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Table of Contents > Turbocharging/supercharging > Exhaust turbocharger > Checking vacuum unit for turbocharger

VW Passat B6 Service Manual ➜ Checking vacuum unit for turbocharger

CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...  
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018  
2)  
Use high-temperature paste ⇒ ETKA (Electronic parts cata‐  
logue) .  
1.4  
Checking vacuum unit for turbocharger  
Special tools and workshop equipment required  
♦ Hand operated vacuum pump - VAS 6213-  
Test specification:  
♦ Hose from turbocharger via charge pressure control solenoid  
valve - N75- to vacuum unit must have through-flow (not  
blocked).  
♦ Charge pressure control solenoid valve - N75- OK.  
Procedure:  
– Remove engine cover panel ⇒ page 141 .  
– Connect hand-operated vacuum pump - VAS 6213- to vacuum  
unit -arrow-.  
– Move slide ring -1- on hand vacuum pump - VAS 6213- to po‐  
sition -B- for “pressure”.  
Caution  
The pressure must remain at or below 750 mbar! If the pres‐  
sure is exceeded, the vacuum unit can be damaged.  
– Operate hand vacuum pump - VAS 6213- several times and  
observe the linkage.  
438  
Rep. gr.21 - Turbocharging/supercharging  
CC 2010 ➤ , Eos 2006 ➤ , Golf 2004 ➤ , Golf 2009 ➤ , Passat 2006 ➤ , ...  
4-cyl. injection engine (1.8 and 2.0 l engine, chain drive) - Edition 08.2018  
The linkage -A- should start to move at a pressure of approx.  
300 mbar and be at its limit stop at a pressure of approx.  
700 mbar.  
The stroke of the rod is approx. 10 mm.  
Note  
If no pressure can be built up using hand vacuum pump - VAS  
6213- , or if the pressure drops immediately again, check hand  
vacuum pump - VAS 6213- and connecting hoses for leaks. If no  
fault is found: renew vacuum unit ⇒ page 443 .  
1.5  
Adjusting turbocharger vacuum unit (en‐  
gine codes BZB, CGYA, CDAA, CDAB)  
Note  
This procedure is used only to adjust the vacuum unit. When  
checking adjusted vacuum units the values may differ.  
Special tools and workshop  
equipment required  
1. Exhaust turbocharger  
439  

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