1600 / 510

1967-1973 / Sedan / Japan

All 1600 / 510 problems All workshop issues

Common Electrical

Basic Wiring Deterioration

Symptoms

Intermittent lights, non-functioning accessories, no-start conditions.

Cause

The 510/1600's electrical system is basic but functional when new. After 55 years, the wiring insulation becomes brittle, connectors corrode, and earth connections develop resistance. Previous owners' modifications (stereos, additional lights, engine swaps) often add poorly executed wiring.

Fix

Inspect the wiring harness, repair damaged sections, clean all connectors and earth points.

A full replacement wiring harness: $400--800.

Cost for targeted repairs: $100--300.

Cost mentioned in fix

$400$100

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Other known issues

Common Electrical

Alternator/Generator Failure

Dim lights, dead battery, charging warning light.

Common Body and Structure

Floor Pan Corrosion

Soft, spongy, or perforated floor pans. Wet carpet after rain. Road noise increases noticeably as the floors thin. In extreme cases, the floor is partially or entirely gone.

Minor Body and Structure

Sill (Rocker Panel) Corrosion

The outer sill skin softens and crumbles. Door alignment changes as the inner sill structure weakens. The car may creak or flex over bumps.

Minor Body and Structure

Inner Guard and Strut Tower Corrosion

The inner front fenders around the MacPherson strut top mounts corrode and thin. In severe cases, the strut tower can deform under load.

Critical Body and Structure

Rear Wheel Arch Corrosion

Bubbling paint, perforation, and structural weakening of the inner and outer rear wheel arches.

Common Body and Structure

Spare Tyre Well Corrosion

The boot floor around the spare tyre well perforates. Water pools in the spare tyre recess.

View all 17 1600 / 510 problems