Jaguar Forums - Jaguar Enthusiasts Forum - XJ XJ6 / XJ8 / XJR ( X350 & X358 )

Battery price shock

richardvdp — Fri, 22 May 2026 22:51:38 GMT

Still recovering from sticker shock vis a vis oem battery replacement for 2007 VDP. I am somewhat reluctant to spend in excess of $500 for a battery. Any suggestions for an aftermarket that matches OEM physical and electrical specs? Thanks for any and all. Richardvdp (Dick Otten)
Owning a Jaguar is like being married to a prostitute. You know she will let you down at every opportunity, take all your money, and leave you standing by the roadside waiting for AAA; but you don't care. You love her.

2008 Vanden plas - AC blowing warm air

novice19 — Fri, 22 May 2026 22:11:23 GMT

I again need some help, please. My AC is blowing warm air. I bought a can of freon with a gauge to check the pressure on the low side and to charge if required. The low side rating when AC is off is 125PSI, which reduces, and the gauge needle goes into the green range when AC is switched on. This eliminates the following issues, as per my understanding;

1- The system does not need more freon as the low side is within the green range when AC is on
2 - The AC switch is working
3 - The compressor is working because when switched on, the pressure on the low side drops
4 - I have checked the cabin filter, and it is clean
5 - The cooling fan did not kick in as soon as I switched on the AC; however, when the temperature rose to half on the gauge, the fan kicked in. I assume this is normal.

Can someone please advise what else could be wrong?

33K mile 08 VP just coded C1799

therobski — Mon, 18 May 2026 16:02:11 GMT

Out of the blue started the VP this morning and ANOTHER pesky light came-Park Brake fault. Tested it with my Ancel LD700 and showed a code C1799. So I did the park brake release procedure with my foot on the brake several times to no success. It works fine you can feel it while your foot depresses the brake pedal. I did so reading on some old posts-is there anything new I can can try before I may end up taking it to the shop? In a few minutes I'm going to disconnect the battery for several hours and reset later this afternoon.. I am not to well versed on trouble shooting in depth electronic issues. Thanks.

Spare parts x350 Bristol

Leonmaas — Mon, 18 May 2026 11:28:33 GMT

Hi all

this week I am working in Bristol anyone have spare parts like cr�me passenger seat x350 v6
wooden steering wheel headlight lens covers and others.
my mail lmaas273@zeelandnet.nl
please contact details and price

thanks

leon

Can I wire a 6 pin throttle body into a 4-pin throttle body on my 2004 XJ8

Macoroni69 — Fri, 15 May 2026 21:49:23 GMT

The six pin came out of a 2008 XJ8 Jaguar and I want to put it in my 2004 XJ8 Jaguar

Rough shift approach

JustABeginner — Wed, 13 May 2026 12:12:58 GMT

I recently purchased a nice 2004 XJR that shifts roughly between first and second gear, especially under load. Shifts between all other gears are good. It happens even if I�m in Sport mode or using the J-gate. The previous owner said he took it to a the closest Jag dealer (two hours away) and they said it was fine and �adjusted� it and changed served the transmission. I don�t have documentation though. To me, it�s a noticeable bump but still an annoyance. My question is, what�s the best approach to get it resolved? I doubt a local generic transmission place could handle anything if it gets into electronic mapping and reprogramming but I have had good luck there with ther vehicles (BMW). My local foreign car service seems to know what they�re doing but grossly overestimate any services. They recommended transmission replacement on my BMW problem that the local transmission shop fixed. Is this bump normal or should it be buttery smooth? Any suggestions on what to ask for and expect are welcome. Thanks

PATS transceiver or KTM. (Key Transponder Module)

LeoM — Wed, 13 May 2026 00:08:02 GMT

Hello, I am having trouble finding the PA

TS transceiver / ignition immobilizer antenna ring for a 2004 Jaguar XJ8.

VIN: SAJWA71C34SG27167

I attached photos of the part I need.

Thanks for any help.

Replacing the Power Steering Rack on an 05 Vanden Plas

Noble Commando — Tue, 12 May 2026 12:32:28 GMT

I have a 2005 Jaguar Vanden Plas with a steering rack that needs replacing and I would like to know what procedures I need to do in order to replace it and how long it'll take to replace the rack.

Restricted Performance

jaguar258 — Mon, 11 May 2026 21:23:11 GMT

Whenever i am on the Motorway, and i put a little pressure on the Engine, a Restricted Performance (RP) message comes up. Not all the time, but every now and then.

It is a 2.7 TVDI 56 plate and it runs very well, but when i can at times increase the revs then RP appears on the message area. I am wondering if that could be because of a faulty MAF Sensor.

Thanks for your help anyone.

cats system to stiff

Leonmaas — Mon, 11 May 2026 14:37:47 GMT

Dear all today is was looking for an x350 4.2 and the car is very nice.
The garage told me they programmed the suspension system as it is driving about 100 miles an hour.
So all the time suspension is tight.
Is this easy programable back to normal?
For me it means buying the car or not.
The dealer where it is now can not do it and the garage where it was done does not exist any more.

All info is welcome

regards,

Leon

$1500 brake pad/rotor estimate

mattuar85 — Sun, 10 May 2026 15:50:18 GMT

Trying not spend what my local vintage Jaguar shop charged me for new brake pads/rotors for my 98 XJ8 VDP. Any recs for reputable brands that sell the parts together as kits?

Steering wheel rub

JustABeginner — Fri, 08 May 2026 13:54:30 GMT

There is a small diameter copper wire or post between the part of the steering wheel that rotates and the part that�s stationary. It makes a high pitched squeak when I turn the wheel. More of a slight annoyance than anything. Is it supposed to be there for some reason, e.g., electrical conductivity? It�s at the six o�clock position. I can move it with a small screwdriver. Just trying to avoid pulling the steering column apart on a 2004 XJR. Thanks.

X358 side mirror on x350?

Lyktestolpe — Thu, 07 May 2026 06:13:00 GMT

Hello,

I need to replace my side mirrors on my x350 because of corrosion. Will the x358 sides fit physically? X350 right side ar hard to find�

don�t mind if the power fold or blinker don�t work.

Gorgeous '07 XJR Just Listed!

hisport — Wed, 06 May 2026 01:46:15 GMT

If you've ever wanted a really well sorted XJR, I'm reluctantly selling mine, and just listed her in the forum Marketplace. She's just about perfect - and a wonderful example of the hard to find X356 version. I'd really love to see her go to a forum member. If you search my moniker, you'll see that essentially every upgrade and service has been performed over my ten years of ownership (and forum membership). And, if you fly in (Winston Salem, NC), I'll pick you up at the airport, and you can include the Blue Ridge Parkway on your voyage home...

New Headliner

Rear individual HVAC and heated seats; full multimedia center

Supple camel leather; top end Alpine hifi

P0121 new throttle body made it worse.

BrokenXJ8 — Tue, 05 May 2026 22:51:40 GMT

My 2004 jaguar xj8 went into limp mode the other day �ENGINE SYSTEM FAULT� �DSC UNAVAILABLE� and �PARKBRAKE FAULT� I pulled over grabbed my trusty scanner from the backseat and it was throwing a P0121. So I cleared the code and the car would be back to normal like nothing was wrong for about 30minutes or so then it would throw the code again but it let me get it home. I ordered the throttle body yesterday when all that happened today it arrived and I replaced the throttle body and now it does it all the time. Somebody help Is there a programming procedure through SSD?