Auto handbrake sticking

[jemward]

Has anybody else had issues with the auto handbrake not releasing when you pull away? It happens on mine (VZ2) every day, usually only once, the first time it's used that day. The brake feels as though it starts to release then just as the car starts to move it grabs again, at which point the engine bogs down and almost dies. It takes a couple of seconds then it eventually goes. I took it into my helpful local dealer who could find nothing wrong (because it hadn't got an error message when they plugged into the computer I guess).

I'm fully expecting someone to see my brake lights go off and drive straight into the back of me! This is bad enough at traffic lights, but really not good at a T-junction where you can end up stranded half way out! Also makes you look a right plonker! I'm thinking of getting the windows tinted...!

 

[RADIOTWO]

Has anybody else had issues with the auto handbrake not releasing when you pull away? It happens on mine (VZ2) every day, usually only once, the first time it's used that day. The brake feels as though it starts to release then just as the car starts to move it grabs again, at which point the engine bogs down and almost dies. It takes a couple of seconds then it eventually goes. I took it into my helpful local dealer who could find nothing wrong (because it hadn't got an error message when they plugged into the computer I guess).

I'm fully expecting someone to see my brake lights go off and drive straight into the back of me! This is bad enough at traffic lights, but really not good at a T-junction where you can end up stranded half way out! Also makes you look a right plonker! I'm thinking of getting the windows tinted...!

I know this is not helping with the problem but why are you putting the the handbrake on when you pull up at lights or a junction ? just let the "hill hold" do the braking at that point !

 

[East Yorkshire Retrofits]

There's a software update available to fix this issue, we performed it on my Formentor last week. Speak to your dealer and explain the issue. I can send you the TPI if needs be

 

[ES_Formentor]

There's a software update available to fix this issue, we performed it on my Formentor last week. Speak to your dealer and explain the issue. I can send you the TPI if needs be

Can you tell me what the general fault the TPI fixes please. I have an intermittent fault at very low speed that feels a bit like clutch judder but also feels. Bit like the auto hold coming on and off even though it is not armed. Cheers

 

[Cupradev]

Has anybody else had issues with the auto handbrake not releasing when you pull away? It happens on mine (VZ2) every day, usually only once, the first time it's used that day. The brake feels as though it starts to release then just as the car starts to move it grabs again, at which point the engine bogs down and almost dies. It takes a couple of seconds then it eventually goes. I took it into my helpful local dealer who could find nothing wrong (because it hadn't got an error message when they plugged into the computer I guess).

I'm fully expecting someone to see my brake lights go off and drive straight into the back of me! This is bad enough at traffic lights, but really not good at a T-junction where you can end up stranded half way out! Also makes you look a right plonker! I'm thinking of getting the windows tinted...!

Hi mate, this happens to me sometimes. No where near every day though, I’d say it’s happened maybe 6 or 7 times since I took delivery in July last year. Also not first time pulling up but within maybe first 10 minutes, happens once but then no issues. Feels very odd when it happens as like you say, feels like the car will stall. Can’t help with a reason or rationale, but at least you know you’re on your own.
Also to Radiotwo, it happens with auto hold for me not manually putting handbrake on.

 

[MattyD803]

We regularly (at least weekly) have this on our VZ2….the problem is massively exacerbated when in “comfort” mode, as it uses 2nd gear to pull away for economy and refinement reasons, but that means the engine is also lacking in torque and we have had ours stall on 2 separate occasions. My mk7 Golf GTD also used to this years ago (I had it from new), so I am amazed this hasn’t been resolved with VAG.

 

[East Yorkshire Retrofits]

We regularly (at least weekly) have this on our VZ2….the problem is massively exacerbated when in “comfort” mode, as it uses 2nd gear to pull away for economy and refinement reasons, but that means the engine is also lacking in torque and we have had ours stall on 2 separate occasions. My mk7 Golf GTD also used to this years ago (I had it from new), so I am amazed this hasn’t been resolved with VAG.

It has been resolved

 

[MattyD803]

It has been resolved

Quite clearly it hasn’t, as my 2021 Formentor (with the latest software) does the same as my 2015 Golf did when it was new, in an identical manner. In my view, this is not an electrical / software related issue, but related to the handbrake mechanism release speed in conjunction with the use of comfort mode / gearbox selection.

 

[East Yorkshire Retrofits]

Quite clearly it hasn’t, as my 2021 Formentor (with the latest software) does the same as my 2015 Golf did when it was new, in an identical manner. In my view, this is not an electrical / software related issue, but related to the handbrake mechanism release speed in conjunction with the use of comfort mode / gearbox selection.

So your car has been for the recently released ABS update to solve this exact issue, and it hasn't solved it?

 

[MattyD803]

It went in 2 weeks ago for ‘all available’ updates with Cupra Reading…..I can only assume that included the ’ABS update’ as you call it. It has done exactly the same thing twice since, although didn’t stall both occasions, but it did bog down.

Can you tell me more about this ‘ABS update’ and what the ABS has to do with the release of the auto handbrake? Baring in mind this doesn’t happen with the auto handbrake deactivated.

 

[East Yorkshire Retrofits]

I'm referring to it as an 'ABS update' because that's exactly what it is. It results in the ABS pump being flashed to either 5WA614517 BL or BM & new datasets uploaded.

The TPI number is 2063188/4. It was released 16th February 2022.

The ABS control module controls the hydraulic brakes & electronic handbrake.

 

[East Yorkshire Retrofits]

Please see the attached 'ABS update' TPI. If it has been carried out then it should fix the exact issue you're having - if it hasn't then report it

They won't necessarily have carried out the update unless you reported the issue at the time

 

[MattyD803]

Thanks. I will have to ask them about this….I did tell them about this plus the other electrical / infotainment issues we have been having, but I wouldn’t be surprised if this was missed…

 

[Glosphil]

A number of the posts seem to confuse the Electronic Handbrake with the AutoHold.
The ABS system is used to apply Autohold but not the EHB.
The EHB is a seperate system & only operates when car is stationary & ignition off; if car comes to a halt when driving then AH is activated via ABS pump.
Explained on Seat web-site.

 

[Seriously?]

A number of the posts seem to confuse the Electronic Handbrake with the AutoHold.
The ABS system is used to apply Autohold but not the EHB.
The EHB is a seperate system & only operates when car is stationary & ignition off; if car comes to a halt when driving then AH is activated via ABS pump.
Explained on Seat web-site.

Exactly, the electronic parking brake is normally actuated by servo motors built into the rear calipers . That's the noise from the rear of the car you hear when you park up and switch off.

 

[East Yorkshire Retrofits]

The Electronic handbrake is controlled (electronically) by the ABS module. Autohold is controlled (hydraulically) by the ABS module.

 

[AndyCupra93]

I’ve had the same thing happen occasionally —presumed it was a firmware glitch where the vehicle control systems weren’t communicating properly (i.e. accelerator depressed beyond X % so release hill hold). I had the 1896 update recently but they didn’t mention performing this TPI. Wonder if it’s only applied if the problem is flagged.

 

[Glosphil]

From Seat web-site:

"The electric parking brake replaces the traditional manual parking brake. It’s operated by means of two geared electric motors on the rear disc brakes. The mechanical components are designed to hold your parked car securely, even if the onboard electric power supply fails. Indicator lights on the instrument panel and on the switch tell you when the parking brake has been activated."

 

[Glosphil]

The Auto Hold function offers you more convenience and extra safety. Operated via the ABS/ESC hydraulic unit, it stops your car from rolling away accidentally when standing still or setting off. When you brake your car to a standstill position, Auto Hold retains the last-applied braking pressure. You can take your foot off the brake, and all four-wheel brakes will stay on. If the ABS wheel speed sensors detect any rolling, braking force is automatically increased until the car comes to a standstill again. As soon as you press the accelerator and, in the case of manual gearboxes, release the clutch, Auto Hold releases the braking pressure.

So, EHB works on rear wheels only & AH operates the brakes on all 4 wheels.

 

[East Yorkshire Retrofits]

Go complain to your dealers about it, see if the TPI I posted above is applicable