Geely CK Series 2007 Workshop Manual page 293

4 Excessively long brake pedal stroke
[Description]
Visually inspect whether there
is leakage or mechanical fault. Use bleeding
method to check whether there is air in the
system. Use the HCU function of the scan
meter to test whether the normally-closed valve
is leaking.
Visually inspect whether the hydraulic pipe connector is
leaking
Ok
Check the brake disc wear
Ok
Check the brake fluid level switch
Ok
Bleed and check
Ok
Use the scan meter HCU to diagnose and check the nor-
mally-closed valve seal
286
Likely Causes
Brake fluid leakage
Air in the system
Brake disc severely worn
Brake fluid level switch faulty
Abn.
Tighten the pipe connector as
specified
Abn.
Replace the brake disc
Abn.
Replace the brake fluid level
switch
Abn.
Re-bleed the system
Abn.
Replace the HCU