Nissan Quest E52. Manual - part 262

BRM-14

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CORROSION PROTECTION

REMOVAL AND INSTALLATION

CORROSION PROTECTION

Description

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To provide improved corrosion prevention, the following anti-corrosive measures have been implemented in
NISSAN production plants. When repairing or replacing body panels, it is necessary to use the same anti-cor-
rosive measures.

ANTI-CORROSIVE PRECOATED STEEL (GALVANNEALED STEEL)

To improve repairability and corrosion resistance, a new type of anti-
corrosive precoated steel sheet has been adopted replacing conven-
tional zinc-coated steel sheet.
Galvannealed steel is electroplated and heated to form Zinc-iron
alloy, which provides excellent and long term corrosion resistance
with cationic electrodeposition primer.

Nissan Genuine Service Parts are fabricated from galvannealed steel. Therefore, it is recommended that
GENUINE NISSAN PARTS or equivalent be used for panel replacement to maintain the anti-corrosive perfor-
mance built into the vehicle at the factory.

PHOSPHATE COATING TREATMENT AND CATIONIC ELECTRODEPOSITION PRIMER

A phosphate coating treatment and a cationic electrodeposition
primer, which provide excellent corrosion protection, are employed
on all body components.

CAUTION:

Confine paint removal during welding operations to an absolute
minimum.

Nissan Genuine Service Parts are also treated in the same manner. Therefore, it is recommended that GENU-
INE NISSAN PARTS or an equivalent be used for panel replacement to maintain anti-corrosive performance
built into the vehicle at the factory.

Anti-corrosive Wax

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To improve corrosion resistance, anti-corrosive wax is applied inside the body sill and inside other closed sec-
tions. Accordingly, when replacing these parts, be sure to apply anti-corrosive wax to the appropriate areas of
the new parts. Select an excellent anti-corrosive wax which will penetrate after application and has a long shelf
life.

DOOR

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CORROSION PROTECTION

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Undercoating

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The underside of the floor and wheelhouse are undercoated to prevent rust, vibration, noise and stone chip-
ping. Therefore, when such a panel is replaced or repaired, apply undercoating to that part. Use an undercoat-
ing which is rust resistant, soundproof, vibration-proof, shock-resistant, adhesive, and durable.

PRECAUTIONS IN UNDERCOATING

1.

Never apply undercoating to any place unless specified (such as the areas above the muffler and three-
way catalyst that are subjected to heat).

2.

Never undercoat the exhaust pipe or other parts that become hot.

3.

Never undercoat rotating parts.

4.

Apply bitumen wax after applying undercoating.

5.

After putting seal on the vehicle, put undercoating on it.

B.

Nozzle insert hole

Unit: mm (in)

: Anti-corrosive wax coated portions

JSKIA2476GB

BRM-16

< REMOVAL AND INSTALLATION >

CORROSION PROTECTION

Stone Guard Coat

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To prevent damage caused by stones, the lower outer body panel (fender, door, etc.) have an additional layer
of Stone Guard Coating over the ED primer coating. When replacing or repairing these panels, apply Stone
Guard coating to the same portions as before. Use a coating which is rust preventive, durable, shock-resistant
and has a long shelf life.

: Undercoated areas

: Sealed portions

JSKIA2477ZZ

CORROSION PROTECTION

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Body Sealing

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The following figure shows the areas that are sealed at the factory. Sealant that is applied to these areas
should be smooth and free from cuts or gaps. Care should be taken not to apply an excess amount of sealant
and not to allow other unaffected parts to come into contact with the sealant.

: Stone guard coated portions

JSKIA2478ZZ