Exhaust Gas Recirculation (EGR) Valve. A Valve used to recirculate small amounts of Exhaust Back into the combustion chambers of the engine in order to decrease the combustion temperature, thereby reducing the formation of smog-producing nitrogen oxides. 2.0 LITER, FILTER & COMPONENTS. A3; 2.0L TDI. DIESEL, FILTER & COMPONENTS. Passat; 2.0L TDI.
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VW Golf 2.0TDi -- EGR Removal, Clean & RefitI had an oil leak between my EGR valve and the anti shudder valve in the intake. I remove both components, clean, You need to reset the throttle. It involves the ignition and the gas pedal and waiting a certain amount of time. Worked for mine, but I don't remember the exact procedure. probably key to ON position engine OFF, and some combination of the pedal to the floor for some minimum amount of time A failed EGR valve cooler in your 2015 Volkswagen Passat will often have no noticeable symptoms beyond a check engine light, but it does cause your vehicle to operate inefficiently and produce higher emissions. Our technicians have access to manufacturer-approved repair processes and Volkswagen genuine parts. EMISSION SYSTEM. EMISSION COMPONENTS.
At 64,000 mile i had my engine valves manually cleaned ($800) as the check engine light came on and the dealer said the new direct injection engines have issues with the valves getting covered and not seating right since the gas goes into the cylinder versus past the valve to keep them clean. After 20,000 it started again on cylinder 4 after i
AndyBees. The EGR has an internal valve connected to the shiny diaphragm on top. The valve opens and closes allowing exhaust gases to inter the intake system based on ECU input relating to emissions. The valve has a SEAL to keep High Pressure air from the Turbo from escaping. The air from the Turbo contains some oil (very normal).
1. The crud (soot/oil mix) is either trapped under a valve which holds it open not allowing the piston to the top of the cylinder. 2. The crud could be on top of a piston. 3. The crud could be stuck to the cylinder head above the piston. In any of those circumstances the piston is kept from completing it's cycle to the top.

In this video I will show you the complete process of servicing the Mass air flow sensor from this Volkswagen Passat B6 1.6 TDI . It can be done with bassic

Diagnosing P0401 EGR insufficient flow on an ALH Volkswagen TDI, the code can be somewhat misleading.Getting a bad reading from the MAF results in poor runni
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    • how to clean egr valve vw passat 2.0 tdi