Ignition And Control Systems - Symptom Related Diagnostic Procedures

• Check For Air Leaks In The Intake System (B5254T2; 2004)
  • Checking for air leakage in the intake system
    • Checking for air leakage
• Check For Air Leaks In The Intake System (B6284T; 1999-2001)
  • Checking for air leakage in the intake system
• Check For Air Leaks In The Intake System (B6294S; 2000-2001)
  • Checking for air leakage in the intake system
• Check For Air Leaks In The Intake System (B6294S2; B6294T; 2002-2004)
  • Checking for air leakage in the intake system
• Check For Air Leaks In The Intake System (B6304S3; 1999)
  • Checking for air leakage in the intake system
• Checking Camshaft Adjustment (B5254T2; 2004)
  • Checking camshaft adjustment
    • Removing components
    • Position the engine according to marking
    • Installing crankshaft adjustment tool
    • Installing camshaft adjustment tool, B6304 S
    • Installing camshaft adjustment tool, B52X4 T and B6284 T
    • Installing camshaft adjustment tool, B52X4 S
    • Adjusting the camshaft adjustment light switch
    • Replacing the camshaft seals / variable valve timing (VVT) unit
      • Notes
      • Removing the camshaft seal
      • Position the engine according to the marking
      • Removing the camshaft belt
      • Removing the timing gear pulley with the variable valve timing (VVT) unit
      • Install the adjustment tools
      • Remove the timing gear pulley
      • Replace the camshaft seal
      • Remove the engine cooling fan (FC)
      • Secure the crankshaft position
      • Reinstall
      • Installing the timing belt
      • Tighten the timing belt
      • Checking the markings and belt tension
      • Checking work
      • Replacing the rear seal
      • Replacing the rear camshaft seal
      • Checking the engine
• Checking Camshaft Adjustment (B6284T; 1999-2001)
  • Checking camshaft adjustment
• Checking Camshaft Adjustment (B6294S; 2000-2001)
  • Checking camshaft adjustment
• Checking Camshaft Adjustment (B6294S2; B6294T; 2002-2004)
  • Checking camshaft adjustment
• Checking Camshaft Adjustment (B6304S3; 1999)
  • Checking camshaft adjustment
• Checking Compression (B5254T2; 2004)
  • Checking compression
    • Checking compression
• Checking Compression (B6284T; 1999-2001)
  • Checking compression
• Checking Compression (B6294S; 2000-2001)
  • Checking compression
• Checking Compression (B6294S2; B6294T; 2002-2004)
  • Checking compression
• Checking Compression (B6304S3; 1999)
  • Checking compression
• Checking Engine Coolant Temperature (ECT) Sensor (B5254T2; 2004)
  • Checking the engine coolant temperature (ECT) sensor
    • Checking the engine coolant temperature (ECT) sensor
    • Engine coolant temperature (ECT) sensor, replacing
      • Removal and Installation
• Checking Engine Coolant Temperature (ECT) Sensor (B6284T; 1999-2001)
  • Checking the engine coolant temperature (ECT) sensor
• Checking Engine Coolant Temperature (ECT) Sensor (B6294S; 2000-2001)
  • Checking the engine coolant temperature (ECT) sensor
• Checking Engine Coolant Temperature (ECT) Sensor (B6294S2; B6294T; 2002-2004)
  • Checking the engine coolant temperature (ECT) sensor
• Checking Engine Coolant Temperature (ECT) Sensor (B6304S3; 1999)
  • Checking the engine coolant temperature (ECT) sensor
• Checking Engine Speed (Rpm) Sensor Interference (1999-2002)
  • Checking engine speed (RPM) sensor interference
    • Checking engine speed (RPM) sensor interference
• Checking Engine Speed (Rpm) Sensor Interference (B5254T2; 2004)
  • Checking engine speed (RPM) sensor interference
• Checking Engine Speed (Rpm) Sensor Interference (B6294S2; B6294T; 2003-2004)
  • Checking engine speed (RPM) sensor interference
• Checking For Air Leakage In The Exhaust System (B5254T2; 2004)
  • Checking for air leakage in the exhaust system
    • Checking for air leakage
• Checking For Air Leakage In The Exhaust System (B6284T; 1999-2001)
  • Checking for air leakage in the exhaust system
• Checking For Air Leakage In The Exhaust System (B6294S; 2000-2001)
  • Checking for air leakage in the exhaust system
• Checking For Air Leakage In The Exhaust System (B6294S2; B6294T; 2002-2004)
  • Checking for air leakage in the exhaust system
• Checking For Air Leakage In The Exhaust System (B6304S3; 1999)
  • Checking for air leakage in the exhaust system
• Checking Fuel And Residual Pressures (B5254T2; 2004-2006)
  • Checking the fuel pressure and residual pressure in the workshop
    • Choosing a method for taking a reading
    • Measuring the line pressure
    • Checking the residual pressure
• Checking Fuel And Residual Pressures (B6284T; 1999-2001)
  • Checking the fuel pressure and residual pressure in the workshop
    • Choosing a method for taking a reading
    • Measuring the line pressure
    • Checking the residual pressure
• Checking Fuel And Residual Pressures (B6294S; 2000-2001)
  • Checking the fuel pressure and residual pressure in the workshop
• Checking Fuel And Residual Pressures (B6294S2; B6294T; 2002-2006)
  • Checking the fuel pressure and residual pressure in the workshop
• Checking Fuel And Residual Pressures (B6304S3; 1999)
  • Checking the fuel pressure and residual pressure in the workshop
• Checking Ignition Spark (B5254T2; 2004)
  • Checking ignition spark
    • Checking ignition spark
    • Replacing component
    • Replacing ignition coils
• Checking Ignition Spark (B6284T; 1999-2001)
  • Checking ignition spark
    • Overview
    • Checking ignition spark
    • Replacing component
• Checking Ignition Spark (B6294S; 2000-2001)
  • Checking ignition spark
• Checking Ignition Spark (B6294S2; B6294T; 2002-2004)
  • Checking ignition spark
• Checking Ignition Spark (B6304S3; 1999)
  • Checking ignition spark
• Checking Injectors (B5254T2; 2004)
  • Checking injectors
    • Checking the spark plugs
    • Replacing the component
• Checking Injectors (B6284T; 1999-2001)
  • Checking injectors
• Checking Injectors (B6294S; 2000-2001)
  • Checking injectors
• Checking Injectors (B6294S2; B6294T; 2002-2004)
  • Checking injectors
• Checking Injectors (B6304S3; 1999)
  • Checking injectors
• Checking Spark Plugs (B5254T2; 2004)
  • Checking spark plugs
    • Checking spark plugs
    • Replacing component
• Checking Spark Plugs (B6284T; 1999-2001)
  • Checking spark plugs
• Checking Spark Plugs (B6294S; 2000-2001)
  • Checking spark plugs
• Checking Spark Plugs (B6294S2; B6294T; 2002-2004)
  • Checking spark plugs
• Checking Spark Plugs (B6304S3; 1999)
  • Checking spark plugs
• Checking The Air Conditioning (A/C) System (B5254T2; 2004)
  • Checking the air conditioning (A/C) system
    • Checking components and wiring
    • Checking component
    • Checking the wiring and the relay
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• Checking The Air Conditioning (A/C) System (B6284T; 1999-2001)
  • Checking the air conditioning (A/C) system
• Checking The Air Conditioning (A/C) System (B6294S; 2000-2001)
  • Checking the air conditioning (A/C) system
• Checking The Air Conditioning (A/C) System (B6294S2; B6294T; 2002-2004)
  • Checking the air conditioning (A/C) system
• Checking The Air Conditioning (A/C) System (B6304S3; 1999)
  • Checking the air conditioning (A/C) system
• Checking The Engine Cooling Fan (FC) And Cooling System (B5254T2; B6294S2; B6294T; 2004)
  • Checking the engine cooling fan (FC) and cooling system
    • Checking the engine cooling fan (FC) and cooling system
    • Checking the engine cooling fan (FC)
    • Checking components and connections
    • If no malfunction has been found
• Checking The Engine Cooling Fan (FC) And Cooling System (B6284T; 1999-2001)
  • Checking the engine cooling fan (FC) and cooling system
    • Checking the engine cooling fan (FC) and cooling system
    • Checking the engine cooling fan (FC)
    • If no malfunction has been found
    • Checking components and connections
• Checking The Engine Cooling Fan (FC) And Cooling System (B6294S; 2000-2001)
  • Checking the engine cooling fan (FC) and cooling system
• Checking The Engine Cooling Fan (FC) And Cooling System (B6294S2; B6294T; 2002-2003)
  • Checking the engine cooling fan (FC) and cooling system
• Checking The Engine Cooling Fan (FC) And Cooling System (B6304S3; 1999)
  • Checking the engine cooling fan (FC) and cooling system
• Checking The On-Board Refueling Vapor Recovery Valve (B5254T2; 2004)
  • Checking the on-board refueling vapor recovery valve
    • General information about the on-board refueling vapor recovery valve
    • Information
      • Fault-tracing information
• Checking The On-Board Refueling Vapor Recovery Valve (B6284T; 1999-2001)
  • Checking the on-board refueling vapor recovery valve
• Checking The On-Board Refueling Vapor Recovery Valve (B6294S; 2000-2001)
  • Checking the on-board refueling vapor recovery valve
• Checking The On-Board Refueling Vapor Recovery Valve (B6294S2; B6294T; 2002-2004)
  • Checking the on-board refueling vapor recovery valve
• Checking The On-Board Refueling Vapor Recovery Valve (B6304S3; 1999)
  • Checking the on-board refueling vapor recovery valve
• Checking The Status Of The Pedal Position Sensor (B5254T2; 2004-2006)
  • Checking the status of the pedal position sensor
    • Checking the status of the pedal position sensor
• Checking The Status Of The Pedal Position Sensor (B6284T; 1999-2001)
  • Checking the status of the pedal position sensor
• Checking The Status Of The Pedal Position Sensor (B6294S; 2000-2001)
  • Checking the status of the pedal position sensor
• Checking The Status Of The Pedal Position Sensor (B6294S2; B6294T; 2002-2006)
  • Checking the status of the pedal position sensor
• Checking The Status Of The Pedal Position Sensor (B6304S3; 1999)
  • Checking the status of the pedal position sensor
• Checking The Thermostat (B5254T2; B6294S2; B6294T; 2004)
  • Checking the thermostat
    • Reading off the engine coolant temperature (ECT)
    • Replacing the component
• Checking Thermostat (B6284T; 1999-2001)
  • Checking the thermostat
    • Reading off the engine coolant temperature (ECT)
    • Replacing the component
• Checking Thermostat (B6294S; 2000-2001)
  • Checking the thermostat
• Checking Thermostat (B6294S2; B6294T; 2002-2003)
  • Checking the thermostat
• Checking Thermostat (B6304S3; 1999)
  • Checking the thermostat
• Checking Three-Way Catalytic Converter (TWC) And Exhaust System (B5254T2; 2004)
  • Checking the three-way catalytic converter (TWC) and exhaust system
    • Checking the three-way catalytic converter (TWC) and exhaust system
• Checking Three-Way Catalytic Converter (TWC) And Exhaust System (B6284T; 1999-2001)
  • Checking the three-way catalytic converter (TWC) and exhaust system
• Checking Three-Way Catalytic Converter (TWC) And Exhaust System (B6294S; 2000-2001)
  • Checking the three-way catalytic converter (TWC) and exhaust system
• Checking Three-Way Catalytic Converter (TWC) And Exhaust System (B6294S2; B6294T; 2002-2004)
  • Checking the three-way catalytic converter (TWC) and exhaust system
• Checking Three-Way Catalytic Converter (TWC) And Exhaust System (B6304S3; 1999)
  • Checking the three-way catalytic converter (TWC) and exhaust system
• Oil Consumption (B5254T2; 2004-2006)
  • Checking oil consumption
    • Notes
    • Information
      • Fault-tracing information
• Oil Consumption (B6284T; 1999-2001)
  • Checking oil consumption
• Oil Consumption (B6294S; 2000-2001)
  • Checking oil consumption
• Oil Consumption (B6294S2; B6294T; 2002-2006)
  • Checking oil consumption
• Oil Consumption (B6304S3; 1999)
  • Checking oil consumption
• Readiness Code (B5254T2; 2004-2006)
  • Readiness Code
    • Read the readiness code
    • Read the diagnostic status for readiness
    • Carry out TRIP
    • Quick test of the fuel tank system
    • Diagnostic Trouble Code (DTC) stored
• Readiness Code (B6284T; 1999-2001)
  • Readiness Code
    • Read the readiness code
    • Read the diagnostic status for readiness
    • Carry out TRIP
    • Probe warming not complete
    • Diagnostic Trouble Code (DTC) stored
    • Quick fuel tank system test
      • General about fuel tank system test
      • Checking diagnostic trouble codes (DTCs)
      • Checking engine coolant temperature (ECT)
      • Start the fuel tank system test
• Readiness Code (B6294S; 2000-2001)
  • Readiness Code
• Readiness Code (B6294S2; 2002-2004)
  • Readiness Code
• Readiness Code (B6294T; 2002-2006)
  • Readiness Code
• Readiness Code (B6304S3; 1999)
  • Readiness Code
• Resetting Adaption Values (B6284T; 1999-2001)
  • Resetting adaption values
    • Resetting adaption values
    • Information
      • Fault-tracing information
• Resetting Adaption Values (B6294S; 2000-2001)
  • Resetting adaption values
• Resetting Adaption Values (B6294S2; B6294T; 2002)
  • Resetting adaption values
• Resetting Adaption Values (B6304S3; 1999)
  • Resetting adaption values