Generic Scan Tool
Ignition System
CAUTION!
Observe the following for all installations, especially in the engine compartment due to lack of room:
• Route lines of all types (e.g. for fuel, hydraulic, EVAP canister system, coolant and refrigerant, brake fluid, vacuum) and electrical wiring so that the original path is followed.
• Watch for sufficient clearance to all moving or hot components.
• Fuel system is under pressure! Before opening system, place rags around the connection point. Then release pressure by carefully loosening connection.
• Test equipment must always be secured to the rear seat and operated by a second person.
• Test and measuring equipment that is operated from the passenger seat, the person seated could be injured in the event of an accident involving deployment of the passenger-side airbag.
• Do not touch or disconnect ignition wires when engine is running or turning at starting RPM.
• Only disconnect and reconnect wires for injection and ignition system, including test leads, if the ignition is turned off.
CAUTION!
The use of nails, paper clips, or another unauthorized materials to back-probe electrical harness connectors is strictly prohibited and may cause damage to the electrical harness connectors, terminal ends or damage to a component. Use only the manufacturers test lead kit or an equivalent aftermarket test lead kit for back-probing all electrical harness connectors.
Clean Working Conditions
CAUTION!
CAUTION! Whenever working on fuel supply and fuel injection systems, carefully observe the following six rules of cleanliness
• Thoroughly clean fuel system line and hose connections and the surrounding area before disconnecting.
• Place removed components on a clean surface and cover. Use plastic sheeting or paper.
• Do not use fluffy rags that could leave lint!
• Carefully cover over or seal any components that have been opened if repairs are not carried out immediately.
• Install only clean parts: Do not remove replacement parts from the packaging until immediately before they are to be installed. Do not use parts that have been stored without packaging (e.g. in toolboxes, etc.).
• When the fuel system is opened: Avoid working with compressed air whenever possible. Avoid moving the vehicle if possible.
• Make sure that no Diesel fuel runs onto coolant hoses. Affected hoses must be cleaned immediately. Contaminated hoses must be replaced.
General Information
Check the Technical Bulletins for information that may supersede any information included in this service information.
• All manufacturers special tools as well as common tools may contain a manufacturer specific part number. These tools may be substituted with an equivalent aftermarket tool or are available for purchase through Audi.
• Manufacturers special tools as well as common tools that contain a manufacturer specific part number may be referenced in the test procedure illustrations showing the tool use or installation. If the manufacturer specific tool is not being used, an equivalent aftermarket tool may be installed in the same manner as the manufacturers special tool.
• The manufacturers test box Test Box 105 Pin (VAG1598/42) is available for purchase or rental.
Spark Plug Technical Data
1) Not adjustable.