SevereAffected: 2004-201180,000–140,000 miles

Ford Focus Mk2 1.8 TDCi — Injector Failure (Siemens VDO)

The Siemens VDO injectors used on the 1.8 TDCi are highly prone to electrical failure, dropping the car to 3 cylinders.

Severity

Severe

DIY Difficulty

Professional Only

Est. Cost

£250–£400

OBD Codes

P0201P0202P0203P0204

Component Diagram

Injectors

Typical layout and location for the Injectors assembly.

Reference Illustration

Symptoms

Sudden loss of power
Engine runs extremely rough
Coil light flashing
Fault codes P0201-P0204

Root Cause

Internal piezo crystal breakdown inside the injector head.

How To Fix

Replace faulty injector. Reconditioned Siemens injectors are available but new is recommended. Must be coded to ECU. Cost: £250-400 per injector.

Estimated Repair Costs

Repair Option	Est. Cost (GBP)
DIY (parts only)	£100–£160
Independent Garage	£250–£400
Main Dealership	£400–£640

Other Faults on This Variant

Electric Window Regulator Cable Failure

Minor

2004-201150,000–120,000 miles£100–£200

The cables inside the electric window regulator mechanism fray and snap, causing the window glass to drop into the door frame.

Engine Thermostat Sticking Open

Minor

2004-201160,000–120,000 miles£100–£250

The engine coolant thermostat fails in the 'open' position. The engine never reaches its optimal operating temperature, killing fuel economy.

Starter Motor Solenoid / Brush Wear

Severe

2004-201170,000–130,000 miles£150–£350

The starter motor wears out internally. This is particularly common on vehicles equipped with Stop/Start systems.

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