BMW 3 (E46). Manual - part 172
connect BMW Diagnosis and
Information System (DIS) to 20 pin
Data Link Connector (DLC) under
hood (1999 models), or 16 pin
DLC/OBD II connector under dash
(2000- 2001 models). Call up
service function Bleeding
ABS/ASC or service function
Bleeding ABS/DSC, depending on
which system the vehicle is
equipped with.
-
Connect pressure bleeding device
to brake fluid expansion tank and
pressurize.
CAUTION!
Do not exceed a pressure of 2 bar (29
psi) when pressure bleeding the
brake system. Excessive pressure
will damage the brake fluid reservoir.
Attach bleed hose and fluid receptacle
to bleeder screw (arrow). Open
bleeder screw. Allow DIS bleeding
procedure to cycle hydraulic control
module valves with bleed screw open.
-
After bleeding procedure is
completed, slowly depress brake
pedal (12 times on ABS/ASC
vehicles, 5 times on ABS/DSC
vehicles) with bleeder screw open,
holding pedal down on the last
pump. When escaping fluid is free
of air bubbles, close bleeder
screw and release brake pedal.
CAUTION!
Bleeder hose must always remain
submersed in clean brake fluid
whenever the bleeder valve is open.
-
Refill brake fluid reservoir and
proceed to rear left wheel.