Parking Brake Fault
#1
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So, sigh, the garage found a fault with the parking brake.
Brake locked on.
(The code they have om invoice is C1129-3A + 29"
They replaced the brake actuator and cables.
They also replaced Calipers and bled system.
When I eventually got car I had a fault on handbrake. It was returned to garage, who said it hadn't been programmed properly for the new actuator. They took some weeks to do this.
Just been out in car and now have parking fault. Unable to apply park brake.
Any ideas folks?
For the life of me I really don't want to be dealing with this garage again.
Also as an aside I was told that leaving the car in park should be enough to compensate for the lack of parking brake. Using the gears like this can't be good for the car? Anyone able to advise on this too?
Thanks.
Brake locked on.
(The code they have om invoice is C1129-3A + 29"
They replaced the brake actuator and cables.
They also replaced Calipers and bled system.
When I eventually got car I had a fault on handbrake. It was returned to garage, who said it hadn't been programmed properly for the new actuator. They took some weeks to do this.
Just been out in car and now have parking fault. Unable to apply park brake.
Any ideas folks?
For the life of me I really don't want to be dealing with this garage again.
Also as an aside I was told that leaving the car in park should be enough to compensate for the lack of parking brake. Using the gears like this can't be good for the car? Anyone able to advise on this too?
Thanks.
#2
Join Date: Jan 2012
Location: Newport Beach, California
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First item to check is available battery voltage. Use a voltmeter to read the voltage across the battery terminals with the ignition in the OFF position. There should be a minimum of 12.6 volts showing for all modules to function properly.
Many electrical 'gremlins' are caused by low available voltage.
Many electrical 'gremlins' are caused by low available voltage.
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Comradboris (06-20-2023)
#3
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First item to check is available battery voltage. Use a voltmeter to read the voltage across the battery terminals with the ignition in the OFF position. There should be a minimum of 12.6 volts showing for all modules to function properly.
Many electrical 'gremlins' are caused by low available voltage.
Many electrical 'gremlins' are caused by low available voltage.
I note that on their work invoice they have NEW BATTERY. I wondered about this, but doing some research since posting this I came across the concept of quiescent current. That worries me. Can I just use a multi meter to check battery?
The car hadn't been driven for 4 days.
#4
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Location: Newport Beach, California
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Comradboris (06-20-2023)
#5
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Voltage was okay.
There was a quiet beeping noise in boot when I was checking. Any idea what that is?
The battery is new. There looks like battery overflow on the pan below it. As if a orevious battery had overflowed?
I onow they had it stuck in park at the gatage. The issue for me was "Parking brake cannot be applied". So I am assuming same issue for the other side.
Can I keave my car in safely Park without the brake applied. I have been told I can by someone with an auto BMW.
There was a quiet beeping noise in boot when I was checking. Any idea what that is?
The battery is new. There looks like battery overflow on the pan below it. As if a orevious battery had overflowed?
I onow they had it stuck in park at the gatage. The issue for me was "Parking brake cannot be applied". So I am assuming same issue for the other side.
Can I keave my car in safely Park without the brake applied. I have been told I can by someone with an auto BMW.
#6
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For some reason Jaguar designed this model of XJ so the parking brake does not apply automatically when the car is placed in P. Why they made this change no one knows? So your EPB gets no use unless you remember to manually apply the EPB everytime you park the car. This is a terrible design!
By accident I always just leave the car in P without the applying the parking brake because of habit. My last Jaguar did apply the EPB everytime the car was placed in P so It was all automatic like it was designed to be.
Yes you should apply the EPB before placing the car in P but few do. I think you will be OK unless maybe your parking on a hill?
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By accident I always just leave the car in P without the applying the parking brake because of habit. My last Jaguar did apply the EPB everytime the car was placed in P so It was all automatic like it was designed to be.
Yes you should apply the EPB before placing the car in P but few do. I think you will be OK unless maybe your parking on a hill?
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Last edited by clubairth1; 06-22-2023 at 07:04 AM.
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Comradboris (06-25-2023)
#7
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For some reason Jaguar designed this model of XJ so the parking brake does not apply automatically when the car is placed in P. Why they made this change no one knows? So your EPB gets no use unless you remember to manually apply the EPB everytime you park the car. This is a terrible design!
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Btw: Auto EPB are programmable option. Not sure if it´s enabled / disabled by keeping switch pressed for more than 5sek, like many other autonomic functions like inside lights.
Auto EPB was enabled on my x351 when i import the car from Germany, but i disabled it before first winter. How? Cant remember, sorry. Maybe by switch or SDD?
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#8
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Thanks for the answer Vasara! I know it's possible now since your car did have it enabled.
I was hoping that to be the case!
I am in hot and humid country so no snow or ice to worry about. I will play with the EPB switch and never thought that it may need programming similar to PW one touch settings after the battery is disconnected. The EPB does automatically release fine if I remember to apply it when parking.
I have looked in SDD be as always I am never sure just where to look? It's most likely in there somewhere?
If by chance you do remember how you turned off the automatic EPB it would be a great help to post how it was done.
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I was hoping that to be the case!
I am in hot and humid country so no snow or ice to worry about. I will play with the EPB switch and never thought that it may need programming similar to PW one touch settings after the battery is disconnected. The EPB does automatically release fine if I remember to apply it when parking.
I have looked in SDD be as always I am never sure just where to look? It's most likely in there somewhere?
If by chance you do remember how you turned off the automatic EPB it would be a great help to post how it was done.
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#9
#10
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Unless you park on a perfectly flat surface, the car wants to move slightly before the parking brake securely grabs the rotor. This may only be one-half of a wheel rotation, but results in the transmission holding the car, not the parking brake. If you park on a flat surface, there's no need for the parking brake. In fact, after driving the car any distance, locking this brake to a hot rotor can result in some transfer of pad material to this rotor, possibly causing "hot spots" and resultant pulsation. If you are on any incline, park the car using the proper procedure.
For this reason, I don't recommend enabling the auto-EPB function, unless you have someone regularly dirving your car who can't (or won't) learn the correct parking sequence.
For this reason, I don't recommend enabling the auto-EPB function, unless you have someone regularly dirving your car who can't (or won't) learn the correct parking sequence.
#11
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Vasara knows everything about x351! I love it.
I'm the only one who drives the XJ so I don't worry about the auto function, but it was a little annoying at first to get into habit of pulling the EPB on hills. I could always tell if I forgot as when putting in drive/reverse after the parking pawl would always remind me with a loud clunk.
To OP, there is an EPB relearn procedure, sounds like they did it, but to be sure you could have someone else check it or ask them to go through it thoroughly again.
It's a short procedure, so if they took weeks, maybe that's just a warning sign to go to dealership for some final pricy support and peace of mind. I never recommend it unless last resort.
I'm the only one who drives the XJ so I don't worry about the auto function, but it was a little annoying at first to get into habit of pulling the EPB on hills. I could always tell if I forgot as when putting in drive/reverse after the parking pawl would always remind me with a loud clunk.
To OP, there is an EPB relearn procedure, sounds like they did it, but to be sure you could have someone else check it or ask them to go through it thoroughly again.
It's a short procedure, so if they took weeks, maybe that's just a warning sign to go to dealership for some final pricy support and peace of mind. I never recommend it unless last resort.
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Comradboris (06-25-2023)
#12
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Vasara knows everything about x351! I love it.
I'm the only one who drives the XJ so I don't worry about the auto function, but it was a little annoying at first to get into habit of pulling the EPB on hills. I could always tell if I forgot as when putting in drive/reverse after the parking pawl would always remind me with a loud clunk.
To OP, there is an EPB relearn procedure, sounds like they did it, but to be sure you could have someone else check it or ask them to go through it thoroughly again.
It's a short procedure, so if they took weeks, maybe that's just a warning sign to go to dealership for some final pricy support and peace of mind. I never recommend it unless last resort.
I'm the only one who drives the XJ so I don't worry about the auto function, but it was a little annoying at first to get into habit of pulling the EPB on hills. I could always tell if I forgot as when putting in drive/reverse after the parking pawl would always remind me with a loud clunk.
To OP, there is an EPB relearn procedure, sounds like they did it, but to be sure you could have someone else check it or ask them to go through it thoroughly again.
It's a short procedure, so if they took weeks, maybe that's just a warning sign to go to dealership for some final pricy support and peace of mind. I never recommend it unless last resort.
It had gotten stuck on with them but doesn't engage with me. Going to a Jaguar specialist in Dundee tomorrow for a drain and refill of the gearbox, so will ask him. Also bought an Xtool.D7 for codes.
As a possible connection. I got in car today, started and gear knob rose but it was stuck in parking and wouldn't budge. Thought I was stuck. Tried a few things before turning off car and then turning her back on, at which point it.was okay.
Is this also the parking brake or do I have something else to worry about? I am about to go on a large journey and trip so don't want to get stuck in a foreign country.
Any ideas?
#13
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First thing when you can't shift out of park is to press harder on the brake pedal. Next check to see if the brake lights are coming on. We have seen the brake switch possibly get a bit out of wack and the pedal was not pushing it in far enough.
Cheap and easy to check before digging deeper.
Plus you found a good Jaguar troubleshooting technique too.
A restart can fix a lot of strange stuff!
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Cheap and easy to check before digging deeper.
Plus you found a good Jaguar troubleshooting technique too.
A restart can fix a lot of strange stuff!
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