2007 Volvo S40 Owner's Manual - Page 112

Volvo recommends the use of snow tires on all four wheels for winter driving - see the chapter "Wheels and tires." To prevent the washer fluid reservoir from freezing, add washer solvents containing antifreeze (see age 188 for the location of the washer fluid reservoir). This is important since dirt is often splashed on the windshield during winter driving, requiring the frequent use of the washers and wipers. Volvo Washer Solvent should be diluted as follows: Down to 14° F (-10° C): 1 part washer solvent and 4 parts water Down to 5° F (-15° C): 1 part washer solvent and 3 parts water Down to 0° F (- 18° C): 1 part washer solvent and 2 parts water Down to -18° F (-28° C): 1 part washer solvent and 1 part water. Use Volvo Teflon Lock Spray in the locks. NOTE Avoid using de-icing sprays as they can cause damage to the locks. Conserving electrical current Keep the following in mind to help minimize battery drain: When the engine is not running, avoid turning the ignition key to position II. Many electrical systems (the audio system, the optional navigation system, power windows, etc) will function with the ignition key in position I. This position reduces drain on the battery. Please keep in mind that using systems, accessories, etc that consume a great deal of current when the engine is not running could result in the battery being completely drained. The optional 12-volt socket in the cargo area provides electrical current even with the ignition switched off, which drains the battery. NOTE If the ignition is switched on, a warning message will be displayed in the text window in the instrument panel when the battery charge is low. An energy conserving function designed into the vehicle's electrical system will switch off certain functions or reduce the load on the battery by, e.g., reducing the audio system's volume. Before a long distance trip It is always worthwhile to have your vehicle checked at a Volvo retailer before driving long distances. Your retailer will also be able to supply you with bulbs, fuses, spark plugs and wiper blades for your use in the event that problems occur. As a minimum, the following items should be checked before any long trip: Check that engine runs smoothly and that fuel consumption is normal. Check for fuel, oil, and fluid leakage Have the transmission oil level checked 1 . Check condition of drive belts. Check state of the battery's charge. Examine tires carefully (the spare tire as well), and replace those that are worn. Check tire pressures. The brakes, front wheel alignment, and steering gear should be checked by your Volvo retailer only. Check all lights, including high beams. Reflective warning triangles are legally required in some states/provinces. Have a word with your Volvo retailer if you intend to drive in countries where it may be difficult to obtain the correct fuel. Consider your destination. If you will be driving through an area where snow or ice are likely to occur, consider snow tires.