Will soon be coming up on 100k, what should my next service consist of? I'm looking for parts and part numbers if possible.
Thinking I want to:

Change the oil - whats the top two I should consider
Change the plugs - again which ones best
Change filters - Fuel (is there only one?), Oil, pollen, already have KnN's installed
Anything else?
Thanks guys

 

100k miles service is "the big one", with all sorts of expensive stuff due or coming due.
Obviously engine oil and filter, approx 8 million threads here about the "correct" or "best" engine oil so I won't bother repeating them. Same with the oil filter, lots of perfectly good ones to choose from, 5 minute job to replace.
Air filters - easy job, but as you have K+N's just clean and re-oil them.
Check/clean the MAF sensors at the same time, 5 minute job to remove, clean (with proper MAF sensor cleaner spray) and replace.
Fuel filter - it's in the fuel tank and meant to be "for life", can be changed but a very expensive job, don't bother unless you have definitive proof it is blocked/clogged/not working as it should.
Spark plugs - yes, now due to be changed, a pig of a job to do though as they are very hard to get to and/or you need special tools. There are threads here about it, search is your friend!
Probably due for flush and replace coolant and brake fluid as well, both relatively easy and cheap.
Consider fitting a new supercharger drive belt and new ancillary drive belt.
Consider new timing chains (big expensive job!).
Consider new coolant pipes and tubes front and rear, another big expensive job, lots of threads here about this.
Consider new supercharger coupler/torsion isolator - you guessed it, lots of threads here!
Consider transmission drain, flush and fluid refill, definitely overdue if it has never been done before. Best to use the recommended ZF Lifeguard 6 or 8 fluid, depends on whether you have the 6 speed or 8 speed box, not cheap!
To get all of this done and done properly I don't think you would have any change out of 5,000 GBP.

 

O2 sensors, and rather than change just the fuel filter, I'd change the entire pump assembly. Brake and power steering fluid.

 

Thanks guys, great help!
After checking the long term and short term fuel trims I don't think there's much wrong with my O2 sensors, wouldn't hurt to clean the MAF sensors though.
Will also check to see if the gearbox has been done, this is around 70k on a ZF6 isn't it?

 

From memory ZF recommend the 6HP28 (if you have the 6 speed box that is what you will have) should be drained, flushed and refilled at 60k miles / 100k km. It's well overdue at 100k miles, but if it was done before you bought the car it should be OK for many miles yet. The main symptoms of needing new fluid are sluggish and/or jerky changes, especially down changes.

 

I notice a service for £2500 @ 62k on my history, I will ring the garage tomorrow to see if this included the gearbox oil.

 

Turns out gearbox fluid was changed at 43K, bit early but oh well. When will this need doing now?

 

Here's the Jaguar recommended schedules for the XF:


(double click on the images to enlarge them)

Graham