BMW R1100 Spezifikationen PDF herunterladen (Seite 22)

After the fluid has been completely replaced and all nipples are tight, check that the front and

rear reservoirs are filled and secure. Slowly pump the brake lever, then pump the foot pedal

until there is a solid feel. Continue pumping the brakes for a few minutes, then recheck the

reservoir level and refill if necessary.

WARNING: You must pump the brakes and be certain the brakes are responding with a solid

feel BEFORE you ride the bike!!!

TROUBLE SHOOTING

AIR IN THE SYSTEM --- The brake system works with brake fluid. You push on the brake

lever and this force is transmitted to the brake piston at the discs and causes the pads to grip

the discs. The more you pull on the brake lever, the more pressure you put on the discs and

the faster you stop. There is fluid in the brake lines that transmit this force; you cannot

compress this liquid fluid. But if there is air in the brake lines, even a little, this will cause

problems because air compresses. If you pull on a brake lever and there is air in the brake line,

the air will compress and less force will be transmitted to the brake pads.

If you feel air in the brake lines (spongy brakes), you MUST bleed the brakes until all of the air

is expelled!!! If air is allowed to remain in the line, it will compress when the brakes are

actuated and will not give you firm and steady pressure on the pistons and pads. This will

result in uneven and dangerous braking. Soft or spongy brakes feel as though they are not

working because they are not working. The best procedure is to work so that no air enters the

system. If it does get into the system, you must expel all air from the system.

AIR IN REAR BRAKE SYSTEM

If you get air in the brake system, especially the rear brake system, you will want to start the

corrective process by bleeding from the ABS nipple under the tank. Do this because air

bubbles, which rise, may be trapped in the higher ABS area. Then continue with either Method

One or Method Two. See: TWO OPTIONS.

UNRESPONSIVE BRAKES

If you still have an unresponsive brake system after bleeding the brakes and after following

the procedures recommended here, you may have water in the system or an ABS problem.

Do not ride the bike! Seek professional help.

TWO OPTIONS

The ABS system has a bleeding nipple under the gas tank. You do NOT have to bleed from

this nipple. Old brake fluid will be totally flushed when bleeding from both front and rear

caliper nipples. Bleeding from under the tank will neither hurt nor help your brake system.

The nipple at the ABS unit under the tank may be bleed before starting with the front nipples at

the calipers. Some shops bleed at the ABS under the tank, some do not. Under tank bleeding

is recommended by the BMW manual. However, you should bleed from under the tank if your

bike experiences problems outlined in the paragraphs: " AIR IN REAR BRAKE SYSTEM" or

"UNRESPONSIVE BRAKES'

Brake pads may be retracted (pushed in) while bleeding the brakes. A minute amount of brake

fluid will be forced into the system with this maneuver. There are contrary opinions about

whether this procedure is beneficial. Note: The pads may be pulled in by suction when Method

One is used in bleeding the brakes. Retracting the brake pads is part of the bleeding

procedure recommended in the BMW manual.

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