Volkswagen New Beetle. Manual - part 1470

 

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Volkswagen New Beetle. Manual - part 1470

 

 

z

Check supply and return pipes on fuel delivery unit for leaks.  

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Repeat functional check.  

Is the malfunction still present: 

z

Remove rear right wheel housing liner. 

See REAR WHEEL HOUSINGS LINER, ASSEMBLY OVERVIEW . 

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Check connecting pipes and hoses between Leak Detection Pump and EVAP canister. Replace if 
necessary. See EVAPORATIVE EMISSION (EVAP) SYSTEM COMPONENTS, SERVICING .  

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Check wires and wire connections between EVAP canister and tank flap unit or tank ventilation valve for 
proper seal. See EVAPORATIVE EMISSION (EVAP) SYSTEM, OVERVIEW .  

z

Repeat functional check.  

Is the malfunction still present: 

z

Remove EVAP canister and check for cracks and leaks, replace if necessary.  

z

Repeat functional check.  

LEAK DETECTION PUMP (LDP) -V144-, CHECKING 

Special tools and equipment 

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VAG 1715 Multimeter  

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VAG 1527 BLED test light  

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VAG 1594 A Adapter set  

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VAG 1598/22 Test box  

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Wiring diagram 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

Fig. 59: Identifying Special Tools And Equipment 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Checking voltage supply 

Test conditions 

z

Fuse No. 43 must be OK 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

Fig. 60: Identifying Location Of Fuse No. 43 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

The battery voltage must be at least 11.5 V  

Test sequence 

z

Remove rear right wheel well liner. 

See REAR WHEEL HOUSINGS LINER, ASSEMBLY OVERVIEW 

z

Disconnect 3 pin connector from Leak Detection Pump -V144-. 

NOTE:

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

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

Fig. 61: Disconnecting 3 Pin Connector From Leak Detection Pump 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Connect LED test light VAG 1527 between connector terminal 3 (positive) and engine Ground. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Fuel System - New Beetle, 1.8L (APH, AWV & AWP)

  

 

 

 

 

 

 

 

Content   ..  1468  1469  1470  1471   ..