Air conditioner condenser needs to be replaced on 1999 jag xk8. the new condenser requires new hoses which adds about 1400 to the cost. i was looking into buying the "old" condenser online so that hoses don't have to be replaced and repair shop said "all the condensers for that year were bad". your opinion?

SOURCE: 1999 Jaguar XJ8L repair manual

It's a very simple job.
Disconnect battery.
Disconnect electrical connector to MAF sensor.
Remove (unbolt) MAF from air duct.
Install new MAF.
Reconnect electrical connector.
Reconnect battery.
Finished!

SOURCE: Replacing Side view mirror cover on 1997 xj6

on the covers there is clips attached to them just put cover on top of mirror and push down until bottom clips in

SOURCE: broken part of soft top of Jaguar XK8 convertible 1999

hı thıs ıs cıhan pekın ıhave xk8 1997 ı m lookıng complate soft top for my car because mıne was broke ın that case ı can sent your neeeded parts ı u wısh also could you help me for used complate soft top (blue)my best regarts

SOURCE: 1999 Jag XK8 will not

The battery is either in your trunk or like the xj8 which is under the back seat, and yes you can jump start it when you locate the battery.
hope this helps
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SOURCE: my parking brake will not relase on a Jag xk8.

I worked in a Jag shop back in the '70's in Los Angeles, but I'm from New England, where this is a BIG problem, unless you use the parking brake ALL the time.  Actually this is true for all vehicles!
If the case is that you don't usually use the parking brake, and then you go to use it, it will sometimes lock on due to rust, corrosion and dirt in the cable.
SOMETIMES, if you are very lucky, you can drown the cable in WD-40, soaking it several times a day, from inside the car, and under the car as well, if you can get to it.
Each time you do this, hold the release button and work the lever over and over so that maybe it will release.
If this doesn't work, then you have to replace the cable.
Sorry that it's not an easy fix.  Ultimately you might have to have it towed to a dealer or shop to replace the cable.
Final thought...  sometimes the problem is with the levers on the brake assemblies, that can stick.  If you can get to them, give them a slight 'tap' with a hammer to see if they will suddenly snap open.  Make sure the brake lever is down and the button is held in by a helper.
If this is the case, a VERY light squirt of lube at the pivot points might keep it from sticking again, but be sure to use the parking brake often.
If the car is an automatic, the device that 'locks' the transmission when it's in 'Park' is called a parking pawl.  It is a small steel pin about 1/8" to 3/16" that gets shoved into a parking gear slot.  This is what keeps the car from rolling, so it's VERY important to use the parking brake to assist this, especially when someone bumps the car a little when they are parking their car!  Oh, and the parking pawl is most times the first thing into the tranny when assembling it, so it'a lot of work to replace one.
Good Luck.