Reliability Guide

Common Problems with the
1998–2004 Ford Focus Mk1 (C170)

We've identified 2 known issues that can affect the 1998–2004 Ford Focus Mk1 (C170). 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

All Known Issues

SeriousSuspension & Chassis

The rear multi-link arms are made of thin steel and rust through, a common MOT failure.

Most affected: All models

Estimated cost: £150–£350Affects: 1998–2004

ModerateElectrics & Electronics

The Vehicle Speed Sensor fails, causing the speedometer to drop to zero intermittently.

Most affected: Manual models

Estimated cost: £60–£120Affects: 1998–2004

✓Rust is the ultimate killer; check the wheel arches, bottoms of the doors, sills, and the rear subframe very carefully.
✓Check the instrument cluster; speedometers frequently fail or drop to zero due to a faulty vehicle speed sensor in the gearbox.
✓Listen for knocking from the rear suspension over bumps, which indicates the trailing arm bushes (crucial to the Control Blade setup) have failed.
✓On the 1.6 Zetec engine, ensure the cambelt has been changed and check the spark plug wells for water ingress from leaking washer jets.
✓Verify the central locking works on all doors; the door latch mechanisms frequently fail, refusing to lock or unlock.
✓Test the power steering for leaks or heavy feeling, particularly around the rack ends, which is a common MOT failure.

View MOT history, registration data, and reliability scores for 1998–2004 Ford Focus Mk1 (C170) vehicles.

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