1997 BMW R 1100 RT Logo

Related Topics:

Anonymous Posted on Oct 11, 2011

Have a 99 R1100RT replaced rear brake pads now I cant get the system to pump up. Bled the rear brakes any sugustions why I have no pressure?

3 Related Answers

Anonymous

  • 2 Answers
  • Posted on Dec 31, 2009

SOURCE: how do I change brake pads on a bmw r1100rt year

I asume form the question you are handy but maybe not experirenced in this repare project If you have never done this before I would take it to a tech days training meeting. serch the web for rallys and other groups. It is fairly easy to do this job as like all disc brakes systems, but the setails are important and this is nothing to mess with unless you are very confident.

Ad

Anonymous

  • 113 Answers
  • Posted on Oct 08, 2010

SOURCE: I have a 99 R1100RT and the ABS lights keep

Check for a weak battery. The older ABS systems on BMW motorcycles are very sensitive to battery voltage on startup. Example: If battery is weak, engine is slow to crank over and ABS unit will see low voltage. Run bike for 10-20 minutes (riding, not idling!!) and then turn off ignition (key) Restart bike and if ABS lights go out after pull away test, battery is weak/defective of needs to be charged.

ABS sensor air gap will not have any effect, and nor will quality of brake fluid.

Also, when bleeding brakes, BMW says not to use vacuum systems to pull fluid through system. Apparently, it can damage ABS modulator located under gas tank on your bike.

asfuturetech

Amrit sahni

  • 283 Answers
  • Posted on Jun 24, 2015

SOURCE: I have a 99 R1100RT and the ABS lights keep

ABS - Anti-Lock Braking System And EBD -Electronic Brake-force Distribution In Plain English Posted by: Rohit Khurana March 1, 2010 in Automobile Technology
AdvertisementCarBlogIndia Technology Articles , today I will talk of one of the most talked about safety feature called the ABS And EBD. Again I will try to keep the language simple and human understandable (which non-engineers can also make some sense of), pun intended.
What Is ABS ? Anti-Lock braking System system or ABS is a safety system which prevents the wheels on a moving vehicle from locking up(or cease while rotating) while braking. ABS offers improved vehicle control over dry and especially slippery surfaces by reducing the braking distance but it can also increase the braking distance in case of loose surfaces like snow, gravel etc. Ever since the invention of ABS, it has been evolving and the recent systems not only prevent wheel locking but also electronically control the front-to-rear brake bias, which we know as Electronic brake force system, Traction control system, Emergency brake assist or Electronic stability control.
Working Of ABS
Advertisement
When brakes are applied under heavy loads, the braking pressure becomes high resulting in heavy braking or in other words locking up of wheels. The ABS overcomes this by monitoring the wheel speed and releases pressure on each wheel brake lines in the form of rapid pulses switching between different brake lines. which prevent locking-up.

Preventing lock-up under heavy braking helps the driver in maintaining control over the vehicle. In modern ABS an individual brake line is provided for each of the four wheel enabling different braking pressures for different road surfaces of the wheels.
What Is EBD ? Electronic brake- force distribution system also called as Electronic brake-force limitation is an automobile brake technology that automatically varies the amount of force applied to each of a vehicle's brakes, based on road conditions, speed, loading, etc.
EBD system is always coupled with anti-lock brake-force system. The most important function of EBD is to maintain vehicular control with variation in braking pressure applied to each wheel in order to maximize stopping power. Generally most of the weight of all vehicles is carried by the front end so the EBD ensures less braking pressure at the rear end to avoid skidding. But in some EBD's the distribution of braking pressure at the rear end is more initially when the brakes are applied before the effects of weight transfer comes into play.
Working of EBD system An EBD is a subsystem of the abs and its function is to control the effective adhesion utilization by the rear wheels. this definition has been given by SAE in its technical paper no. #920646.
Advertisement
The Antilock brake force system releases pressure in different brake lines at the time of heavy braking to prevent locking-up. The action comes in the form of releasing pressure from the braking circuit when it detects extreme and rapid deceleration in any of the four wheels in order to make sure that the driver maintains control over the steering during panic or emergency braking. For example if the wheels of a vehicle are on snow as well as asphalt then in case of emergency braking the ABS will monitor the speeds and eventually the EBD system will release less pressure for wheels on snow and more pressure for wheels on asphalt to prevent wheel lock-up

99-r1100rt-abs-lights-keep-jserdy1edku5qfscwskpevsm-4-0.jpg

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

I have a 23 t bucket and i cant get a brake pedal.when i bought it had very little brake so i replaced rear shoes and cylinders,front pads and calipers,all new lines and the master cylinder

Once you have bled the air from the brake lines,clamp off the front brake hoses carefully.Does the pedal feel better now?
Then the pad /caliper fit is allowing too much play.Is the pedal the same?Then clamp the rear hose and try the pedal.Is it fine with the rear hose clamped?If so we now know the problem is at the rear brakes.One common low pedal rear brake cause is brake shoes that do not fit the drums.Remove the drums and look at the shoes,are they showing contact wear fully or just in the middle of the shoe?Remove a shoe and place it in the drum.Can you rock the shoe against the drum surface?Once drums have been resurfaced,the shoes will not fit fully against the drum allowing the shoe the flex when applying pressure to it and this can easily create a low soft brake pedal. Of course rear brake adjustment must be correct once brake shoe contact is correct.To correct brake shoe contact,have your shoes re arc-ed to fit resurfaced drums or install new drums.Don't overlook brake master cyl /brake pedal push rod adjustment too.
0helpful
2answers

Why is the brake light on after putting front brakes on

Do you mean the brake lights on the rear of the vehicle or the brake light on the dash?
0helpful
1answer

2001 Silverado 2500 HD Why Rear brakes don't work after I installed new hydro-boost power booster, master cylinder, calipers, and pads. I bled master cylinder before installing, and brakes beginn

Hello Patricia,

Have you checked the master brake cylinder reservoir for brake fluid loss?

I don't suspect the master cylinder as you have replaced it... but am more suspect of a leaking brake line or fitting which should have
been discovered when you had the system bled.

The only time I ever had a rear brake problem with a 2500 series Chevrolet was due to seized rear brake caliper guide pins...as your calipers are also new that is not your problem.

If your brake pedal feels spongy and travels to the floor board you have air in the system, a brake fluid leak or a failure in the power steering system, such as a broken hose, broken power steering pump drive belt, or failed pump, would result in a loss of pressure to both the hydro-boost and steering.

Find more information here:

. Hydro Boost Power Assist Systems Operation Diagnosis and Repair
0helpful
1answer

My kid bought a 99 Grand Am, the brakes were spongy and had to be pumped. The car now has new front calipers, pads, and new master cylinder. We bench bled the master cylinder and bled out the brakes. The...

If the car has Drum style rear brakes, make sure the adjustment is good. It takes a lot of fluid to activate them.
PS. I assume you did bleed the rears.
0helpful
1answer

Next to no Brakes

No, but could be pad knock back which can be caused by run out of the rotors. This can happen if your pads have worn down too far in the past. I'd advise you to have the rotors ground (on the car) and new pads fitted. The fronts are critical but have the rears checked for run out too. Sometimes new seals in the calipers can help hold the pads against the rotors.This will improve the loss of pedal condition.
1helpful
1answer

Brakes to the floor(almost) 99 blazer

bleed the brake again. if the pedal goes to the floor with little resistance, then the master cylinder is your problem.
the shim is to depress the noise when you applied the brake. you can skip that, if the brake works without it.
0helpful
1answer

Brakes to the floor 99 blazer

probably need to be bled again on that side
1helpful
1answer

Brake pedal losses pressure 1 to 2 pumps back to full pressure.

you still air in system or a bad master cylinder or brake booster.
Not finding what you are looking for?

523 views

Ask a Question

Usually answered in minutes!

Top BMW Experts

Arnie Burke
Arnie Burke

Level 3 Expert

7339 Answers

Sean Wright
Sean Wright

Level 3 Expert

2045 Answers

xxxxxx xxx

Level 3 Expert

5117 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...