LR3/Disco 3
Corrosion Protection
General
The corrosion protection provided in production must be carefully maintained and/or reproduced during and after body
repair work. It is only then that the long-term warranty against penetrative rust damage can be assured.
Only Land Rover original bodywork components and Land Rover approved repair materials (sealer, paint etc.), are to be
used for bodywork repairs.
Land Rover original parts
All Land Rover bodywork components have a cathodic base coating. Individual bodywork components are zinc plated on
one or both sides (in different areas depending on vehicle model).
Together with elastic paint coating, this guarantees an optimum, highly resistant protection against corrosion caused by
the impact of small objects such as gravel.
NOTE :
If hairline cracks at "bodywork connection areas" appear after reshaping work (e.g. at door hinges), it must be ensured
that the corrosion protection provided in production is recreated. The complete paint covering must be re-created if
necessary. The same applies to reshaping work on heavily profiled bodywork components (e.g. floor pan). Renew or
touch-up the paint coating, sealing beads and underbody protection as necessary.
After repair, any interior surfaces which are no longer visible or accessible must be primed before cavity wax is applied.
To be certain of an even coating on inner surfaces, careful application of spray (twice, with drying time in-between) must
be carried out throughout the whole cavity.
If bodywork panels are strongly heated during repair work, this will invariably result in damage to or even destruction of
the applied corrosion protection material. The effectiveness of the cavity protection material is reduced if heating occurs.
Reworking of the affected areas is therefore vital.
Welded areas should be made good before corrosion protection is applied.
The corrosion protection measures to be taken when bodywork components are renewed are described on the following
pages.
Corrosion protection of new components
All new components must be inspected for transport or storage damage such as scratches or dents. The following
operations may be necessary, depending on the extent of damage:
Undamaged new component
Published : Oct 13, 2005
If possible, the individual protective layers (zinc, cathodic base coat) on Land Rover bodywork components must
not be damaged or destroyed by sanding or other mechanical operations.
