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Car Forum / Jaguar Cars / August 2004

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XJS V12 - the right car for me?

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Dan Roberts - 11 Jul 2004 19:18 GMT
Hi all, sure you get this all the time, but was hoping for a little buying
advice.

I'm thinking about getting an XJS V12 (5.3 HE version). It would be my only
car and thus a daily driver. I don't cover that many miles, about 10 miles
each way to work each day and maybe 20-40 over the weekend. I've owned a
couple of US V8's so am used to not getting great fuel economy. Have checked
the insurance and it's cheaper than my last Firebird so that's not an issue
either.

I've asked on the uk.rec.cars.modifications newsgroup as it's one of the
busier UK car groups with a lot of people who seem to have owned every car
going. I've received more or less unanimously negative feedback. Much of
this was from former XJS V12 owners who say they would never own another one
due to reliability problems and upkeep costs. I was also told by one owner
that he averaged 9mpg, 12 at best. I've been reading figures more like 15mpg
average on the Net - any comments on that from owners here?

So what I'd like to ask this group is, can a XJS V12 really be a viable
daily driver car that won't be a constant source of misery in terms of
reliability? I would be looking at getting an early 90's model, post
facelift. I've seen a nice example for ?3k with 102k miles on it, but have
been told that this is far too cheap for a decent example?

I'm 22 and single with no financial commitments, so this seems like the time
in my life to buy completely impractical cars ;-) I'm no mechanic but happy
to have a go at things with a spanner and a good reference book. Would be
happy to do my own servicing and anything else which isn't too complicated.

If the V12 is a no go, would I be any better off going for the 4.0 6
cylinder? From what I hear, a lot of the problems is with the brake and
suspension systems rather than just the engine, so aside from fuel costs and
double the number of spark plugs at each service, are they much of a better
buy than the V12?

Thanks in advance for any help,
Dan
Pam and Chris - 11 Jul 2004 21:23 GMT
Truthfully? sounds like a bad idea. Ppl who love these cars, (and they do
exist!) would highly recommend having a back up vehicle. These cars are very
high maintenance and complicated. I strongly suggest you do some reading
over at www.jag-lovers.org before you make any final decisions.

> Hi all, sure you get this all the time, but was hoping for a little buying
> advice.
[quoted text clipped - 33 lines]
> Thanks in advance for any help,
> Dan
andrew.walker70 - 14 Jul 2004 20:00 GMT
I would stick with the XJS 5.3 - my father had a convertible and it had a
lovely engine - but if it's the coupe version you're after - well yes you
can get 15-19 mpg out of one - but maintenance is NOT cheap, if you cant
stretch to the main dealers - surely there must be a reputable Jaguar
independent specialist who can do the work for half the price of a main
dealer - forget the 6.0 version (the later car) - it would burn a hole in
your wallet - you would get bankrupt driving one every day, if you cant get
either then the 3.6 /4.0 are the ones to go for.  Forget the one with
100,000 miles on it - ?3,000 sounds like a car without history - and if it
had any rust on the sills, I would walk well away from it - you have been
warned.
> Truthfully? sounds like a bad idea. Ppl who love these cars, (and they do
> exist!) would highly recommend having a back up vehicle. These cars are very
[quoted text clipped - 48 lines]
> > Thanks in advance for any help,
> > Dan
Nick Bennett - 15 Jul 2004 19:49 GMT
I drove an XJS convertible for 2 1/2 years as a daily driver, it had 75,000
when I bought the car and 94,000 when I sold it. It never broke down and I
always kept it fully serviced every 3,000 miles. The costs for servicing by
a 3rd party were always reasonable and labour was charged at ?40 per hour.
NEVER FORGET this is a ?45,000 motor car so why on earth people think he can
run them cheaply is beyond me. Saying that, parts are very reasonable and
there is a very good supply of second hand and recon parts.

Bits to watch out for are sagging springs and worn shocks ( there are 6 on
an XJS ) make sure that all the bushes are servicable. Regular brake
maintenance is a must, especially on the inboard rears. the front brakes get
very hot due to the weight and warped discs is common, get them done
straight away as they can take out wheel bearings and knacker your brake
callipers. New discs are around ?25, callipers ?120 exchange and wheels
bearings ?18, How cheap do you want ??  Steering racks do pack up but should
be less than ?500 to replace, it seems they are good for 50K anything more
is a bonus. If your exhaust is gone get a stainless unit, they are ?100 more
than the mild steel.

The point of the 3,000 miles service was that the car got regularly checked
and as soon as any problems showed up they were dealt with. It is also very
important to keep the oil clean and ensure that the water level is right in
the rad with correct % anti freeze.

As long as you find a car that is in good condition and has full service
history showing that the previous owners cared then you should be onto a
good thing.

My car cost me less than ?1000 per year to maintain and that includes
rubber. It did as low as 4mpg (142mph through Belgium) and returned as high
as 23mpg. If you want to lead foot it then its going to hit your wallet, I
got average 17mpg.

I now drive an XK8 and that brings in an average of 21mpg  , I have had 31
and 16 ( ouch! ). Although it is a fantastic machine there is nothing like
the drive an a well set up XJS V12, possible one of the worlds finest
touring coupes.

Nick
Signature

Tin Paradise
www.tinparadise.com

Ron the Barbarian - 11 Jul 2004 22:09 GMT
> Hi all, sure you get this all the time, but was hoping for a little
> buying advice.
[quoted text clipped - 36 lines]
> Thanks in advance for any help,
> Dan

Dan,

You will not get this kind of advice too often.  I have a freind in our
Jaguar Drivers Club, who has the best, most reliable XJS on the planet
:-)

What he did was remove the fuel tank, computer, injectors, anti polution
gear, most of the wiring and associated switches/sensors, and fitted a
BIG LPG tank in the back, a LPG venturie on both inlet manifolds with a
simple LPG mixer.

The car starts immediately evry day, uses the same amount of gas, rarely
requires tuning and cannot catch on fire.  It is VERY simple to fix as it
has no electrical crap on it :-)

He loves it, fast, smooth and VERY reliable.

Ron
George Bray - 25 Jul 2004 20:35 GMT
Ron the Barbarian <Newsguy> wrote in message
> What he did was remove the fuel tank, computer, injectors, anti polution
> gear, most of the wiring and associated switches/sensors, and fitted a
> BIG LPG tank in the back, a LPG venturie on both inlet manifolds with a
> simple LPG mixer.

Ron
Sounds good. Do you know if there's a write-up on the Internet for
this conversion, or any other reasonably accessible source of
information? I would consider taking similar radical action on my XJS
for the air con system if it ever packs up and I can't diagnose and/or
repair the electronic control systems.

Dan
As to your original question, I'd strongly recommend you register at
jag-lovers.org in order to read dozens, or perhaps even hundreds, of
responses to many people asking much the same question over several
years.

I have an XJS 3.6 and bought it (13 years ago) in preference to a V12
because I preferred the driving 'feel', it's cheaper to run and
there's less to worry about if anything goes wrong with the engine.
Even changing the spark plugs on a V12 takes several hours and many
people unbolt the air con compressor, to move it out of the way! But
the engines seldom go wrong. In my opinion the two greatest weaknesses
are rust and the air con system. And other tricky jobs, like changing
the handbrake pads, which can also take hours if not days. But most
people who have those cars, love them. So check jag-lovers.org

Regards
George
Ron the Barbarian - 25 Jul 2004 21:24 GMT
> Ron the Barbarian <Newsguy> wrote in message
>> What he did was remove the fuel tank, computer, injectors, anti
[quoted text clipped - 6 lines]
> this conversion, or any other reasonably accessible source of
> information?

Not that I know of.  
T.G. Lambach - 12 Jul 2004 01:35 GMT
Generic advice: Don't, you have other ways to spend your time and money.

This is a complicated car and its old; you are not an experienced
mechanic. Parts for this specialty (low volume) car often have no
secondary  sources so it's always the dealer and their monopoly.
Contrary to what we would like to believe, expensive cars' deep down
innards are no "better" than most cars - sure the leather is nicer, the
seats more comfortable etc. but luxury cars are about having more
"stuff" that will eventually break.

Remember, old cars don't get a senior discount. And a "cheap" luxury car
is something to avoid for the cost of correcting its deferred
maintenance is more than the discount at purchase time.
David Betts - 12 Jul 2004 08:11 GMT
>Hi all, sure you get this all the time, but was hoping for a little buying
>advice.

You will almost certainly get a lot of negative advice here. (They are
a miserable bunch <g>.) Most of it can be ignored. Properly looked
after XJSs are just as reliable as any other car of that age and the
country is crawling with Jaguar specialists. Plenty of people use them
every day, have them serviced once a year and don't spend a fortune
doing so.

Parts availability on these cars, which were mass produced in large
numbers, is not a problem. Once again, there are numerous specialists
and you can still get plenty of bits from breakers if you are on a
budget. The engine shouldn't be a problem as long as it hasn't been
allowed to overheat. Electrics may be a nuisance, but nothing to get
too excited about.

Don't forget that consumables - and that means things like brakes and
tyres, shock absorbers, suspension bushes, etc. - are going to be very
expensive. It is, after all, a big, fast, heavy car. Biggest concern,
as always, is going to be rust. Check absolutely everywhere before you
buy. Better still, get a Jaguar specialist to check it over for you.

Enjoy.

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Dsybok - 13 Jul 2004 16:41 GMT
The key is getting a properly looked after one. Sure , they are great cars
when they are in top condition, but because they are so cheap right now, you
are going to find a lot of them with blown out mechanicals that werent cared
for, and have been driven into the ground.

A lot of young punks, no offense intended, buy them cheap, beat the hell out
of them and sell them cheap. You would be well advised to look hard for a
good one, with full books and papers and then have it inspected by a Jaguar
specific mechanic prior to purchase. That is the only way to get a top car
which you will be able to enjoy without worrying if its going to start the
next day.

I have both a 12 cylinder in my sedan and a 4.0 AJ16 in my XJS and I love
both, they each have their strengths and each has a different feel but both
are fantastic engines. I average 13 MPG in the heavier XJ12, but XJSs get a
little better than that.

Daniel
1994 XJ12
1995 XJS 4.0

> Hi all, sure you get this all the time, but was hoping for a little buying
> advice.
[quoted text clipped - 33 lines]
> Thanks in advance for any help,
> Dan
Fraser Johnston - 27 Jul 2004 07:29 GMT
> Hi all, sure you get this all the time, but was hoping for a little buying
> advice.
[quoted text clipped - 33 lines]
> Thanks in advance for any help,
> Dan

Don't do it.  Besides being a gas guzzling pig they break down with
startling regularity.

Fraser
762423 - 01 Aug 2004 18:37 GMT
> Don't do it.  Besides being a gas guzzling pig they break down with
> startling regularity.

I've owned my '88 5.3l for 5 years.  It's my daily driver.  It has never -
ever - broken down.  Period.

Fuel economy is the same as my '04 Mercury Mountaineer - about 13-14mpg.

Regards
 
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