Unfortunately the P0440 code could be a comdination of about 4 different possibilities within the EVAP System: 1. Fuel Cap loose or Not holding proper pressure causeing a leak in the EVAP System. 2. EVAP Canister Purge Volume Control Valve. 3. EVAP Canister Purge Control Valve. 4. EVAP Canister Vent Control Valve.
A6 (C7 Platform) Discussion - Valve coking and direct injection engines - After doing some research on the horrible effects of Direct Injection on the up stream side of the intake valves, I decided to modify the PCV system on my 2012 A6 3.0.
Hey, i recently picked up a 2008 A6 estate. The car has been running immaculately well for its age and mileage. However i have recieved the dreaded EML, the code is the P0405 code. This relates to the EGR sensor. This is causing the ECU to not know how open or closed the egr valve is and its givi From this post Link:-Audi A6 2.7 & 3.0 TDi EGR & Intake system cleaning info please Above is the flow of the EGR gas, the red line is the throttle body adapter, the yellow diamond is roughly the location of the EGR inlet port into charge air system. Yellow line is the EGR gas flow, blue lines when going through EGR cooler. Because of the cost and the fact I was told the car is fine to drive, I've continued driving without any issues. Today however, my car has been at an Audi dealer for a service and they have identified a broken wire on the EGR cooler change over valve, which could be the cause of the engine management light. They're quoting nearly £200 to fix this. Unscrew the two screws coming into the bottom of the EGR (holding a metal pipe). 6. Unbolt the metal pipe where it connects to the engine and remove. 7. Remove the three bolts which hold the EGR onto the inlet manifold. 8. Unclip the pipe into the EGR. 9. Service type. Positive Crankcase Ventilation (PCV) Valve Replacement. Estimate. $516.51. Shop/Dealer Price. $639.42 - $968.71. 2010 Audi A6 Quattro V6-3.0L Turbo. Service type. Positive Crankcase Ventilation (PCV) Valve Replacement. A8. MERCEDES-BENZ. BMW. VW. FORD. PEUGEOT. NISSAN. Illustrated step-by-step manuals and video tutorials on replacing AUDI A1 EGR Valve will tell you how to carry out DIY replacement of parts and maintenance of your car quickly and cheaply.
Shop 2014 Audi A6 EGR valve. 2013-15, COOLER & COMPONENTS. 2013-16, EGR COMPONENTS. 3.0 LITER DIESEL - OEM Audi Part # 059131503AL (059-131-503-AL, 059131503AC, 059131503AN, 059131503S, 059131503T) Audi Genuine Parts and Accessories
Fuel filter, fuel injector/fuel system concentrated cleaner additive, intake cleaner (Liqui Moly makes one for the TDIs to remove intake/EGR related deposits, which can cause moving parts/butterfly valves to stop moving, or have only limited range of movement. rannI8q.
