2008 Volvo S40 Owner's Manual - Page 182

If your Check Engine (MIL) light is lit - or was lit but went out without service, have your vehicle diagnosed and, if necessary, serviced by a qualified Volvo technician. If you recently had service for a lit Check Engine light, or if you had service that required disconnecting the battery, a period of driving is necessary to bring the OBD II system to "ready" for inspection. A half-hour trip of mixed stopand-go/highway driving is typically needed to allow OBD II to reach readiness. Your Volvo retailer can provide you with more information on planning a trip. Maintain your vehicle in accordance with your vehicle's maintenance schedule. 203 09 Maintenance and servicing Hood Opening the hood To open the hood: 1. Pull the lever located under the left side of the dash to release the hood lock. 2. Lift the hood slightly. 3. Press up the release control located under the front edge of the hood (at the center) up to the right, and lift the hood. WARNING Check that the hood locks engage properly when closed. 204 09 Maintenance and servicing Engine compartment