Whenever I look up coolant tanks, I tend to get multiple part numbers. The two I see the most often is W0133-1898060 and W0133-1811785. Anyone know which is correct? Also, is there a how to anywhere of how to change it? (I've searched)

 

I ordered the 85 one when mine broke and it was the exact OEM one. It actually came in a Genuine Jaguar parts box. So I would go with that one just to be safe. It is very easy to change. You remove the hoses on top then undo the 8 or 10mm bolt on top then move it enough to get access to the bottom where you can remove the overflow sensor plug and there will be a metal clip on the bottom hose you can use a flat head screw driver and pull the clip to unlock it from the tank and then just pull the hose off. I'll have to dig around cause I think I actually have this process on video. If I find it I'll try and get it up this weekend.

 

Here you go it must not of been in the FAQ section but this post has some good pics. Post 16 has a good pic of the clip I'm talking about and there is some good discussion on how to do it in case you need it done before I can find my footage. This discussion is about the non supercharged overflow but they are attached pretty much the same way the only differences are the size and shape and there is an extra hose. I have done both so I know for sure the clips are the same.
https://www.jaguarforums.com/forum/s...lacment-52090/

 

Really watch out for that wire retained connection on the bottom of the tank!! It's keyed, you push it in, then snap the retainer on. Easy said than done. Pull it back to test the connection. It's very tight in there.

Another STR guy did not get this on right. It blew out and dumped so much coolant so fast that he roasted the motor.
The sensor in the tank is your low coolant sensor.
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And also the self destruct button it would seem ...

Just lovely.

 

Will W0133-1811785 work for an 03 Type r?

 

Thanks all, well to follow up I had already of ordered the W0133-1898060 and it's on it's way, I guess I'll see if it fits and if not order the 85er...

 

If it doesnt fit yours and fits an 03 ill send you $ for it.