2003 Volvo S40 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Base Sedan 4-Door
- T4 Sedan 4-Door
- 2.0T Sedan 4-Door
Engines covered
- 1.9L 1948CC l4 GAS DOHC Turbocharged
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN SEDANS AND STATION WAGONS, THERE MAY BE A FUEL LEAK FROM THE FUEL RAIL DUE TO INADEQUATE WELDING.
FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN A FIRE.
DEALERS WILL INSTALL A V-CLAMP TO THE FUEL RAIL. OWNER NOTIFICATION BEGAN ON JANUARY 28, 2004. OWN
CERTAIN PASSENGER CARS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE SECOND ISOFIX GUIDE WAS NOT INSTALLED IN THESE
THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
OWNERS WILL RECEIVE A LETTER/PACKAGE CONSISTING OF THE SECOND ISOFIX GUIDE WITH INSTALLATION INSTRUC
This is a Technical Journal: Text plus 2 PDFs and 1 .PNG Oil Consumption test. Perform the test. Follow service procedure Description and Service sections updated to clarify that vehicle reports are not required.
This is a TJ text only - The purpose of this TJ is to be a master reference list to easily identify any components that are on prior approval. This TJ will be regularily updated as items are added or removed from prior approval. Curren
This is a Technical Journal. Vehicle type and platform identification.
This is a Technical Journal: Remote connection, BOMGAR application. Before joining a remote session: Connect a suitable battery maintainer/charger and verify that the battery voltage indicated in VIDA is between 12.5V and 14.9V. C
Volvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has decided to launch Service Action S10303 on certain model year 2025 EX90 vehicles. Volvo Car Investigations have identified that there is a pairing i
Volvo Cars USA LLC and Volvo Car Canada LTD on behalf of the Volvo Car Corporation has decided to launch Service Action S10303 on certain model year 2025 EX90 vehicles. Volvo Car Investigations have identified that there is a pairing i
This is a Technical Journal: Vehicle/Connectivity report checklist. To provide timely and high-quality feedback to the appropriate department or factory
This is a Technical Journal: Remote connection, BOMGAR application. Before joining a remote session: Connect a suitable battery maintainer/charger and verify that the battery voltage indicated in VIDA is between 12.5V and 14.9V. C
Showing the 8 most recent of 53 technical service bulletins on file with NHTSA.
I WAS DRIVING WHEN THE CAR START TO ACCELERATED BY ITSELF, ACCEL PEDAL WENT TO THE FLOOR. I COULD NOT KEEP A CAR EVEN BY THE HAND BRAKE, SO AS IT WAS JUMPING AHEAD. THEN THE CAR BEGAN TO BLOW BLAC
I WAS DRIVING WHEN THE CAR START TO ACCELERATED BY ITSELF, ACCEL PEDAL WENT TO THE FLOOR. I COULD NOT KEEP A CAR EVEN BY THE HAND BRAKE, SO AS IT WAS JUMPING AHEAD. THEN THE CAR BEGAN TO BLOW BLAC
I WAS DRIVING WHEN THE CAR START TO ACCELERATED BY ITSELF, ACCEL PEDAL WENT TO THE FLOOR. I COULD NOT KEEP A CAR EVEN BY THE HAND BRAKE, SO AS IT WAS JUMPING AHEAD. THEN THE CAR BEGAN TO BLOW BLAC
I WAS DRIVING WHEN THE CAR START TO ACCELERATED BY ITSELF, ACCEL PEDAL WENT TO THE FLOOR. I COULD NOT KEEP A CAR EVEN BY THE HAND BRAKE, SO AS IT WAS JUMPING AHEAD. THEN THE CAR BEGAN TO BLOW BLAC
Engine light stays on. I have had 2 mechanics check it out. They don't know why the light is on. I am very concerned about the fuel line problem.
Showing the 5 most serious of 23 complaints filed with NHTSA.
