34.18
Removing and installing ABS relay
and relay base
Removing ABS relay
e Caution:
Switch off ignition, disconnect and insulate the
ground (earth) strap.
•
Remove cover (1) from ABS control unit, press in
the lock with a screwdriver and pull the cover up.
•
Scrap the old cover (1).
•
Detach lines (2) and discard nuts.
e Caution:
Make sure the cable is not at an angle, or its insula-
tion may be damaged.
•
Pull off 2-pin plug (3).
•
Take out relay base (4).
•
Slacken off screws on relay base by app. 2 turns
with Torx T20.
•
Pull the relay off upwards.
Installing the ABS relay
•
Insert the ABS relay with the FAG inscription fac-
ing the detent hook.
•
Tighten the screws at the relay base.
•
Push the relay base into the relay housing, at the
same time pressing both engine cables into the
left cable entries on the relay housing (red at bot-
tom, black at top).
•
Attach black engine cable to left threaded pin
(M5) with crimp at back.
e Caution:
Make sure the cable is not at an angle, or its insula-
tion may be damaged.
•
Reconnect the 2-pin plug in the correct position,
pushing the two halves fully together, and press
the two wires into the center (smaller) cable en-
tries.
•
Push the two plugs for the connecting cable/wir-
ing harness onto the threaded pins with the
crimp at the front.
•
Press the two cables into the remaining free ca-
ble entries.
•
Tighten the nuts.
e Caution:
Always use new self-locking nuts.
•
Install a new cover (1).
e Caution:
When sliding the cover on, make sure that all cables
are correctly located in their cable entries. Scrap
the old cover.
Removing ABS relay base
e Caution:
Switch off ignition, disconnect and insulate the
ground (earth) strap.
•
Remove cover (1) from ABS control unit, press in
the lock with a screwdriver and pull the cover up.
•
Scrap the old cover (1).
•
Detach lines (2) and discard nuts.
e Caution:
Make sure the cable is not at an angle, or its insula-
tion may be damaged.
•
Pull off 2-pin plug (3).
•
Take out relay base (4).
•
Remove screws at relay base with Torx T20.
•
Remove the ABS relay.
•
Press the contact interlock out of the relay base.
•
Release the plug from the relay side using spe-
cial tool No. 50000-017-507 from the Grote und
Hartmann company.
e Caution:
The contact has a double detent.
When pulling the plug out of the relay base, avoid
applying too much tension to the cable.
If the cable breaks, the complete ABS unit will have
to be exchanged.
C340011
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