just out of curiosity does the car need to be running and in p before activate the pump prime thanks

Having done this myself. A few notes for anyone reading comments deep enough to get here: I had no slack in the cable for the pump and I couldnt remove the plug for the haldex co trip unit so I had to remove it using t30 torx bits. It’s not easy to reach these, so check you can either remove plug before going ahead or make sure you have the tools to reach these t30/10mm bolts that hood it on. Once out you can use a screwdriver to pop the plug off by pushing from within the small hole on the plug. When refitting the pump, you need to return the wiring. It’s easier to return the wiring and ready up the clips before pushing the pump back in. Using OBDEleven, the pump priming option is found in All Wheel Drive and then Basic Settings. For it to work the engine needs to be running. I ran the pump twice and got a decent bit extra in, nearly 100ml. The main problem with this job is reaching bolts and plugs. I had loads of sludge on the filter at 29k , but the oil wasn’t that bad looking and I hadn’t notice any ill effects. Glad to have done it tho! Will be interesting to discover if the sludge returns when I do it again.

Would you also need to service the front differential? If so how often or are these done together?

Go to awd, live data, and just search for temp, and you’ll see a few pop up. I am still not sure which is the best one, but they were all pretty close anyway.

@@EVERYTHINGcpo Excellent, thank you. Will check that. And priming the pump? Where/how did you do that?

@@stephankaeser8939 I think it was all wheel drive > adaptations > pump motor

@@EVERYTHINGcpoAwesome, thank you. I should find it.

Awesome. Do you prime yours or just fill it and go?

@@EVERYTHINGcpo I use my OBD11, reset adaptation, prime, top off, and prime.

You might be able to use the OBD11 to monitor the pump current. In another video, they found that the pump current was much reduced after cleaning a very gunked up screen. So, you might be able to check it periodically to see whether the required current is increasing, which might imply a contaminated screen.

I believe haldex is only on AWD systems, so not applicable to GTI

Ummm OBDEleven is in fact the name of the product. Sorry to disappoint you. amzn.to/3y9NQyl

@@EVERYTHINGcpo probably a product name, but the interface is called obd2 / obdII (with roman #s). Your video was very useful, jut the obd name correction.

@@eleazarcassis2870 I was telling you the name of the product and app I was using, not the interface - in the same way I didn't use the term can bus to describe how communication happens between the app and the car. I assume you don't have an OBDEleven yet. I highly recommended is. It opens up so many options on the car. :-)

@@eleazarcassis2870 And to just make sure we are 100% on the same page… not once in this video did I ever reference the OBD2 port. Not a single time. I don't know what you think you heard, but now that you know that OBDEleven is the name of a product, I think you’ll hear it correctly. I also mentioned VCDS, which is another product (that I don't have) that could accomplish this task. But again, never mentioned the port. 😎

He quite clearly states what OBDEleven is - you watched 14 seconds and decided to be a know it all. You might want to check this guy’s channel - he knows a ton about his Golf R and available products to use to service it.