Volkswagen New Beetle. Manual - part 1571

Fig. 4: Identifying Injection System Component Location (Engine Code BEV) 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

Courtesy of VOLKSWAGEN OF AMERICA, INC.

Location of 6-pin connector -1- for heated oxygen sensor 

Fig. 5: Identifying 6-Pin Connector Of Heated Oxygen Sensor 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Location of 4-pin connector -1- for oxygen sensor behind catalytic converter 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

Fig. 6: Identifying 4-Pin Connector Of Oxygen Sensor Behind Catalytic Converter 
Courtesy of VOLKSWAGEN OF AMERICA, INC.

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

GENERAL NOTES ON INJECTION 

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The engine control module is equipped with self-diagnosis. Before performing repairs and fault finding 
the fault memory of all control modules must be interrogated using the automatic test sequence (in 
Guided fault finding). This is necessary as the various control modules are interconnected via a data bus. 
Also the vacuum hoses and connections must be checked (unmetered air).  

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Fuel hoses in engine compartment must only be secured with spring-type clips. The use of clamp or 
screw-type clips is not permitted.  

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The battery may only be disconnected when the ignition is switched off. If a coded radio is installed, 
obtain the radio code before disconnecting the battery.  

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For trouble-free operation of the electrical components, a voltage of at least 11.5 V is necessary.  

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Do not use sealing compounds containing silicone. Particles of silicone drawn into the engine, will not be 
burned in the engine and damage the oxygen sensors.  

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If the engine starts, runs for a short period and then stops, after fault finding, repairs or component tests, 
then the fault may lie with the immobilizer which is blocking the engine control module. In such cases the 
control module must be adapted. See COMPONENTS AND FUNCTIONS, ADAPTING .  

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During some checks it is possible that the control module will detect and store a fault. Therefore after 
completing all checks and repairs the fault memory must be interrogated and if necessary erased. See 
ENGINE CONTROL MODULE FAULT MEMORY, INTERROGATING AND ERASING .  

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Models with an airbag are equipped with a crash fuel shut-off system. This system reduces the danger of 
a fire in a crash as the fuel pump is switched off via the fuel pump relay.  

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When the door is opened the fuel pump is activated for 2 seconds to build up pressure in fuel system. This 
improves the starting characteristics of the engine.  

Safety precautions. See SAFETY PRECAUTIONS . 

Rules for cleanliness. See RULES FOR CLEANLINESS . 

Technical data. See Technical data . 

FUEL INJECTION SYSTEM COMPONENTS, REMOVING AND INSTALLING 

Engine code AEG 

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Safety precautions. See SAFETY PRECAUTIONS  

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Rules for cleanliness. See RULES FOR CLEANLINESS  

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Technical data. See Technical data  

1. Intake manifold, upper section  

2. Motronic Engine Control Module (ECM) -J220- 

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Location: Under left side inner plenum chamber cover in passenger compartment  

NOTE:

The following list refers to items in Fig. 7 .

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)