I've been doing a ton of searches but am getting different results with nothing concrete. Can someone please give me a quick definitive answer on what fluid I should use for the P/S and Brake systems on my '09 XFs/c?
The dealer says both are needing to be flushed and replaced (for $350/per service). This is something I can do myself, but I don't want to botch the fluid compatibility.

Brakes: I'm assuming a "Super DOT-4" (low viscosity) or "DOT 5.1" (NOT DOT-5 silicone based) would be fine.

Power steering: It was darker "green" when I sampled it (not red like ATF or clear like "standard" power steering fluid). Level is fine, so no leaks present, and I've never heard of a PS pump burning the fluid and making it change color. Is this a pentosin CHF11s type hydraulic fluid?

When I google search "'09 Jaguar XF power steering fluid", I consistantly get two hits for Prestone and Beck Arnley fluids that claim "for all CHF11s European systems - including Jaguar, Mercedes, Audi, BMW".

If it is CHF11s, that would be awesome since I have 3 sealed Litres of MB Pentosin that I used for my Mercedes ABC suspension hydraulics and steering system.
I just don't want to be mixing a Dex III/IV steering fluid into a pentosin system (I don't think they get along).

Thanks again guys!!

What does the manual say? Usually the owners manual will list the fluids. I haven't had to change any (except oil) yet so I haven't looked. When I leave work in an hour I'll take a look.

I can't but the Jaguar Owner's Handbook (JJM 18 02 40 901) for the 2010 MY US specification gives the following:




BRAKE FLUID
Shell DOT4 ESL is preferred. If unavailable, a low viscosity brake fluid that meets ISO 4925 specification may be used.

POWER STEERING FLUID
Mobil ATF320 PAS fluid is preferred. If unavailable, a fluid meeting Dexron III specification may be used.

Graham

That would lead one to believe they are using ATF (Dextron III) for power steering fluid.

Here is a post on the brake fluid:
https://www.jaguarforums.com/forum/g...ss-6-a-100370/

Castrol sells a variant that meets that ISO spec:
http://www.castrol.com/castrol/secti...tentId=7081185

The word 'preferred' would lead me to believe they are using Mobil ATF320 PAS fluid.

Graham

Thanks for the quick responses guys! Looks like I'll start looking for Mobil ATF320 PAS.