2008 Volvo S40 Owner's Manual - Page 230

258 11 Specifications Electrical system Three-way catalytic converter - general information Keep your engine properly tuned. Certain engine malfunctions, particularly involving the electrical, fuel or distributor ignition systems, may cause unusually high three-way catalytic converter temperatures. Do not continue to operate your vehicle if you detect engine misfire, noticeable loss of power or other unusual operating conditions, such as engine overheating or backfiring. A properly tuned engine will help avoid malfunctions that could damage the threeway catalytic converter. Do not park your vehicle over combustible materials, such as grass or leaves, which can come into contact with the hot exhaust system and cause such materials to ignite under certain wind and weather conditions. Excessive starter cranking (in excess of one minute), or an intermittently firing or flooded engine can cause threeway catalytic converter or exhaust system overheating. Remember that tampering or unauthorized modifications to the engine, the Electronic Control Module, or the vehicle may be illegal and can cause three-way catalytic converter or exhaust system overheating. This includes: - Altering fuel injection settings or components. - Altering emission system components or location or removing components. - Repeated use of leaded fuel. NOTE Unleaded fuel is required for vehicles with three-way catalytic converters. 259 11 Specifications Volvo programs Volvo On Call Roadside Assistance Your new Volvo comes with a four year ON CALL roadside assistance. Additional information, features, and benefits are described in a separate information package in your glove compartment. If you have misplaced your package, dial: In the U.S.A. 1-800-638-6586 (1-800-63-VOLVO) In Canada: 1-800-263-0475