I was wondering what exactly is needed for a quick simple tune up
obviously need the plugs.. I see alot of places recommend the iridium plugs ..

also need the ignition coil things ..

other than that what else is needed? I see some parts stores show we need the cool boots while some don't even list them for a 2012 XF portfolio

and some show knock sensors while some don't list them

can someone give me a quick run down of what's exactly needed

thanks tried searching and not much came up for the x250 2012

 

I assume you have the 5.0 V8 either NA or SC but I guess NA.
Plenty of sets of eight ignition coils listed for sale on eBay Motors around the $90 to $120 range, just search eBay Motors for "Jaguar 5.0 ignition coils"
For spark plugs yes you want Iridium which are/were OEM anyway and best to get NGK.
However the OEM plugs are rated for at least 100,000 miles and most last 150,000 miles with no problems so do you really need new plugs?
The only other thing that might be needed for a quick simple tune up is new fuel injectors as the originals might be getting a bit dodgy by now, but you need to get OEM and a set of eight ain't cheap and the old ones can be a bear to remove as they commonly stick like crazy in the head due to burnt on carbon deposits.

 

yea 5.0 NA

Aahh so maybe not new plugs because dim barely getting to the 90k mark..maybe just take em out and give em a good clean?
how about the coil packs? do those need to be replaced if all else is good as well?

so maybe just the injectors then ?
I just have it in my mind that I need to do the plugs and everything which now just maybe the injectors.. I mean I don't plan on having the car much longer..maybe several more months to a year

 

Are you having any problems?
Unless you have codes I would not change anything yet.

The plugs and injectors are not that easy to change and as posted above Jaguar recommends 100K plug changes and your still under that.

If you want to do maintenance I would recommend replacing the failure prone plastic cooling parts with the Aluminum versions as that's probably the weak spot in these cars. Oops sorry! I saw you have the 5.0L NA engine and so far there is no Aluminum replacements! But watch your coolant and oil levels closely and do check them regularly.
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actually no, no codes or anything to that effect

I have noticed sluggish performance and acceleration on the car and a little worse gas mileage that's why I was gonna do the tune

well I did order from rock auto the injectors, but I figured while all that stuff is off the engine might as well replace the plugs and coils as well...
damn comes out to right at 1k

my mechanic bud is gonna charge me 250 for the work but I'm basically gonna do it myself to I guess get the experience

but I'm probably keeping the car for about a year ... I love the jag but dang now it's all the cosmetic stuff that's giving me a pain in the azz and it's a out as expensive to fix that that mechanical stuff

 

First has he ever worked on a Jaguar especially these late model DI engines? They are MUCH different than what came before.

Does he know the injectors tend to be a "bitch" to get out? Does he have the correct slide hammer to get them hammered out?
Does he know that it is very common to hammer on that slide hammer hundreds of times per EACH injector to get them out?
Is he aware that if the injector is too tight he will snap the top of the injector off and then have a massive project getting the stub piece out of the head?
This sometimes leads to removing the head or even the entire engine to get the part out.

What I trying to convince you of is don't get stated on something that's not a problem!
I do recommend and use BG injector cleaner from time to time. But it is expensive magic juice and I can't tell any difference before and after but might be worth a try? Simple as you just pour it in the tank.

If you are having cosmetic problems post them and see if you can get any help?
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yes sir ty for that advice
yea before I even told him any further details he told me all those exact same things that it's a bitch lol well tedious was his word and he did explain all that with the slide etc .. I'm pretty confident he's worked on everything from vettes to jags and all in-between

It was just in my head I needed this because in my small town driving I. ircied the drop in performance and now that I moved to the big city I wanted to keep it in top shape

I'll try and post pics of the cosmetics when I can


thanks for all y'all's help,I nfo and advice I appreciate fellas

oh and I purchased Bosch injectors, and the ngk iridium plugs and the coils rock auto had there listed

 

Hey great idea to stay ahead of problems and maintenance and I am right with you. Just don't want to see someone with no problems jump in and start changing things without any codes to back it up.

But how about focusing on some additional fluid changes if you do want to do something?
The rear diff, transmission, PS fluid and probably the engine coolant (Jaguar has a 10 year life for coolant and your car is now a bit over 10 years old?) Rubber coolant hoses are suspect at this age too. In fact if you have not changed the two leak prone plastic cooling tubes on the front of the engine I do think that would be a good proactive bit of maintenance. In fact maybe add the rear water manifold too? Not sure the NA version of the 5.0L has one or not? I think you do.

Have the cabin filter/engine air filters been changed?
Has the water pump been changed?

So I do think you have a good bit to do if your interested?
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yea just kinda wanted to have it run as smooth as possible for the next year or so that I'll ha e the car ..

fluid changes yes all taken care of when I changed brakes, did the brake fluid.. ps fluid ok yes sounds like a good idea.. of course oil and all filters have been changed

don't know if I have the rear manifold, possibly, but yes I've had the water pump changed out and all hoses etc swapped out and last check at dealer they stayed everything was good.

I do want to the the differential fluid next .. I didn't know we could do the transmission.. thought it was sealed and didn't need service
​​​​​​but all good ideas to keep everything in tiptop shape(mostly) for a 10+ yr old car

 

The auto trans fluid being "for life" is BS and always has been.
JLR really mean "for the life of the new car warranty" but they dare not say that.
ZF themselves recommend a fluid change every 60,000 or 70,000 miles.
Lots of debate over whether the auto trans should be power flushed or not, one side says it's too risky if the fluid is too old (say over 80,000 miles) as that may dislodge particles of sludge, clutch material, dirt, metal etc and cause serious damage to the 'box, the other side says it's OK as long as the fluid isn't too old and it's a "gentle" flush. Most recommend a simple drain and refill with the correct spec fluid (Lifeguard 6 but there are perfectly good alternatives these days) and a new undertray which contains the filter.

 

yes I thought about that as well
I think, but not sure(need to look at service records/receipts), but I need to check if they already did that when the dealership found a small leak in the pan before, or well several leaks during a routine 40 pt inspection...think the pan was replaced and fluid filled ...but yea need to confirm that ...