Standard Ignition TBV1012 turbocharger bypass valve for the 1999-2001 Volkswagen Passat 4-cylinder 1.8L and other vehicles relieves excess boost pressure when the throttle closes. The same part is also called a diverter valve.
A worn valve can show up as a hiss from the intake, weak boost or sluggish acceleration. A leaking intake hose, a cracked vacuum line or a faulty boost sensor can be behind these signs too, so find the cause before you buy a replacement.
It is a direct-fit OE replacement for the 1999-2001 Volkswagen Passat 4-cylinder 1.8L and the 2002-2004 Audi A6 Quattro V6 2.7L.
Fit and size
Build and materials
This listing holds one turbocharger bypass valve, and each vehicle takes one. The port thread is not included.
Interchange: 2-11012
BCT1012 · 034145710A · 034145710B
This part cross-references / interchanges with the following part numbers:
Is the Standard Ignition TBV1012 bypass valve right for a 1999-2001 Volkswagen Passat 4-cylinder 1.8L?
Yes. Standard Ignition TBV1012 is a direct-fit replacement for the 1999-2001 Volkswagen Passat 4-cylinder 1.8L, and it also fits the 2002-2004 Audi A6 Quattro V6 2.7L.
Is the port thread included with this turbocharger bypass valve?
No. The port thread is not included. This listing is one turbocharger bypass valve.
What connectors does the Standard Ignition TBV1012 have?
Standard Ignition TBV1012 has two round female connectors, two hose connectors and one male port.
Can a worn turbocharger bypass valve cause a hiss or weak boost?
Yes, it can. A worn valve may leak boost, which can show up as a hiss from the intake or weaker acceleration. A shop can test it.
Is 034145710A the same part as the Standard Ignition TBV1012?
034145710A is one of the numbers Standard Ignition TBV1012 replaces. The others are 034145710B, 2-11012 and BCT1012.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
