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Discussion Starter #1
Got a 3.0L V6 Petrol...opened bonnet today to replace the air panel filter with a K&N one..and the engine didnt have one of those black covers/lids that I thought the XF's do? Is this normal?
 

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Not having any experience of the petrol variant I could not comment. Hopefully someone on the forum will be able to enlighten you.
 
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I suspect It should be similar to the S type - and that only had a cover over the RH cylinder bank, as the inlet manifold covers the LH one.
 

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I recall from the factory tour that the Petrol 3.0l looks so different and definitely did not have the 'black box' on the side as the 3.0D has, in fact it was that very difference that was pointed out by the tour guide for easy identification.... the 5.0l and the superchared 5.0l on the otherhand were just huge so they were easy to spot!

IIRC the manifold is exposed on the petrol where the 'black box' is placed on the diesel.
 

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Discussion Starter #5
MrPix said:
I recall from the factory tour that the Petrol 3.0l looks so different and definitely did not have the 'black box' on the side as the 3.0D has, in fact it was that very difference that was pointed out by the tour guide for easy identification.... the 5.0l and the superchared 5.0l on the otherhand were just huge so they were easy to spot!

IIRC the manifold is exposed on the petrol where the 'black box' is placed on the diesel.
oh ok. thanks for that. find it weird though.
 

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I'd imagine it does not need one as the petrol engine is quieter than the diesel. Jaguar keeping the costs down...
 

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Chandru
Looking at the workshop manual the 3.0 petrol does not have an engine cover as does the diesel variant.

The air filter also does not have the extended top as the diesel, a picture of your air filter cover attached

Cheers[attachment=0:3q44br3c]LoadAssetCAQJ9HKU.jpg[/attachment:3q44br3c]
 

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Discussion Starter #8
womea said:
Chandru
Looking at the workshop manual the 3.0 petrol does not have an engine cover as does the diesel variant.

The air filter also does not have the extended top as the diesel, a picture of your air filter cover attached

Cheers[attachment=0:3kshe050]LoadAssetCAQJ9HKU.jpg[/attachment:3kshe050]
thanks womea. where did u get the pic from?
 

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Re: engine cover - jaguar technical info

You can get info such as workshop manuals, but it is a site requiring registration and info is on a subscription basis, which is quite expensive unless you are dealer working on these cars all the time. You can also target your car and year and take out a days subscription and download/print your required info.

I have found it useful when fitting accessories etc.

I was working on a S type so had the subscription open for all models so had a look at your question.

http://www.jaguartechinfo.com

Cheers
 

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XF Engine Cover - like Merc/BMW

Have you noticed that Mercs/BMWs have this rather nice and aesthetic engine bay cover when you open the hood (or bonnet depending which part of the world you are)... my XF V6 petrol doesn't have one... any clue if this is the way it is supposed to be? I like seeing a nice engine when the hood is open... but this is embarrassing!
 

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Have you noticed that Mercs/BMWs have this rather nice and aesthetic engine bay cover when you open the hood (or bonnet depending which part of the world you are)... my XF V6 petrol doesn't have one... any clue if this is the way it is supposed to be? I like seeing a nice engine when the hood is open... but this is embarrassing!
Let's see a picture of yours and we will show you ours :D


Jaguar XF Diesel

 

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Replacing the engine cover

Have had my car for about a week now and curiousity finally got the better of me so I pulled the plastic engine cover off to see what the engine looked like underneath. Well after a few minutes of examining the plastic intake runners and head covers, I decided enough was enough and started to replace the cover. What I learned was that looking under the plastic engine cover is punishable by 30 minutes of extreme frustratioin while fumbling around trying to get the cover back on. Which, if unsuccessful, requires you to go to the dealer and, after admitting you looked under the cover, pleading with them to put it back and offering your solemn promise to never to do it again.:roll:

As it turned out I finally did get the cover back in place but I have to believe there is some secret method, known only to a chosen few, of putting the $?&@ thing back on. Anyone care to share the secret should I decide, in a moment of weakness, to look under the cover again ?
 
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I did the same with my Defender last summer....and I kid you not it took me an hour or so to figure out how to get it back on again....I eventually sussed it out....and it was back in place in seconds.
 

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Have you noticed that Mercs/BMWs have this rather nice and aesthetic engine bay cover when you open the hood (or bonnet depending which part of the world you are)... my XF V6 petrol doesn't have one... any clue if this is the way it is supposed to be? I like seeing a nice engine when the hood is open... but this is embarrassing!
I thought - as an engineer - that the bonnet was for keeping the car aesthetically pleasing. If you have to go under the bonnet, it is usually because you have a reason other than just looking at it.:confused: It is a working piece of machinary and electrics under there, and has a job to do - other than look nice. ;)

My father is a car mechanic by trade, and he doesn't like all this ancilliary plastic moulds all over an engine. IMHO - I agree, I find a piece of working machined aluminium or steel better looking than just a piece of blow moulded or injection moulded plastic. What skill is there in a piece of plastic? A working engine that you can see, precision engineered with close tolerances, purring under the bonnet - that what I like.:D
 

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Have had my car for about a week now and curiousity finally got the better of me so I pulled the plastic engine cover off to see what the engine looked like underneath. Well after a few minutes of examining the plastic intake runners and head covers, I decided enough was enough and started to replace the cover. What I learned was that looking under the plastic engine cover is punishable by 30 minutes of extreme frustratioin while fumbling around trying to get the cover back on. Which, if unsuccessful, requires you to go to the dealer and, after admitting you looked under the cover, pleading with them to put it back and offering your solemn promise to never to do it again.:roll:

As it turned out I finally did get the cover back in place but I have to believe there is some secret method, known only to a chosen few, of putting the $?&@ thing back on. Anyone care to share the secret should I decide, in a moment of weakness, to look under the cover again ?
I can remove and replace my engine cover in about 30 seconds. :cool::ugeek::D
 
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Of all the engine covers I've removed, the XF's is by far the easiest. No screws, bolts or clips, it just pops off & back on again. How can it be difficult?:confused:
 

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Of all the engine covers I've removed, the XF's is by far the easiest. No screws, bolts or clips, it just pops off & back on again. How can it be difficult?:confused:
As your engine is a diesel and mine is the gasoline feed 5.0 L I suspect the covers are different. ( Should have mentioned engine type in my post. Don't get diesels in the USA market. ) There is very little clearance between the top of the engine and the fire wall where the cover slids into the receiver pins designed to accept the cutouts on the back of the cover. Unless they can be inserted correctly, the cover will not slide back far enough to allow you to pop the rubber lined attachment points into the 2 ball topped receiving posts. Guess I should post my question on the the US forum.
 

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to replace the air panel filter with a K&N one..
Hi Chandru, I know this isn't what you want to hear but I was advised by DMS automotive in Southampton who are a specialist in engine tuning who warned against the use of the K&N oil air filters. The oil slowly comes off the filters and enters the engine. The oxygen sensors get coated in the oil and start to give incorrect readings which can actually slow the engine. The outcome is to replace the oxygen sensors with fresh ones. The limitation of the engine appears not to be the oxygen intake anyway, so the standard paper filters are the best bet.

I had fitted a pair of K&N filters and was subsequently scared back into a pair of paper ones after being told off by DMS engineer!
 

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its a shame that the petrol engine doesn't have the cover. one of the wow factors for me when i first looked under the bonnet was the cover. but i guess the best reason given above is the noise levels not requiring it. yet another reason not to buy the 3.0lt petrol !!
 
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