the green cap is the Power Steering fluid
Driver's side of the engine compartment with a light green cap.
If it is an air cooled engine then it will not have a radiator cap.
In the top center of the engine is an oil cap. Remove the cap and insert engine oil. The dip stick for measuring the level in toward the back of the engine on the right side. Check the stick regularly as to pour in the oil to insure that you do not overfill. Keep the level near the top of the xxx area on the stick but not above the xxxI mark.
Top left side of engine silver cap hose on to it
To open the fuel cap on a 2011 Volkswagen Passat, first ensure the car is turned off. Look for the fuel door release lever located on the driver's side, usually near the floor or on the side of the dashboard. Pull the lever to release the fuel door, then simply press the fuel cap to open it. Once opened, twist the cap counterclockwise to remove it for refueling.
in the engine compartment hidden under the valve chamber
passenger side green cap next to the wiper fluid
Owner's manual. It is at the end of the dashboard on the driver's side. Use a flat-head screwdriver to pry off the plastic "end-cap" to expose the fuses.
On a 2002 VW Passat V6, the radiator cap is located on the coolant reservoir, which is typically found near the front of the engine bay on the driver's side. The reservoir is a translucent plastic tank with a cap that can be identified by a coolant symbol. To access it, simply open the hood and look for the tank, then carefully remove the cap to check or add coolant.
In a 2002 Volkswagen Passat, the low pressure port for the air conditioning system is typically located on the larger diameter refrigerant line, which is usually found near the firewall on the passenger side of the engine bay. It can be accessed by removing any covers or components that may obstruct your view. The port is usually capped with a blue or black plastic cap. Always ensure the engine is off and the system is properly discharged before attempting any service.
To add brake fluid to a 2006 Jetta, you will have to take the cap off the brake fluid reservoir. Fill to the appropriate level with DOT 3 brake fluid and screw the cap back on.
Recently took my 2000 passat for emissions test. Afterwards I got emmisions workshop on the display and check engine light. I thought it might be a loose gas cap. Retightened no change!