Hey, so my Jaguar just got the coolant level low light.

After some forum searching I'm probably gonna replace the tank/the float.
Can someone tell me what's the proper fluid to fill it with?

Can't seem to find it around here, thanks in advance!

 

It is always helpful to provide the MY and other vehicle details when requesting help from the forum.

The vehicle Owner's Manual indicates the correct coolant to use that meets Jaguar specifications. Avoid mixing different types (colours) of coolant and be sure to properly bleed the system to removed any air that may be present.

 

Yep, check the manual.

 

Most likely is the water pump. They go v frequently on these cars - mine went around 30k miles. Many sooner than that. Easy to check if it's leaking there - look for the white residue (or actual damp). Get it checked as when it completely fails you're stranded...

 

Hey! My fault guys. It's a 2011 XF 5.0 NA .

I'll check the water pump, and I don't have the manual. I bought this car second hand in 2012.

Anyone know the coolant spec, please?

 

From the Owner's Handbook:
"Use only a 50% mix of water and antifreeze to specification WSS M97B44 (coloured orange) Extended Life Coolant."

 

You need the extended life coolant (usually colored orange and in a container with a bright orange cap), available from most or all of the name brands. Do NOT under any circumstances use the "regular" coolant you have been using for many years, no matter what brand.

 

This is the correct answer.

Colour by itself is not a reliable indicator.

 

I've never seen it any other color than orange or pink[B],,,Prestone Dex-cool will work and meets the specs..Be sure if you are mixing it, to use distilled water or you can get the pre-mixed (50/50)

 

Thanks guys!

I ordered from advance auto parts for $15. As opposed to the jaguar dealer which is $71



Anyone know the fluid for the rear differential?

 

This one is kind of specialized...I get it from the dealer

Castrol BOT 750B (1.25L)

 

I see.

I called them, they said they won't give me the specs, whether it's 75w-90 or 75w-140.

And they want $68 for 1 liter...
Kinda of insane, but I guess dealer it is!

 

On my 2006 S-type 4.2 with mileage in the teens, I get a low coolant message often at start up. The reading is false and goes away after a block or two of driving. I assume something is getting stuck causing the warning.

I have posted this in case you are correcting a problem that does not exist.

 

You know this is an XF forum right?..you might get more info from the S-type folks.

 

I use this one: Penrite 6 Year Anti-Freeze/Anti-Boil Concentrate - 5 Litre - Supercheap Auto Australia
Meets the Jag spec and only $55 AU (around $45 US) for 5 litres, so you should be able to get the correct spec coolant in the US for much the same price of $9 US per litre.

 

The Prestone premixed Dex-cool goes for $12.50/gallon from Amazon as an example..

 

If you look at the coolant level you may find that it is actually low when you start. As the engine warms up it expands and might then read as sufficiently full. Worth checking when the engine is cool and topping up towards the top of the min-max range to see if that fixes it

 

Yes.

Sorry I was not clear. I was not seeking help but rather offering it.

 

Thank you. I think it is more related to the angle at which I park.

 

It's going to be the lighter one for cars (75W 90) the 140 is more for load pulling trucks.
I use Redline shock proof synthetic in my E diff.