Volkswagen Passat 2005 Owner's Manual

To reset the service light, turn the ignition off. Press and hold the trip reset button. Turn the ignition on while holding the button. Release the button, then press it again to reset.
It is recommended to use 5W-40 synthetic oil that meets the VW 502 00 specification for optimal performance and protection.
Poor acceleration can be caused by a clogged fuel filter, dirty air filter, faulty mass air flow sensor, or issues with the ignition system. Consider inspecting these components.
To replace the battery, use a small flathead screwdriver to gently pry apart the key fob. Remove the old battery and insert a new CR2032 battery, ensuring the positive side faces up. Reassemble the fob.
Engine overheating may be due to a low coolant level, faulty thermostat, blocked radiator, or a failing water pump. Check these elements for proper function.
Clean the sunroof drains to ensure they are not clogged. Use compressed air or a flexible wire to clear any blockages in the drainage tubes.
The check engine light can indicate various issues such as a loose gas cap, faulty oxygen sensor, or catalytic converter problems. Use a diagnostic scanner to retrieve error codes for precise troubleshooting.
It is recommended to change the timing belt every 80,000 to 100,000 miles to prevent engine damage. Refer to the owner's manual for specific intervals.
The recommended tire pressure is typically 32 PSI for both front and rear tires, but always refer to the sticker located on the driver's side door jamb for exact specifications.
To replace the headlight bulb, open the hood and locate the back of the headlight assembly. Remove the cover, disconnect the wiring harness, and remove the old bulb. Insert the new bulb without touching the glass, reconnect the harness, and replace the cover.