Hello all,

I have searched the forum and can't seem to find if anyone has asked this question;

Is there a way to turn off the automatic parking brake when you pull your key out? Just today I got the parking brake fault message and find this all very annoying.

Anyway to put it in manual mode? It would really help save wear and tear on the e-brake motor, just another part to wear out and replace.

Any thoughts would be helpful!

Thanks!

 

Just keep your your right foot on the brake pedal and at the same time also keep the EPB pushed down during engine shutting and key pulling out.

 

you can also view it as keeping the ebrake motor working in good condition. Our Audi A8 does a self adjusting every x amount of times we turn the key off. Audi does not have an auto use, but i assume this self adjust keeps the motor in good working condition...ie not freezing, etc.

I think it's a good thing the ebrake is automatic. I believe the more you use motors, the longer they work. I often use the power side fold in mirrors for this reason.

 

I usually disable it as Paydase outlined if I've driven in slush conditions and I expect it to get cold overnight so it does not freeze on. I also disable it if I expect the temperatures to be less than zero F overnight, again to keep it from freezing on.

 

Yes, the automatic parking brake is an option that can be disabled in SDD if you have a non-Nav vehicle. With Nav you should have an option in the vehicle settings.

 

The seats, mirrors, brake pedal, steering assembly, all the motors.
Have been set, then their auto functions set, so they do not adjust, on their own.
The E brake motor is the only one needing stopped every time.
Occasionally i do use all the motors, so they don't lock up.
By doing this i save 98% of the normal wear & tear of every day use.
Hoping that the motors last the life of the vehicle this way

 

I DESPISE the automatic parking brake. I have never in my entire driving history (47 years, now) set a parking brake on a car equipped with an automatic transmission. The transmission's Park pawl will keep the car stationary.

My jag was crippled for a few days because the damn parking brake would not release! I finally just drove it slowly around the parking lot and it popped loose, and has been drivable ever since, although I have a steady yellow light and a message "Cannot set parking brake" along with a DTC in the module about the circuit.

I was hoping this disable method would at least turn off that "Cannot set" message, but it doesn't.

 

Me too neither, except on steep parking with obvious load on the pawl.
I notice that all the "professionals" do, mechanics and warrant of fitness guys. I'm not sure if there would be an insurance issue, if you parked on a steep hill just in Park.

It has been said to me (i.e. not my own idea) that if you get shunted in a parking space the parking brake might help save the pawl. I was shunted once, just in Park, an insurance job on the bumper but no other latent damage for the time I had the car.

But it is blissfull being dumb. Not having to worry about freezing etc, it took me a couple of years (really!) to realise my XJ was surreptitiously putting on the parking brake when I didn't. And none of my other cars "knew better than me". LOL. The only issue is if something packs up, which happened to you but must be rare surely?

Other than that, I prefer a big lever that looks like a helicopter collective pitch. Because, when I was teaching my wife to drive on a steep hill, I couldn't get to the foot handbrake in that car so she bumped into the car behind. Not a problem with the Jaguar EPB of course, except who amongst you has actually tried it at speed?

(Anecdote. My 1967 S-Type manual said it wouldn't go into reverse above 20?mph. The test procedure in the manual was to drive over 20?mph and put it in reverse! (seriously). So I did. It worked. I know you were hoping for a better story....)

P.S. But never fear, I expect to post a horror story soon. What is the headlight stalk on my XJ, is the indicator stalk on my Honda, but it's the GEAR SHIFT on my newly acquired A180...no I don't sleep well. I've only stuffed up once, with right indicator, which was Drive....

 

Depends what you mean by "at speed"! It's tested annually over here (UK) as part of our MoT, though at a quite low speed on a rolling road.

 

I don't believe they'd be familiar with every car manual to that level of detail, shall I put it. Don't believe you in this context.

 

I'm not sure what that means, exactly, sez the Florida boy!

 

For clarity please say who you don't believe.

Our MoT does require a car's emergency brake be tested and I've watched it multiple times (so if you meant me then you're free not to believe me even so).

You can read Jaguar doc to see how the EPB works when applied at various speeds and they appear correct.

 

The MOT test is primarily concerned with maximum braking force. It also refers to "gradually apply the parking brake", which no-one here seems to have tried "at speed". How do you do that (gradual)?
It might well be benign. I await someone else to test it and post :-)

It's a right shock at slow speed.
To put it another way, there are at least 2 parking brake modes. Does the MOT test that? And even if they do, no-one here has posted doing so.

Ahh but that big lever with the cables - those were the days!

 

The MoT is to find out whether the brakes work adequately. The manual is online if you care to read it.

If all else fails, read the Jag doc! At higher speeds it applies little by little each time you pull up the paddle. At slow speed it applies.

I've watched an MoT tester do it and have tried it myself. It's not really different in effect to the old-type handbrake.

 

Would appreciate if you could oblige with which Jag doc.
The owners manual does not describe higher-speed EPB (X358) (JJM100221802_tcm96-41254)
(beyond a "difference" over 2~3km/hr)

But if you've actually tested it yourself at speed (rather than just "watching MOT"), you could have said so in the first place. Thanks!
Any others who have actually tested it?

 

I don't have a 2008 XJ6 workshop manual but here's the S-Type wording:

Where EPB is applied at speeds below 3kph the parking brake will apply full force, at speeds of 3-32kph, the EPB will apply for the length of time the switch is applied. Repeated pulls of the switch will increase the parking brake effort until clamforce is achieved. Above 32kph the EPB will apply for 500ms, then steps of 250ms if the switch is held up. Pulling the switch once and releasing it will apply the parking brake for 500 ms, each subsequent pull will apply the parking brake for 250 ms steps until full force is applied. Pushing the switch or throttle application will release the parking brake (In all cases the EPB switch has overall priority).

I expect clamforce is a typo.

 

My 2004 XJ Handbook states "If the vehicle is in motion, the parkbrake should only be used as an emergency brake."

 

Of course it does. That's all a park brake should ever be used for if the car is in motion.

(Unless you're rallying and have a hand brake!)

 

Hi
Please forgiveness if this is a silly question...
If I apply hand break on j gate when I park and then switch off engine must I then press break with foot before restarting the car?

Is there a connection between brake, solenoid in key fob, immobilizer and cranking?

Sometimes car wont start until I press break with foot.

Thanks

 

Generally automatics want your foot on the brake when starting so that the car does not set off in what may be an uncontrolled manner.