SevereAffected: 2011-201860,000–120,000 miles

Ford Focus Mk3 2.0 TDCi — Suspension Coil Spring Snapping

A very common MOT failure in the UK. Suspension coil springs corrode and snap, usually near the bottom pigtail.

Severity

Severe

DIY Difficulty

Hard

Est. Cost

£150–£300

OBD Codes

None

Component Diagram

Suspension

Typical layout and location for the Suspension assembly.

Reference Illustration

Symptoms

Loud 'twang' or bang when turning the steering wheel at low speeds
Car sits noticeably lower on one side
Grating noise over bumps

Root Cause

The protective coating on the steel spring chips from stone impacts. Salt water corrodes the exposed steel, weakening the spring until it fractures under load.

How To Fix

Visually inspect all four springs for fractures at the very bottom coil.
Always replace coil springs in pairs across an axle to maintain handling balance.
Cost: £150-300 per pair at an independent garage.

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£60–£120
Independent Garage	£150–£300
Main Dealership	£240–£480

Other Faults on This Variant

Powershift Dual Clutch Gearbox Failure

Critical

2011-201550,000–100,000 miles£1800–£2500

The 6-speed Powershift (MPS6/6DCT450) automatic gearbox is notoriously fragile. Internal plastic parts shatter, clogging the transmission filter.

Steering Rack Motor Failure (EPS)

Critical

2011-201850,000–120,000 miles£800–£1200

The Electronic Power Steering rack on the Mk3 Focus suffers from water ingress, causing the motor to short out.

DPF Vaporiser Failure

Moderate

2011-201860,000–110,000 miles£250–£350

Ford uses a 5th injector (vaporiser) in the exhaust to regenerate the DPF. This vaporiser clogs with soot, preventing regeneration.

Disclaimer: Repair cost estimates are indicative and based on community data. Always get a quote from a qualified mechanic before proceeding with any repair.