Corroded fuse and relay box
Symptoms
Intermittent electrical faults, accessories not working, strange behaviour.
Cause
Water ingress, corrosion, decades of heat cycling. The fuse box is under the bonnet on the inner wing and exposed to the elements.
Fix
Remove the fuse box cover and inspect.
Clean all fuses and contacts with electrical contact cleaner.
Replace any corroded fuse holders.
Check relays, common failure point.
Consider relocating critical relays to a drier location or fitting a waterproof relay box.
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