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– Screw in screws or nuts with a power screwdriver only up to
the contact with the screw head or nut.
– Tighten screws or nuts to the final tightening torque with a
torque wrench.
• Set screws must be cleaned before the screw is unscrewed.
3.4 Contact corrosion
The gearbox housing and the clutch housing are made out of
magnesium alloy.
Bolts and other components that come into direct contact with
the gearbox have a surface with varying finishes in relation to it.
The use of substitute components causes contact corrosion
(screws. nuts. washers ...). The gearbox housing and clutch
housing are damaged.
Generally install parts which are indicated in the ⇒ Electronic
Catalogue of Original Parts.
3.5 Seals and sealing rings
♦ O-rings, always replace the seal rings and seals after disas‐
sembly.
♦ After removing all seals, inspect the contact faces on hous‐
ings and shafts for burrs and damage and remove all which
are found.
♦ Thoroughly clean the housing separation surfaces before
installing the seals.
♦ Sealing rings are also referred to as radial (shaft seals).
♦ Before installing radial shaft seals, wet the outside circum‐
ference and the sealing lip with gear oil and apply sealing
grease -G 052 128 A1- to half the space between the seal‐
ing lips.
♦ The open side of the sealing rings is installed towards the
oil.
♦ To coat the rings before installation, use only the oil for the
given type of gearbox ⇒ Electronic Catalogue of Original
Parts. A different lubricant can cause functional faults.
♦ Following installation, change gear oil ⇒ a7.1 nd filling gear‐
box oil”, page 230 .
3.6 Screws, nuts
• Loosen the screws in reverse order to the installation order.
• Slacken and tighten screws or fixing nuts of covers and
housings without tightening sequence diagonally across in
stages.
Octavia III 2013 ➤, Octavia III 2014 ➤, Rapid NH 2013 ➤, Rapid NH 2014 ➤
Gearbox 0CW-DSG - Edition 07.2022
8 Rep. gr.00 - Technical data