Service brakes
ON CERTAIN PASSENGER VEHICLES, THE NON-RETURN VALVE MAY CRACK DUE TO A POOR WELD CAUSING A VACUUM LEAK.
NHTSA lists 3 safety recalls and 4 owner complaints for the 2004 Volvo V40. Most complaints involve service brakes (1) and air bags (1). The EPA rates it 22 mpg combined.
ON CERTAIN PASSENGER VEHICLES, THE NON-RETURN VALVE MAY CRACK DUE TO A POOR WELD CAUSING A VACUUM LEAK.
ON CERTAIN SEDANS AND STATION WAGONS, THERE MAY BE A FUEL LEAK FROM THE FUEL RAIL DUE TO INADEQUATE WELDING.
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 VEHICLES AND, IN CERTAIN CASES, THE OWNER'S MANUAL ISOFIX INFORMATION IS INCORRECT.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“TL* THE CONTACT OWNS A 2004 VOLVO V40. WHILE DRIVING 15 MPH, THE BRAKES MALFUNCTIONED. THE CONTACT DEPRESSED THE BRAKE PEDAL TO THE FLOORBOARD IN ORDER TO STOP THE VEHICLE. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 44,000.”
“THE DRIVER'S SIDE AIRBAG HAS FAILED FOR NO APPARENT REASON. THE COST OF REPAIR WILL BE AROUND $900.00 THE CAR WAS PURCHASED 4 YEARS AGO. THAT IS A VERY COSTLY REPAIR FOR A RELATIVELY YOUNG VEHICLE. I ASKED THE SERVICE REPRESENTATIVE AT MY AUTHORIZED VOLVO REPAIR SHOP IF I SHOULD EXPECT THE RIGHT SIDE TO FAIL AS SOON AS I REPAIR THE LEFT ONE. HE SAID "NO, THE RIGHT NEVER GOES OUT." "I HAD ONE IN JUST LAST WEEK- EXACT SAME PROBLEM AS YOURS." *TR”
“DT: CONSUMER STATES WHEN THERE IS A SUN GLARE ON THE DASHBOARD THERE ISN'T ENOUGH ILLUMINATION. THE CONSUMER WAS UNABLE TO SEE THE INSTRUMENTS ON THE DASHBOARD. THE CONSUMER TOOK THE VEHICLE TO THE DEALERSHIP AND WAS TOLD THERE WAS NOTHING THAT COULD BE DONE ABOUT IT.*AK THE CONSUMER STATED A FLASH LIGHT MUST BE USED TO SEE THE INSTRUMENTS ON THE PANEL. *JB”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| V40 Auto 5-spd, 4 cyl, 1.9 L, Turbo · Front-Wheel Drive | 19 | 27 | 22 | $3,600 | 404 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
3 safety recalls as of Oct 28, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 4 complaints with NHTSA. The most-cited components are service brakes (1), air bags (1), structure (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2004 Volvo V40 at 22 mpg combined, depending on engine and drivetrain (1 version rated).