Volkswagen New Beetle. Manual - part 1588

 

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Volkswagen New Beetle. Manual - part 1588

 

 

Fig. 53: Identifying Fuse 28 (Fuel Pump) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Connect remote control V.A.G 1348/3A with adapter cable V.A.G 1348/3-2 to contact 28a to fuel pump 
and Battery positive (+). 

NOTE:

Fuse holder is behind access panel at far left end of dash.

WARNING:

Fuel system is under pressure! Before opening the system place a 
cloth around the connection. Then release pressure by carefully 
loosening the connection.

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 54: Connecting Remote Control V.A.G 1348/3A With Adapter Cable V.A.G 1348/3-2 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Pull off supply line -1- (black markings) and collect leaking fuel with a cloth. 

Fig. 55: Pulling Off Fuel Supply Line (Engine Codes BEV And BGD) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Connect pressure gauge V.A.G 1318 with adapter V.A.G 1318/23 and V.A.G 1318/17 to fuel supply line. 

NOTE:

To do this slide safety ring -2- into the union -1-.

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 56: Connecting Pressure Gauge V.A.G 1318 With Adapter V.A.G 1318/23 And V.A.G 1318/17 
To Fuel Supply Line
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Close pressure gauge shut-off tap. Lever is diagonal to direction of flow (position -B-).  

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Operate remote control V.A.G 1348/3A for approx. 10 seconds to build up a system pressure of approx 4 
bar.  

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Observe pressure drop on gauge. 

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Over a duration of 30 minutes pressure must not drop below 3.2 bar  

If the pressure drops further: 

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Check line connections for leaks.  

If no line connection fault is detected: 

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Replace fuel pressure regulator.  

INTAKE MANIFOLD CHANGE-OVER, CHECKING 

Engine codes BDC, BGD 

This check need only be performed when there is a reduction in available torque, i.e. issues with engine 
elasticity and pulling power on acceleration etc. 

Special tools, equipment, testers, measuring instruments and auxiliary items required 

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V.A.G 1390 Hand vacuum pump 

Fig. 57: Identifying V.A.G 1390 Hand Vacuum Pump 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

V.A.G 1368 Vacuum tester 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 58: Identifying V.A.G 1368 Vacuum Tester 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Work sequence 

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Check that vacuum lines are correctly installed and not interchanged. See INTAKE MANIFOLD 
UPPER PART, DISASSEMBLING AND ASSEMBLING
 and INTAKE MANIFOLD LOWER 
PART, DISASSEMBLING AND ASSEMBLING
 .  

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Check vacuum hoses for porosity.  

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Check vacuum system for leaks.  

Checking vacuum actuator in intake manifold upper part for leaks 

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Pull vacuum hose to variable intake manifold actuator (arrow) off intake manifold change-over valve -1-. 

Fig. 59: Removing Intake Manifold Change-Over Valve 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

NOTE:

The variable intake manifold change-over actuator is integrated in the 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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