hi; i have a 2004 xj8, recently the boot wont open on the fob or on the button on the dash or the button on the boot, the only way i can open is with the key, i have power to the plug at the lock, any advice, i cannot be sure that it the motor on the lock, its a pain in the you know what

 

Could the valet button in the glovebox been bumped?

 

There are two microswitches in the boot locking mechanism actuator.I am guessing that one of these has failed.

 

hi,where in the mechanism are the micro switches, i have had the lock mechanism out and it looks to be a well sealed unit, the motor part is well intergrated into the mechanicai lock, however if i can be sure the problem is there i will give it a try, thank you for your response regards elwyn

 

I have not had a problem with my boot lock so I can't describe it to you,but I have had a problem with a door lock.

The door lock problem was caused by the microswitch not making contact properly.I removed the lock and actuator (they are both contained in one unit).

After manually switching the microswitch a few times the lock was working for a while but stopped again.

After much searching I was unable to find a replacement microswitch

I then replaced the unit with one from e bay. No problems since.

I know that there are microswitches in the boot lock and I would guess that they are the source of your problem.
I would recommend that first you ensure that there are no broken wires in the
flexible rubber boot where they enter the boot lid since this does also happen.

If there are no problems there the cheapest solution may be to replace the lock/actuator with an used one. I hope this helps and I hope that I am right!
Bob

 

thanks,will look into a new rear lock,more than likely have to put my children into slavery to pay for it regards

 

No need for that!

I bought a door lock off a 10,000 mile car for 25 GBP or 39 GBP shipped to Australia, O.k I was lucky it had done so few miles but they are available.

 

Do not know the cause but I am attaching a oneline for your car http://www.gusglikas.com/images/Auto.../jagxj2004.pdf Look at figure 12.1 you will see that the rear electronic module controls the operation of your trunk from the trunk release button to the trunk latch. It does sound like the Valet button might be malfunctioning because the master key and remote are the only way to open the trunk in Valet mode. The only other thing would be that your remote has a problem and is not responding to the request to open the trunk or as suggested the latch is malfunctioning. I hope the oneline helps!

 

You have an X350. You cannot apply fixes related to other models and won't be accurate for your car with an automatic lock. Since everything fails with the exception of the mechanical key operation you probably have a bad motor. Of course, check harness/connections to the lock motor. Second thing, but distant to a failed motor is to check the harness at the right trunk hinge, although this is a failure more consistent with other/older Models. But, if you have power down to the motor and it is not intermittent, then bad motor, not uncommon on an X350.

 

thanks steve, when i get HOHOHO over i will try a motor, as you suggested i have checked the harness at the boot but its perfect, once again thanks

 

My 2004 XK8 boot release button does not work. All other options for opening it do work so it must be the button. How do I replace it?
Thanks

 

AFAIK its part of the chrome finisher on the trunk lid, so you need to take off the lid cover, then you can take off the finisher and remove the switch. Imay be wrong, though, but you definitely need to take off the lid cover.