ABS disable

hello
does anyone have an idea how I can disable the ABS for off-road driving without getting an error message? Would a simple switch be sufficient? If so, where would it be most appropriately installed?

again, this is only for off-road driving.

thanks
peter

In the driving school, the instructor simply pulled out the corresponding safety switch on the Golf IV to demonstrate what ABS does in snowy and icy conditions. I can't imagine that this procedure would have resulted in an error message. Or perhaps he didn't care.

The first ABS vehicles actually had this switch to disable the system.

hello

I just wanted to avoid pulling the fuse, because if it's that simple, I could install a protected line, a switch in the panel, and the problem would be solved.

I'm aware of the switchable ABS in some vehicles, but I just don't know how it's implemented there.

Regarding the fault indicator, I'm having trouble with it. While my ABS system seems to be functioning perfectly, the ABS light occasionally illuminates in extreme situations. I also sometimes get a 'no ABS' warning, which I believe is due to the fact that I no longer have a free-running differential in my Syncro. It has been replaced with a limited-slip differential in the rear axle for better ground clearance.

Perhaps someone has an idea of where I could connect a switch to bypass the ABS system if necessary. Thanks in advance.

Peter

Whether a fault memory entry occurs in a control unit when you remove the ABS fuse depends entirely on the vehicle.

In older vehicles, nothing is usually stored because the control unit has no connection to any other control unit.

In newer cars, the ABS is also connected to the CAN data bus, so another control unit detects that the ABS is no longer sending a signal and stores this in the fault memory.

hello

sorry, but I haven't even written down what kind of vehicle it is yet, I promise to improve and will now permanently record the data. so it's a T4 Syncro, year 2000, sorry again.

as I said, I want to avoid the error entry, and that's why I need a lot of suggestions.

thanks, peter

The ABS system cannot be disabled due to a very sensible EU regulation. I used to have it in my Audi 100 Type 44 and I miss it in snowy and icy conditions.

Hello,

Hmm... does pulling the fuse then lead to the loss of the ABE (approval certificate)? I mean, if it malfunctions and the inspector then finds that there was no fuse in there...?

Okay, one could put a broken fuse back in, but the reasons for this decision would be interesting to know.

@Peter: What bothers you about entering errors? As long as it doesn't lead to a breakdown and you have the VAGCOM to delete it before you go to the garage, that (if it's even allowed) shouldn't have any disadvantages.

Best regards,

Jan

hello

@christians

as I have already written above, turning off the ABS is only relevant for me when I am off-road, so I am not interested in the regulations that apply on the road, as I will only use this function when I am not on a public road.

@jan6k

What bothers me about the error report is that I don't want to have to constantly carry a laptop in my car just to be able to delete error reports when I am off-road.

Regarding your question about the ABS, it's quite delicate. I'm working on my thesis in an expert consulting office (officially appointed and sworn), so we often deal with court cases related to this topic. The problem with disabling or disconnecting the ABS, or with a faulty one, is that you have to prove whether the system was functioning properly at the time of the accident. In most cases, due to the evidence or, if possible, through investigations or accident simulations after the accident, a clear statement can be made. However, in cases involving rain or specific road conditions, it's not possible to determine whether the ABS was functioning or whether it was damaged during the accident. In these cases, it's up to the judge.

'this requires judicial consideration', a more elegant expression.

Hope I was able to help.

Peter

Hey Leute,

Ich weiß nicht, welche elektronischen Hilfseinheiten Ihr in Ihrem T4 aus dem Jahr 2000 habt, aber wenn man die ABS-Sicherung im Gelände zieht, führt das eher zu Nachteilen, da auch ASR, EDS und ESP (glücklicherweise braucht man das im Gelände nicht ) ausgehen. Und sobald das ABS-Lämpchen leuchtet, gibt es IMO einen Eintrag im Fehlerspeicher. Ich weiß zwar, dass man das ABS im Auto deaktivieren kann (frag mal bei Tuneline nach), aber um es ein- und auszuschalten - hmm - keinen Schimmer.

Greetz

@troubleshooter

Du kannst meinen T4 Syncro nicht unbedingt mit deinem Golf vergleichen, denn ich behaupte einfach, dass ich erst dann losfahre, wo du schon steckenbleibst :D

Seriously, the entire electronics system is a hindrance, especially the ABS and EDS. However, if I deactivate the ABS, shouldn't the EDS also stop working, since it relies on the brake intervention and works with the ABS sensors?

The problem with ABS and EDS is simply the fact that the brakes get very hot, and in situations with full braking or steep inclines with ice and mud, the ABS hinders the system.

I prefer to use solid technology, although the T4 doesn't have much of it, I'm trying.

Peter

So, is there definitely a fault if you pull the fuse?
Have you tried that?

You can't really compare my T4 Syncro to your Golf, because I'm just saying that I start moving where you're stuck :D

Peter

To be honest, you're a bit better than me in terms of ground clearance :D


The problem with ABS and EDS is simply that the brakes get very hot, and during full braking or steep inclines with ice and mud, ABS hinders the process.
Peter

This is definitely correct. My brakes overheat even with a moderate driving style on snow.

Regarding the error message, I am quite sure that it is accurate, as it has always shown 2 errors for me (ABS sensor defective).

RPM error on the right front
ABS inactive

Greetings

@synchro peter:

Mal eine ganz andere Überlegung, wenn es hier schon um Gutachten nach Unfällen geht. Wie funktioniert denn die ABS-Funktion, wenn die hintere Achse ohne Freilauf ist?
War das nicht auch ein Grund, warum ABS bei Allradfahrzeugen erst viel später eingeführt wurde?

If we're already discussing the legal implications of a pulled fuse, what happens if you need to make a full stop at 150 km/h and the rear axle passes the ABS's control range because it can't be regulated due to lack of free-running? :

Just a thought from me...

@wolfi

I tried it and encountered an error.

@roger

A valid point, but no problem with the T4 Syncro.

The T4 Syncro is not a true 'all-wheel drive' vehicle, at least not in that sense. If we're already talking about it, true all-wheel drive vehicles don't have a free-wheel. This is also a problem in off-road conditions.

The first synchros had brakes without a free-running mechanism. The free-running mechanism was only added later, so the vehicle must have been from 97/98. Load-dependent braking force regulators were only available for synchros without ABS, while normal T4 vehicles also had a combination installed.

Why should my rear axle overtake me, apart from the fact that I have thoroughly tested this before modifying the car, the ABS functions without problems, there are no errors, and the warning light does not illuminate when braking.

small differences in rotational speed will also be compensated for by the viscous coupling, so there are no problems on either side.

peter

Hi!

Depending on the type of ABS installed, it might be sufficient to interrupt the line from the brake light switch.

Ciao, Jockel

good evening
brake light switch?

Which 'ABS' do I need?
Peter