2015年5月26日 · *Replace N509 solenoid and reinstall. *Ensure everything is closed up on coolant system. *Attach coolant refill/air purge tools and follow instructions provided.

Coolant Control Valve - Solenoid (VEMO) for Transmission Cooler N82/N509/N488 for Audi C7 A6-A7, B8 allroad-Q5, A3-Q3-TT, D4 A8-S8, Q7, Q8 and C7 S6-S7-RS7 w 4.2l, 2.0t, 3.0t and 4.0t ...more.

2018年11月27日 · Trying to chase down this code at the moment. Getting conflicting information as I Google search it. I looked at the Ross Tech wiki on this code. http://wiki.ross-tech.com/wiki/index.php/P2753 And it references possible causes as valve N82, N509, or N488 and possibly their wire harnesses.

2019年5月16日 · Typically, what fails is not the auxiliary but the transmission coolant valve (N509). You can only access it from under the car. I have attached instructions and a diagram of where it is.

N509, or N488 reveals the presence of coolant inside the electrical connector as shown in the illustration (Figure 1). Figure 1. Coolant residue in the connector housing of the coolant regulating valve. Page 2 of 5 © 2013 Audi of America, Inc. All rights reserved.

For 2011-2024 Audi vehicles, TPI 2033806 suggests checking/replacing N82, N509, or N488 as needed in addition to any damaged harnesses. Inspect ECM, TCM and HVAC connections for corroded terminals. https://static.nhtsa.gov/odi/tsbs/2015/SB-10058574-8951.pdf NHTSA

2020年10月30日 · Until very recently I had MIL on and VCDS showed a few fault codes under 01 engine regarding shorted wires. Traced them down and found faulty coolant valves (N488 and N509) that leaked coolant and damaged connecting wires. Spent about $800 on the repair.

2022年4月2日 · The dealer will most certainly bend you over backwards on this repair. I believe this is known as the N509 valve. It’s located under the car kinda on the firewall on the driver side. It controls coolant flow to the transmission cooler. Typically the seal fails and coolant floods the electrical connector.

2015年8月25日 · NPB trans, looks to have a N509 Gearbox oil cooling valve. Can be mounted on the subframe or at the transmission housing. Just 2 wires for the N509, but wire color can vary.

View and Download Audi A8 2019 service training online. Introduction. A8 2019 automobile pdf manual download.