🏷️ Basic Information

Make:

Ford

Model:

Focus

Year:

2003

Chassis Code:

Mk1 (DAW, DBW, DFW, DNW)

Platform:

Ford CW170

👋 Introduction

Positioning:

The 2003 Ford Focus was a key player in the compact car segment, known for its European-influenced design, agile handling, and practicality.

Competitors:

Competed against vehicles like the Honda Civic, Toyota Corolla, Mazda3, Volkswagen Golf, and Chevrolet Cavalier.

Features Of Model:

Independent rear suspension (a rarity in its class), responsive steering, multiple engine options, available body styles (sedan, wagon, hatchback).

Value For Buyers:

Provides in-depth technical information essential for maintaining, diagnosing, and repairing the 2003 Ford Focus, empowering owners and independent shops.

📋 Manual Details

Primary Coverage:

Mechanical, Electrical, Body, Maintenance, Troubleshooting, Repair, Diagnostics

Specific Systems:

Engine (Zetec, Duratec), Transmission (Manual, Automatic), Brakes, Suspension, Steering, HVAC, Electrical System, Body, Emissions, Fuel System, Cooling System, Exhaust System, Ignition System, Drivetrain, Body Control Modules (BCM), Powertrain Control Modules (PCM)

Estimated Pages:

Approx. 2000+ pages (typical for comprehensive software)

Type:

Factory Service Manual (FSM) / Workshop Manual

Language:

English

Format:

Software (CD-ROM/Downloadable)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, cylinder head, valvetrain, crankshaft, pistons, connecting rods, lubrication system, cooling system, timing belt/chain

Engine Performance:

Fuel delivery, ignition timing, emissions control, turbocharging (if applicable), diagnostics, performance tuning parameters

Transmission Manual:

Clutch, gearbox disassembly/assembly, gear ratios, shift linkages, driveline components

Transmission Automatic:

Torque converter, valve body, planetary gear sets, hydraulic controls, electronic control module (TCM), fluid types and capacities

Brakes:

Disc brake systems (front and rear), ABS, EBD, parking brake, hydraulic lines, master cylinder, calipers, rotors, pads

Suspension:

Front suspension (MacPherson struts, control arms), rear suspension (independent, torsion beam), shock absorbers, springs, bushings, alignment specifications

Steering:

Power steering system (hydraulic), steering rack, steering column, tie rods, wheel alignment

Electrical System:

Battery, charging system, starting system, lighting, wipers, horn, power windows, door locks, fuses, relays, wiring diagrams

HVAC:

Air conditioning system, heater core, blower motor, climate control panel, refrigerant handling, system diagnostics

Body And Interior:

Body panel removal/installation, interior trim, seats, dashboard, doors, windows, bumpers, rust prevention, collision repair basics

Emissions Control:

Catalytic converter, oxygen sensors, EGR system, evaporative emission control (EVAP), diagnostic trouble codes (DTCs)

Maintenance:

Oil changes, filter replacements, coolant flushes, brake fluid changes, spark plug replacement, air filter replacement, belt inspections/replacement, tire rotation

Troubleshooting:

Diagnostic flowcharts, symptom-based troubleshooting, component testing procedures, fault code interpretation

Repair:

Component removal and installation, engine rebuilds, transmission overhauls, brake caliper replacement, suspension component replacement, electrical component repair

Diagnostics:

OBD-II diagnostics, scan tool usage, sensor data interpretation, actuator testing, circuit testing

Specifications:

Torque specifications for all fasteners, fluid capacities, clearances, pressures, electrical resistance values

Depth:

Comprehensive; covers everything from basic scheduled maintenance to complete engine and transmission overhauls, advanced electrical diagnostics, and body repair.

User Level:

Suitable for professional technicians, DIY enthusiasts, and advanced home mechanics.

📊 Manual Specifications

Format:

Executable Software (.exe), potentially with PDF components

System Requirements:

Windows OS (e.g., Windows 98, ME, 2000, XP)

Printability:

Printable pages (if software allows)

Binding Type:

N/A (Software)

Paper Type:

N/A (Software)

⚙️ Engine Specifications

Engine Options:

2.0L Zetec-E DOHC I4 (SPI/ZTS/ZSW trims), 2.3L Duratec DOHC I4 (SE/SES trims - North America)

Zetec E Output:

Approx. 110-130 hp, 125-135 lb-ft torque (depending on specific tuning/market)

Duratec Output:

Approx. 145 hp, 150 lb-ft torque

Injection Type:

Electronic Multi-Port Fuel Injection (MPI)

Block Material:

Aluminum Alloy (Zetec-E), Cast Iron (Duratec)

Head Material:

Aluminum Alloy

Coolant Type:

Ford Super Coolant (Orange) or equivalent (50/50 mix with distilled water)

Oil Type Zetec:

SAE 5W-30 or 5W-40 (API SG/SH/SJ or higher, meeting Ford WSS-M2C153-E)

Oil Capacity Zetec:

Approx. 4.5 US quarts (4.3 L) with filter

Oil Type Duratec:

SAE 5W-20 (API SL or higher, meeting Ford WSS-M2C153-G)

Oil Capacity Duratec:

Approx. 4.5 US quarts (4.3 L) with filter

🔧 Transmission

Transmission Manual:

IB5 5-speed manual (standard on most trims)

Transmission Automatic:

4F27E 4-speed automatic

Manual Fluid:

Ford WSD-M2C200-C (75W-90 synthetic gear oil)

Automatic Fluid:

MERCON V (Ford WSS-M2C195-A or equivalent)

Automatic Capacity:

Approx. 7.0-8.5 US quarts (6.6-8.0 L) (dry fill)

📐 Dimensions

Length:

Approx. 165.2 inches (4196 mm) (Sedan)

Width:

Approx. 67.5 inches (1715 mm)

Height:

Approx. 58.5 inches (1486 mm) (Hatchback/Sedan)

Wheelbase:

Approx. 103.2 inches (2620 mm)

Cargo Volume Sedan:

Approx. 13.8 cu ft

Curb Weight:

Approx. 2600-2800 lbs (1180-1270 kg)

🛡️ Safety Features

NHTSA Front Impact:

5 Stars (Driver and Passenger)

NHTSA Side Impact:

4 Stars (Front Passenger), 3 Stars (Rear Passenger)

IIHS Frontal Offset:

Good

ABS:

Standard (on most trims)

Traction Control:

Optional (on some trims)

Airbags:

Frontal airbags (driver and passenger), optional side airbags

Seatbelts:

3-point height-adjustable front seatbelts with pretensioners, rear 3-point seatbelts

💡 Technology Features

Audio System:

Factory AM/FM/CD player, optional premium sound systems, steering wheel audio controls on some trims.

Display:

Basic digital or analog displays for climate control and audio. No central infotainment screen.

Cruise Control:

Available on higher trims.

Keyless Entry:

Available on many trims.

Connectivity Options:

Limited to basic audio connectivity; no Bluetooth or USB integration from the factory.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first (using synthetic oil)

Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed

Spark Plug Replacement Zetec:

Every 100,000 miles (160,000 km) (Platinum)

Spark Plug Replacement Duratec:

Every 100,000 miles (160,000 km) (Iridium)

Timing Belt Replacement Zetec:

Every 100,000 miles (160,000 km) or 10 years

Coolant Flush Interval:

Every 30,000 miles (48,000 km) or 2 years

Brake Fluid:

DOT 3 or DOT 4 (meeting Ford WSS-M6C65-A1)

Power Steering Fluid:

Ford MERCON V or MERCON (meeting Ford WSS-M2C195-A)

Common Problems Zetec:

Ignition coil pack failures, occasional coolant leaks (thermostat housing, hoses), minor oil leaks from valve cover gasket.

Common Problems Duratec:

Can be prone to oil consumption if not maintained properly, occasional sensor failures (e.g., crankshaft position sensor).

Transmission Issues:

Automatic transmission (4F27E) can develop hard shifts or slip if fluid is not changed regularly; manual clutch wear is typical.

Suspension And Steering:

Front sway bar links and bushings can wear, leading to clunking noises; power steering pump whine.

Electrical Quirks:

Rear window defroster can be unreliable; door lock actuators may fail; occasional instrument cluster issues.

📚 Vehicle History

Ford Legacy:

Ford, a global automotive giant, has a long history of producing reliable and innovative vehicles.

First Generation:

The Mk1 Focus (1998-2004) replaced the Ford Escort and was lauded for its modern design and superior driving dynamics.

Focus Design Philosophy:

Engineered with a focus on European market tastes, featuring a 'New Edge' design language and advanced suspension for its class.

Manufacturing Locations:

Primarily manufactured in North America (Wayne, Michigan) and Europe (Germany, Spain, UK).

Model Production Run:

2000-2004 (for the 2003 model year)

🏆 Awards & Recognition

Car And Driver Award:

Named to Car and Driver's '10Best' list for 2000 and 2001.

Safety Ratings Summary:

Generally good safety ratings for its era, particularly in frontal impact.

Engineering Recognition:

Praised for its chassis dynamics and independent rear suspension, setting a benchmark for the segment.