ABS 'Failure' poll.

My ABS with servo failed;

  • Within 500 miles

    Votes: 0 0.0%
  • Within 1000 miles

    Votes: 0 0.0%
  • Within 2500 miles

    Votes: 1 2.1%
  • Within 5000 miles

    Votes: 1 2.1%
  • Within 10000 miles

    Votes: 1 2.1%
  • Within 20000 miles

    Votes: 0 0.0%
  • Failed after 20000 miles

    Votes: 0 0.0%
  • I have ABS with a servo and mine hasn't failed.

    Votes: 44 93.6%

  • Total voters
    47

Fanum

Toubab
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I'm after actually getting some info, but this will need some cooperation please.

There's a theory that the 'failures' tend to happen early on in a bike's life......and if it doesn't happen within a shortish time, it's not going to happen at all.

So, if YOU have had an ABS with Servo failure, please vote above......but only if YOU had it, not your mate or some bloke you read about over on Advrider or heard about from the wife of your uncle's next door neighbour.

It's possible we can get this poll duplicated on other R series forums as well, so if you happen to see it again, please only vote in one of the polls or we'll skew the results..

Thanks for your help
Bill
 
I've had a quick rethink, and added the last option 'has not failed'.

This is so we can get some sort of percentage, even though it is a 'kitekat ' result ('out of those who responded') so it will probably get a higher figure of failures per hundred than if everyone voted.
 
I bought my gs1150 ABS 2003, fron SPC. In hindsight, there was a fault with the bike when I got it from them. If the front brake lever was gently squeezed and gently released , the servo pump would still run. Not enough to actually apply the brakes. This only caused me concern when I realised that the brake light was staying on. I took the bike to SPC, who changed the master cylinder as the piston was "sticky".
The replacement was also faulty & had to be replaced. This still did not cure the problem, so they apparently changed the servo.
Within 8 weeks, the new pump packed up. I started the bike as usual, all ABS light s functioned correctly. Pulled away, braked for the junction, which luckily is only about 60 feet away. No servo assistance, when I stopped, the ABS warning lights came on. I thought I must have started the engine too soon, so I wated several seconds, started the engine. Exactly the same, bike stops, THEN the ABS WARNING LIGHTS CAME ON. SPC collected the bike and fitted ANOTHER servo. Since been OK, BUT I now have no illussions about BMW being a quality motorcycle. I have contacted BMW at Bracknell, their customer service guy phoned me, basically waffled.
 
Thanks Eliminator.

If that was you that just voted, wouldn't it have been better in a lower mileage category from what you say???

:)
 
At 3000 miles

My brake failure came at 3000 miles. As I've reported elsewhere, the cause was a loose ground wire at the battery, thanks to the technician who put the bike together without installing the lock washers on the battery terminals. No power-- no brakes.
 
Fanum, Wouldn't it have been better to have the last option saying that it hasn't failed within say 5000 miles or some other figure?

Mine hasn't failed yet, I have done about 2000miles so should I vote for no failure or wait until Ive done more miles before voting?

Ian
 
Erm no, because it's spurious anyway....if it hasn't failed so far, there's no point in knowing how many miles it's done.....I'm after how many miles failures occur at on average rather than how many miles people have gone without failures.

I'm trying to establish the accuracy of the theory that if it hasn't broken in the first x miles, it's unlikely to break ;)

Cheers

Bill
 
Fanum,
Yes you are right, I bought the bike with 996 miles on the clock. So if you want to, you can amend it.
 
Fanum,

I don't think you understand the point I was trying to make. If you are trying to see any pattern between milage and failure then you should only vote on failures. The reason is because once you have voted you cannot change the vote.

Assume I vote now for no failure having done 2000 miles, then after 2001 miles my ABS fails! I cannot change the vote. If this happens to many people then your statistics will be very wrong!

Ian
 
So, as I've done 4,000 miles judging by the results, my odds are pretty good - only 1 in 25 chance of failure now, down from 1 in 12!!

Whoopee-do!
 
Assume I vote now for no failure having done 2000 miles, then after 2001 miles my ABS fails! I cannot change the vote. If this happens to many people then your statistics will be very wrong!

In the unlikely event of that happening, just let me know and I can change to poll to reflect the failure, like I just have after Eliminator's comment.

Hope that reassures you.

:)
 
Fanum said:
In the unlikely event of that happening, just let me know and I can change to poll to reflect the failure, like I just have after Eliminator's comment.

Hope that reassures you.

:)

Dear Fanum,

I was annoying a lot of riders on nearly every board, but for the sake of the riders and traffic security. It did cause some attention and awareness. I am pleased that this topic finds at least your interest. Well, it's a pity that I am not 'friend' of polls in this matter for several reasons. My english skills are miserably limited, and you may get it wrong, so I only draw on the deduction of these reasons.

I like to offer you a suggestion:

Encourage everybody that suffered from brake failure* to write you about that failure in objective in detail. That includes full name and adress and nationality, and mayby the telephone number of the affected riders, that includes the ID of the bike and the condition of the bike (confirmation of periodic maintenence by BMW dealers).

I know a administrator of a German BMW board who made such a list and contacted BMW Germany. He has no response for solution so far. But – this is of course an answer. You might understand what I mean.

Dr.

* brake failure in my personal view:

(1) lift off protection engages for 'no good reason' and was threatening the rider (nearly caused an accident) or was substantial irretating the riders confidence while riding
(2) servo failure due to one or more causes, for example

1. A loose electrical connection
2. A failed hydraulic pump
3. A computer fault
4. A damaged wheel speed sensor
5. A damaged relais
6. A problem with the brake light switch
 
2 Bikes, 35 thousand miles

So I had a brand new 03 regular GS for 14k before right off and tht never failed within 6 months, the second bike 22k miles over one year same brakes, no failure. (Even with off road, fording etc etc)

Only challenge I had was brake lever catching on hand protector and the rear light needing replacing, but never complete failure, even with these problem, not a servo but stopping power once sweezed hard. This is the self test challenge, where the test fails to active the Servos.

(Both brakes, Evo II model linked ABS switchable)

HTH, Nick.

I'll let you know on the new bike, once I can get it, give me 6 weeks. I am picking servo power Evo II brakes again with ABS as I love the stopping power, saved me a few times in LOndon traffic.

Cheers, Nick
 
I dropped my 1200GS in a river and flooded the engine. After draining the water and flushing the engine the following ABS problem cropped up: (everything occurred in a single day – distances approximated)

Turn key – diagnostic runs but no telltale whine of the servo.
Diagnostic complete, no errors reported – Start motor
Ride bike – residual braking only (No servo assist) – still no error reported
Ride bike 10miles – ABS reengages (presumably after drying out) – no error display
Ride bike 20miles – ABS fail – ABS failure warning light activates
Ride bike 25miles – ABS reengages – ABS failure warning light remain on
ABS engages and fails intermittedly with accompanying deactivation and activation of ABS warning light for the duration of the test ride

The problem was obviously due to moisture/water and the situation has now returned to normal. Just thought I’d share that with you…
 
3,300 miles so far and no problems so far.:)
 
Well bugger me backwards.

After 18.5k miles, I've suffered the brake failures increasingly reported here.

Thursday am, fully packed and raring to go to Lands End, I hopped on the bike, started her up exactly as normal and the 'brake failure light' was pinging away like mad, as well as the 'hazard' light below it being on solidly.

The latter had been on for a week or two, I'd put it down to a Touratech LED brake light thingy I put on recently, but ther flashing light was new.

I turned off, counted to ten (just for a laught) and tried it again, consciously checking i wasn't anywhere near a brake just to make sure, but it stayed on and flashing.

Off I hopped, checked the rear bulb (though those symptoms aren't the smae...you still check it right?) and it was fine, but I changed the bulb anyway as I always carry a spare now.

No change- but I did notice i had robocop whine from the servo when trying the front lever, but nothing from the rear.

Up to Prestige, and they kindly changed the foot pedal switch after plugging it into the diagnostics....and after a couple of false starts where the light stayed on, it went off and I set off to Cornwall.

150 miles later, at afuel stop, the damn light came on again, so checked the bulb again, called Prestige who couldn't suggest anything more apart from maybe take it to Ocean Plymouth, an I set off to Cornwall again, gingerly at first.

I tested out what I had left, and it was basically full front action, inc ABS/Servo, but only residual on the rear, with no brake light.

I did the fords ride, came back through the rain (I did slow down to 100 though for some corners on the A30 as I knew my rear wasn't working ;) ) and after a visit to Prestige's computer again tonight, I apparently have a wiring problem between the footpedal switch and the rear bulb, so the system's not setting the rear servo circuit.

I didn't turn up until gone 5, so that was all they could find out in the time- I'll check more tommorow to see if I've fekked up with my autocom instal (though that's a year old so I doubt it) and I'll see if I can track down the break in the circuit before giving it to Prestige again.

One thing I can certainly confirm though is that residual braking is total utter bollocks........those who know me know I'm 6'4" and a heavy bastidge, so I'm able to put a large amount of force through that foot pedal, but I can tell you now that what you get on 'residual braking' isn't worth calling braking......even at full effort, it just felt like dragging the rear a little round a corner.

I'll report back when I have a solution, but for now, I'm just glad that a) it was the rear circuit so i could complete the weekend without undue incident and b) that I wasn't moving when the thing failed

Funnily enough, there wasa nother chap in Prestige at the time thisafternoon who was talking about his brake failure he had in at the time...didn't get a chance to speak to him though.

Gotta add full marks to prestige as usual.....they did a good job of at least trying to sort me out on Thursday.
 
Second Brake Failure

My SECOND brake failure came at 4500 miles. This time they replaced THE ENTIRE WIRING HARNESS, a $900 part. Seems OK for the moment.
 
Ooops....I forgot to close the poll and posted the answer to what happened to mine here...'twas in another thread....

Mine was a pierced wire in the fuse/relay box, caused by a screw tip from the lid screws.

Solved easily but still worrying that a minor thing like that could cause the rear servo to not work.
 


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