    

4Back to top Go down   ABS Question Empty Re: ABS Question on Tue Jun 23, 2015 2:21 pm

mike d

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Thanks for the responses.

Wouldn't the fact that you have individual fault codes for the front and rear sensors mean that only the faulty one would not have ABS functionality?

The iABS system as fitted to the R1150 actually has a fault code 'At least one brake circuit without ABS', as well as one each for the sensors. Chalk and cheese by comparison I know.........

Mike

    

5Back to top Go down   ABS Question Empty Re: ABS Question on Tue Jun 23, 2015 11:53 pm

RicK G

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If a fault develops then the ABS stops working. If the ABS is to work it must have signals from each wheel sensor for comparison otherwise it cant tell if one wheel has locked or is skiding. The brakes will still work but without the ABS function.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

6Back to top Go down   ABS Question Empty Re: ABS Question on Wed Jun 24, 2015 4:44 am

mike d

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Cheers Rick.

This was a question asked of me by another member of our club, so will get back to him.

Mike

    

7Back to top Go down   ABS Question Empty Re: ABS Question on Wed Jun 24, 2015 11:09 am

Two Wheels Better

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One exception to the brakes working in spite of non-functioning ABS is the servo-asissted R1150 and K1200 series iABS. No ABS, no brakey. It feels like someone greased the pads. Pucker string tightening, to say the least when in traffic and expecting brakes!


__________________________________________________

“Some people see things that are and ask, ‘Why?’. Some people dream of things that never were and ask, ‘Why not?’. Some people have to go to work...

~George Carlin

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

8Back to top Go down   ABS Question Empty Re: ABS Question on Wed Jun 24, 2015 4:51 pm

mike d

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I know that first hand! Not good.

I raised a vehicle defect report with VOSA who handle recalls etc in the UK. The motorcycle guy I spoke to explained how it had been demonstrated by a BMW test rider how a bike with the ABS switched off could be brought to a halt in a slightly longer distance than full servo brakes. How I laughed!

When I started to question his experience it turned out he didn't even have a bike licence!

I eventually got a deal with my local Motorrad dealer and they fitted a new module, all still o.k. after 5 years.


Mike

    

9Back to top Go down   ABS Question Empty Re: ABS Question on Wed Jun 24, 2015 7:41 pm

indian036

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@Two Wheels Better wrote:One exception to the brakes working in spite of non-functioning ABS is the servo-asissted R1150 and K1200 series iABS. No ABS, no brakey. It feels like someone greased the pads. Pucker string tightening, to say the least when in traffic and expecting brakes!
affraid


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Newest toy, slightly non-original
    

10Back to top Go down   ABS Question Empty Re: ABS Question on Wed Jun 24, 2015 7:47 pm

Two Wheels Better

Two Wheels Better
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@mike d wrote:I know that first hand! Not good.

I raised a vehicle defect report with VOSA who handle recalls etc in the UK. The motorcycle guy I spoke to explained how it had been demonstrated by a BMW test rider how a bike with the ABS switched off could be brought to a halt in a slightly longer distance than full servo brakes. How I laughed!

When I started to question his experience it turned out he didn't even have a bike licence!

I eventually got a deal with my local Motorrad dealer and they fitted a new module, all still o.k. after 5 years.


Mike
Having four piston calipers with 320mm floating brake discs doubled at the front and a two piston fixed disc at the rear WITH integral ABS fully functional, the braking action is nothing short of incredible, except perhaps when in a moment of inattention you grab a bigger handful (or bootful) than required for the riding environment and your nungas go smack into the back end of the tank!...and low speed, tight turn car park manouevres with a slight jab of the rear brake can produce an unwanted result as you potentially topple over like a neophyte rider.
Shocked


__________________________________________________

“Some people see things that are and ask, ‘Why?’. Some people dream of things that never were and ask, ‘Why not?’. Some people have to go to work...

~George Carlin

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

11Back to top Go down   ABS Question Empty Re: ABS Question on Thu Jun 25, 2015 5:02 am

mike d

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.and low speed, tight turn car park manouevres with a slight jab of the rear brake can produce an unwanted result as you potentially topple over like a neophyte rider.

Been there done that as well Embarassed

First time I took it to work, luckily no one else about. Felt a right numpty, as I have been riding BM's since 1978 and covered hundreds of thousands of miles!

Mike

    

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