mat-mk3

Sorry, coolant temp I was talking about but just remembered I'm using MK3 vr6 clocks but I can't see them being much different. I have read some 1.8T people needing the resistor for the gauge to read correct but some don't also. I thought the Vr6 MFA came from the ECU? I have mine unplugged as obviously there is no where to plug it in now.

I had to put a resistor in for mine to read correctly. Will post up the size when I find it. Fishwick, is your MFA working? Where did you connect it up?

Regarding the aux water pump. There is a black/red wire in the T121 plug that runs this from the Mk4/5 ecu. What I did was remove this wire and run it to my MK3 VR6 fan controller aux output. So I'm running a VR6 fan controller for the fans and aux pump to the 4mo engine. All works fine and the aux pump runs for 10mins after ignition off. Fans work on all speeds also. ---------- Post added at 5:26 PM ---------- Previous post was at 5:25 PM ---------- Regarding the aux water pump. There is a black/red wire in the T121 plug that runs this from the Mk4/5 ecu. What I did was remove this wire and run it to my MK3 VR6 fan controller aux output. So I'm running a VR6 fan controller for the fans and aux pump to the 4mo engine. All works fine and the aux pump runs for 10mins after ignition off. Fans work on all speeds also.

Alright Ian! Finally got it in then? No idea why your plugs dont fit, did you get the loom and engine together? The engine side should be untouched really, only the ECU and car side to splice in. Have you removed the SAI? If you do you will need to get your ECU adapted to have the codes taken out and also a blanking plate in place of the valve on the back of the engine. I took the wiring out for mine and don't even have any relays in the engine bay. The brown/red near the ECU is the main ECU earth. I had to extend mine slightly to get to a good earth point as there is no earths near the ECU tray.

Mine was fine and I know a few others with them and had no problems, Luck of the draw I guess. Always use new gaskets for them. What's the other option though? Use the standard separate downpipes and customise the rest of it. Lots of money and how good it's your welding?

For the future, The dubpower R32 manifold fits the 2.8 24V just fine. Im not sure if it will fit in a corrado though as mine was in a MK2.

Sorry, I missed a number off the end! The correct number is 036103113A. I will edit the origional post so no one else mixes it up. This is what you are after. http://www.ecstuning.com/Volkswagen-Golf_III--VR6_12v/Engine/Cooling/ES274313/

Not really, No! Limited access so make sure you can remove most stuff out of the way. I gave it a tap on the very edge so it would spin and then try to pull it out just like the youtube videos show. What really happens is the whole plug moves backwards and then you waste an hour with mole grips and a screwdriver trying to turn it and pry it out! Just be carefull when you stick stuff into the hole though. Its the water jacket for the engine and obviously you dont want to drop anything in it or crack it. Edit, Oh putting the new one in is easy. I used a touch of silicone round the edge to stop and leaks and then find a nice socket to fit inside the plug and hammer it in. I got to plugs just to make sure i didnt mess the first one up. It only needs to go flush with the rest of the engine or about 1mm inside like the other plugs if you look around it.

Part number for the core plug is 036103113A, £1.75. This replaces the one on the front if you are moving the aux water pump. Cant quite remember the size of it, 36.5 or 37.5mm rings a bell. If you need any other numbers just shout, I have my VW invoices kept tidy

Hi All Just thought i would put this pic up of my MK2 24V Track car. I got alot of info from this thread and having never done anything like this before i was pleased how it went! Thanks to everyone for the help and info posted! It runs like a dream and sounds awesome!

I have all the MK3 fan controller & Aux pump setup and working at the moment. It looks like i have the loom etc for all the MK4 fan setup so should just be a case of plugging it in. (Never works like that!) Might have to stick with my MK3 VR clocks, I will see how it works now i have all the loom!

Thanks for your help. I would still keep my VR6 fancontroller so wouldnt this run the after run pump & fans? I thought these 2 looms were seperate anyway? Its going to be alot of work to get the MK4 clocks working and it is only a track car at the end of the day. The MK4 ones look too good though!

Hi All Im putting a MK4 4Motion engine into my MK2 Golf track car. I have most of this sussed but a couple of questions. The Thermostat housing, Im thinking of using the MK4 clocks but will these work with the VR housing? Or do the MK4 sensors fit the MK3 housing? Reason i ask is there are 3 plugs on the VR one, And only one i can see on my MK4 engine. If i fitted the VR housing will the MK4 sender fit in the front of it? I might just stick with my MK3 clocks so i can use all the senders as they are from the MK3 housing. Would this work? Cheers Mat

Many thanks, Just sent a couple of e-mails. I will let you know how i get on. Cheers Mat :)

For the Oil Pressure? I thought it needed to be VDO or would an Audi one do it? They seem to be even more expensive than a new VDO one.