Volkswagen New Beetle. Manual - part 1730

 

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Volkswagen New Beetle. Manual - part 1730

 

 

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VAG1594 connector test kit  

Test requirements 

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Coolant temperature must be at least 80 C, see DIAGNOSTIC MODE 1: CHECK MEASURED 
VALUES
 ; PID 5, Coolant temperature.  

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No leaks on intake or exhaust side.  

Test sequence 

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Disconnect connector -2- at Wastegate Bypass Regulator Valve -N75- (-1-). 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Turbocharger, G - Charger, 1.8L Generic Scan Tool - New Beetle

  

Fig. 16: Disconnecting Connector At Wastegate Bypass Regulator Valve 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Turbocharger, G - Charger, 1.8L Generic Scan Tool - New Beetle

  

Courtesy of VOLKSWAGEN OF AMERICA, INC.

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Start engine and increase speed to maximum RPM by depressing accelerator pedal suddenly. Operating 
rod -2- for wastegate bypass regulator valve must move. 

Fig. 17: Identifying Bypass Regulator Valve Operating Rod 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If operating rod does not move: 

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Check lever for wastegate bypass regulator valve -1- for ease of movement. If rusted solid, replace 
turbocharger. 

If operating rod does not move despite freely moving lever: 

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Replace turbocharger, see item no. 6  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Turbocharger, G - Charger, 1.8L Generic Scan Tool - New Beetle

  

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Erase DTC memory of Engine Control Module (ECM), see DIAGNOSTIC MODE 4: RESET/ERASE 
DIAGNOSTIC DATA
 .  

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Generate readiness code, see READINESS CODE, GENERATING .  

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Check DTC memory:  

Deceleration shut-off valve, checking 

Recommended special tools and equipment e.g.: 

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VAG1390 hand vacuum pump 

Fig. 18: Identifying VAG1390 Hand Vacuum Pump 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Test requirement 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Turbocharger, G - Charger, 1.8L Generic Scan Tool - New Beetle

  

 

 

 

 

 

 

 

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