Page 1 of 14
00-14
General repair instructions
The maximum possible care, cleanliness and
proper tools are essential to ensure satisfactory
and successful transmission repairs. The usual
basic safety precautions also apply when
carrying out vehicle repairs.
A number of generally applicable instructions for
individual repair operations, which are otherwise
mentioned at various points in the Repair
Manual, are summarized here. They apply to this
Repair Manual.
Special tools and equipment
For a complete list of special tools and
equipment used in this Repair Manual Special
tools catalog
Transmission
After replacing the transmission or rear final
drive, check oil level and top-up if necessary
Page 34
-38
and Page 39
-84
.
Capacities and specifications Page 00
-3 and
Page 00
-9 .
Thoroughly clean all connections and the
surrounding area before disconnecting.
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Page 2 of 14
When installing transmission, make sure dowel
sleeves for aligning the engine and
transmission are correctly seated.
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Page 3 of 14
00-15
O-rings, gaskets, seals
Always replace O-rings, gaskets and seals.
After removing gaskets and seals, always
inspect the contact surfaces on the housing or
shaft for burrs resulting from removal or for
other signs of damage.
Thoroughly clean housing joint surfaces before
assembling.
Before installing radial shaft seals, lightly oil outer edge and fill space
between sealing lip and dust lip (arrow) with oil. The open side of the seals face toward the side containing the oil.When replacing seals, always vary the point at which the sealing lips
make contact (use insertion depth tolerances). Lightly lubricate O-rings before installing, this prevents the rings from
being pinched when inserting. Check oil level after replacing gaskets and seals Page 34
-38
or
Page 39
-84
.
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Page 4 of 14
00-16
Sealants
Thoroughly clean housing joint surfaces before
applying sealing paste.
CAUTION!
Part numbers are listed here for reference
only. Always check with your Parts
department for the latest information.
Apply sealing paste AMV 188 200 03 or AMV
188 001 02 evenly and not too thick. Do not use
sealing paste AMV 188 001 02 on a
transmission with magnesium housing.
Breather holes must remain free of sealing
paste.
Circlips
Always replace
Do not over-stretch circlips.
Circlips must be fully seated in the groove.
Roll pins
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Page 5 of 14
Always replace roll pins. Installed position: slot is longitudinal to line of force (arrow).
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Page 6 of 14
00-17
Nuts, bolts
Always replace self-locking nuts and bolts.
Loosen nuts or bolts, opposite to tightening
sequence.
Tighten and loosen bolts and nuts for securing
covers and housings in a diagonal sequence.
Especially delicate parts, such as clutch
pressure plates, must not be canted. Loosen
and tighten bolts and nuts in stages in a
diagonal sequence.
The tightening torques stated apply to non-oiled
nuts and bolts.
The threads of bolts which are secured by a
locking compound should be cleaned using a
wire brush. Then apply AMV 185 101 A1 when
installing.
CAUTION!
Part numbers are listed here for reference
only. Always check with your Parts
department for the latest information.
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Page 7 of 14
Threaded holes for self-locking bolts or bolts
coated with locking fluid must be cleaned
with tap. Otherwise there is a danger of bolts
shearing when subsequently being removed.
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Page 8 of 14
00-18
WARNING!
Do not re-use any fasteners that are worn or
deformed in normal use.
Some fasteners are designed to be used only
once, and are unreliable and may fail if used
a second time. This includes, but is not
limited to, nuts, bolts, washers, circlips and
cotter pins. Always follow the
recommendations in this manual-replace
these fasteners with new parts where
indicated, and any other time it is deemed
necessary by inspection.
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