Posting Permissions. Received the following from the APR Mobile app shortly after an oil change: Code “p164e oil pressure regulating valve electrical malfunction”. Audi service manager said not to worry and they would look at it at the next service. 2017 S6 with APR stage 1 & TCU. I take off the 2 small hex bolts that come up into the bottom of the valves to take them off of the pipesyou'll need a 5mm allen wrench that you need to grind down to make it short enough to get in therethen it's a lot of patience and 1/16th turns on the bolts, you'll probably get a few hand cramps in the process. 2005 Jetta GLS TDi. Mar 30, 2015. #27. jimbote said: submerge it in a five gallon bucket of water for a week or so carbon is water soluble and the buildup in the cooler itself is almost pure carbon not so for the intake and egr which is carbon mixed with petroleum. Carbon has an extremely low solubility in water. PCV Valve/Engine Oil Separator Failure. Thermostat Failure. 1. Ignition Coil Pack and Spark Plug Failure. Ignition coils and spark plugs are very common to go out in many Audi’s. The Ignition coils transform the voltage from the battery to a higher voltage for the spark plugs to create a spark and create combustion. cleaning diesel Particulate Filter and exhaust gas recirculation valve cooler on the vehicle without removal of the parts Please reference ETKA using the VIN of the subject vehicle to ensure that the correct valve is being ordered. Part Number Part Description Quantity. 4H0121670A Solenoid valve 1 4H0121671D Solenoid valve 1 . Additional Information . All parts and service references provided in this TSB (2033806) are subject to change and/or removal. Always Code: Address 01: Engine (03L 906 018 LB) 15:46:01 IDE00021 Engine RPM 2500 /min IDE00188 Fuel high-pressure: actual value 722600 hPa IDE00201 High fuel pressure: specified value 722100 hPa IDE00475 Fuel Pressure Regulator Valve 31.43 % IDE00476 Fuel Metering Valve 34.43 %. Dec 3, 2020 #6. Received 12 Likes on 7 Posts. 2014 A6 3.0l PCV valve. Hi Gang, I was never any good at searching for stuff with key words. Can anyone point me to any guide on replacing my PCV valve? Just came back from the dealer and they said it was bad. I have had no warning lamps come on yet. Kind of spendy from the dealer and I am pretty sure I can do it. 2. Every thing around the turbo,you need to get down to the egr valve above the egr cooler. 3. After you need to remove the screws from exhaust pipe to the dpf,and the screws from egr cooler to dpf. 4. You need to put the DPF also out,otherwise its not possible to get the egr cooler out of the car. I5dDz.

audi a6 c7 egr valve location