2004 Volvo S40, 2004 Volvo V40 Recall: ON CERTAIN PASSENGER VEHICLES, THE NON-RETURN VALVE MAY CRACK DUE TO A…
NHTSA campaign 04V493000 · Service Brakes, Hydraulic · filed Oct 14, 2004 · verified Jul 30, 2026
The defect
ON CERTAIN PASSENGER VEHICLES, THE NON-RETURN VALVE MAY CRACK DUE TO A POOR WELD CAUSING A VACUUM LEAK.
The risk
IF THIS OCCURS, MORE BRAKE PEDAL FORCE MAY BE REQUIRED TO STOP THE VEHICLE AND/OR MAY EXPERIENCE A ROUGH ENGINE IDLE, WHICH COULD RESULT IN A CRASH.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DEALERS WILL INSPECT, AND IF NECESSARY, REPLACE THE VACUUM HOSE. THE RECALL BEGAN ON NOVEMBER 29, 2004. OWNERS SHOULD CONTACT VOLVO CARS AT 1-800-458-1552.
CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Affected vehicles
Related recalls
More Volvo S40 recalls
Other campaigns involving Volvo vehicles
Source: NHTSA recall database, campaign 04V493000 (manufacturer number 137). Data last verified Jul 30, 2026.