Distinguishing Features Of The Abs Systems - Skoda Octavia II 2004 Workshop Manual

♦ The valve coils in the ABS control unit - J104- cannot be re‐
placed.
♦ The pressure sensor must not be modified or damaged.
♦ The pressure sensor cannot be replaced.
♦ The sensor housing must not be subjected to mechanical load.
♦ No measurements must be carried out at the contact points of
the ABS control unit - J104- .
♦ No measurements must be carried out at the contact points of
the ABS hydraulic unit - N55- .
♦ The valve domes of the ABS hydraulic unit - N55- must not be
damaged or bent.
♦ The contacts on the ABS control unit - J104- and the ABS hy‐
draulic unit - N55- cannot be replaced.
♦ Do not use contact spray.
♦ No contamination or foreign object may located between ABS
control unit - J104- and ABS hydraulic unit - N55- .
♦ Ensure that no brake fluid enters connectors.
♦ Observe the relevant instructions when handling brake fluid.
♦ After completing work which involved opening the brake sys‐
tem, bleed the brake system with the brake filling and bleeding
device , e. g. -VAS 5234- ,
♦ During the subsequent road test, ensure that at least one con‐
trolled brake application is performed (pulsing must be felt on
the brake pedal).
1.2 Distinguishing features of the ABS sys‐
tems
♦ ABS - wheel control system when braking. It prevents the
wheels from locking when braking.
♦ ESP (ESC) - electronic stability program. It prevents the vehi‐
cle from skidding by means of a targeted intervention in the
braking and steering process.
♦ EDL - electronic differential lock. It enables the driving off on
a road with different friction coefficients under the right and left
drive wheel by braking of the wheel which is slipping.
♦ TCS - traction control system. It prevents the driving wheels
from slipping when accelerating by throttling the engine power
output.
♦ MBA - mechanical brake assistance.
♦ HBA - hydraulic brake assistance.
♦ EDC - Engine Drag Torque Control. It prevents the driving
wheels from locking, if suddenly the accelerator pedal is re‐
leased or when braking with a gear engaged.
♦ EBD - electronic brake pressure distribution.
♦ DSR - automatic steering recommendation. Recommends to
the driver a change in the steering position, which under cer‐
tain conditions can increase the efficiency of the ESP (ESC).
♦ HHC - Hill Hold Control. Makes it easy to set off on hills without
the vehicle rolling back and also without operating the parking
brake.
♦ RKA (TPM) - Tyre inspection display
⇒ page 168 .
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Octavia II 2004 ➤ , Octavia II 2010 ➤
Brake systems - Edition 11.2017
1. Antilock braking system (ABS)
13