Audi C7 CWA-100 Coolant Pump Upgrade DIY

This is a pretty easy install, but make sure you watch the entire video. The very last part is specifically about the wiring harness adapter and you will want to watch that. Let us know if you have any questions!

One thing to note that I didn't cover in the video is that when you disconnect the PWM wire, it will throw a soft code under Engine Faults. Don't be alarmed when you see that in your scan.

[AudiCOwners]

One thing to note that I didn't cover in the video is that when you disconnect the PWM wire, it will throw a soft code under Engine Faults. Don't be alarmed when you see that in your scan.

[DR-zlct]

Hey just so you know, the top black plastic on the pumps can be rotated however needed via the four torx screws. You can leave the bracket in the spot that it fits correctly, and rotate the top plastic portion of the pump so the discharge is facing whatever way is needed.

[dylandalka]

I know it’s 2 years but your videos help me out so much. I appreciate all the knowledge

[spondev]

Hi, could you post the results of your testing the cwa-100 pump? Did it lower IAT's?

[Minecraftcrave]

As a c7 owner your channel is a blessing

[commie]

I'm insanely jealous of your garage. Nice job, been following you on the merc racing thread on AZ and this seems like a simple upgrade for people with upgraded coolant capacity, especially as big as the merc 4.0T hx.

[diyundercover]

It's a really great video.
As the owner of the C6.5 3.0TFSI, I confirmed that there is an auxiliary cooler in a similar location. However, the C6.5 can only be accessed by removing the bumper.
I have a question.
Can you explain to us in detail the role of the auxiliary cooler?

[michaelkeenan]

I bet if you wanted to get the wiring harness and outlets in the factory location, you could unbolt the top (looks like 4) screws and just re index the outlets clockwise one position.

[karimowhite]

where can i get the connectors to make a cable

[조병철-xf]

What Fuse did the pump relay connect to?

[sametoruc]

Have you got the part number for stock (original) Coolant pump? I just received yellow engine light and fault code: P19000 Coolant Pump, mechanical malfunction! Thanks

[Mrslammedb]

Great video!! If I want to keep the pump running all the time, can I just cut the wire? Or do I have to unpin it?

[ingegneriafacile]

Hello, Great DIY. Does make sense to change the pump with a stock radiator?

[MrMitch]

Please Help!!! I have a 2013 Audi A7 I hit a opossum last night going about 65 MPH busted my front bumper and it ripped the 3 pin connector out of my coolant pump. I purchased a new 3 pin connector each pin is numbered 1 2 3 but the wires are solid black. I have 3 wires dangling from the harness that goes to the pump the colors are solid RED, solid VIOLET, and RED with a WHITE stripe. Does anyone know what color goes to each specific pin Any help would be greatly appreciated.

[stevepryce]

Very good video! I was just wondering do you think this can make a difference on the 4.0T?

[kylepa]

In the event the OEM pump in this location fails, could it result in a coolant leak toward the front of the engine?

[alefmenas]

Hi. Regards from Brazil! I have an Audi A6 C7

Congrats for the Channel, greats contents!

My car broked Supercharger pump aditional and I bought a supercharger pump CWA 50 but with 4 pins and original is 3 pin. Is possible to conect? I have not sucess yet.

[bads]

Hey man! So i installed my cwa100-3 today. I had the pump mod done on my cwa50 to run at 100%... i actually put it on a switch. Well today when testing the 100 out, i noticed really high temps, i flipped my switch back so the pwm wire would be active and it cooled alot better.... 20° over ambiet vs 30.... have you heard of any wonky wiring when adding the cwa100 to b8.5 s4's? Not sure why the cooling wouldnt be as good with the pwm wire cut vs not cut.

[Constantine_UA]

Hi, thank you so much for your channel and everything you doing) I have a question: is there any sense to upgrade to ECW150 instead of ECW100 ?

[crisiac]

Hello from Romania! Is this the famous intercooler auxiliary pump? I have changed 2 pumps so far but it is not this one, it is the other one that is made of 100 total plastic and I still have the error. Could it be that you changed the wrong pump? I have an A6 C7 2016. Thank you