E Brake Problem Solved

[Skywagon]

As you know the electric parking brake on the rear wheels of the S4 has eliminated our ability to install BBKs all the way around our cars. We owe a big thank you to the below gent who has found a way around the issue. Your cars parking brake will be inoperative but now you can install big brakes on the rear axle too. I'm having a some Brembo's installed next week by GMP and will confirm the procedure works.

THANK YOU Doug!!!!!

Doug Schuler
Apikol -Performance Automotive Components
303-731-3571 - office
866-505-4126 - fax
www.facebook.com/Apikol
www.apikol.com

I was able to fully delete the rear parking feature on my customer's B8 S4 with the following steps:

1. Unplug Rear Brake Control Module
2. Remove Parking Brake from Module Gateway via Vag-Com
3. Change instrument cluster coding to remove Parking Brake

After those changes, there were no lights illuminated in the dash, and no issues noticed during driving. However, there were 4 modules (engine, trans, etc.) that had a fault code for missing brake module. I suppose it would be possible to change the coding in those modules (like I did in the instrument cluster) to make them ignore the missing brake, but since there were no lights on the dash, I didn't feel that is was necessary.

[GeoJoe]

So you can stop better on the track, yet wonder when your S4 might roll away from you when parked on a steep hill?

Or does Doug's mod come with a set of wheel chocks?

I don't see how this is a win. Safety fail IMO.

[dzasta]

i read your post twice just to make sure. but are you saying you will no longer have ebrakes after this? i hope to God that you drive a DSG...

but it still makes me cringe (i drive a DSG too)

[will13k7]

how much does just putting the transmission in park prevent the car from rolling? I see people do this all the times with various cars. There is a tell tale bump back in forth after they let off the brakes. I never thought that would be good for the transmission, so I've always used the parking brake, but I don't have any technical knowledge here.

Speaking of cars rolling, just this week some guy in a B8 A4 at work forgot to apply the parking brake, not sure if manual and not in gear, but it rolled and hit another parked car much after he had went into the office, lol!

[GeoJoe]

To add, your subject line is an exact contradiction. You now have a big e-brake problem.

[dzasta]

how much does just putting the transmission in park prevent the car from rolling?

it will not roll away 99% of the time. but i use the handbrake every time. call me anal but i hate it when i shift into drive when the cars weight is resting on the gear (when your on an incline for example). the grinding feeling sensation when shifting is like nails on the chalkboard to me.

[Joe85sti]

how much does just putting the transmission in park prevent the car from rolling? I see people do this all the times with various cars. There is a tell tale bump back in forth after they let off the brakes. I never thought that would be good for the transmission, so I've always used the parking brake, but I don't have any technical knowledge here.

Speaking of cars rolling, just this week some guy in a B8 A4 at work forgot to apply the parking brake, not sure if manual and not in gear, but it rolled and hit another parked car much after he had went into the office, lol!

Although I agree that this seems like a terrible idea to get slightly bigger rear brakes, the mechanism that keeps your car stationary in an automatic, or in this case, DSG transmission has no negative effect on the transmission. It is a completely separate ring of notches that a big pin goes into to keep the car stationary. The cars weight is not sitting against the gears.

[dzasta]

Although I agree that this seems like a terrible idea to get slightly bigger rear brakes, the mechanism that keeps your car stationary in an automatic, or in this case, DSG transmission has no negative effect on the transmission. It is a completely separate ring of notches that a big pin goes into to keep the car stationary. The cars weight is not sitting against the gears.

good to know! learned something new tonight...

[SwankPeRFection]

Although I agree that this seems like a terrible idea to get slightly bigger rear brakes, the mechanism that keeps your car stationary in an automatic, or in this case, DSG transmission has no negative effect on the transmission. It is a completely separate ring of notches that a big pin goes into to keep the car stationary. The cars weight is not sitting against the gears.

Word! You beat me to it. Below is a pic of the DSG internals. See the Parking Lock Gear?

[will13k7]

"P position of the floor-mounted gear shift lever means that the transmission is set in "Park". Both clutch packs are fully disengaged, all gear-sets are disengaged, and a solid mechanical transmission 'lock' is applied to the crown wheel of the DSG's internal differential. This position must only be used when the motor vehicle is stationary. Furthermore, this is the position which must be set on the shift lever before the vehicle ignition key can be removed." -Wikipedia

[SwankPeRFection]

I can remove the key from my car without putting it in park.

[Skywagon]

I find some of your responses simply amazing! Many of you track your car and then raise a red flag about a parking brake? If you don't like the procedure fine, don't do it! You sound like a bunch of old women as you mod your cars to go faster and then whine about a parking brake most never use. Good grief!

[apexit1]

I'm guessing NC is pretty flat. What are your plans when you need to park on a incline/ decline? Is this your DD?

[Skywagon]

I'm guessing NC is pretty flat. What are your plans when you need to park on a incline/ decline? Is this your DD?

You are correct. Yes it's my daily driver. The problem is easily solved.

http://www.mto.gov.on.ca/english/dan...ion2.8.3.shtml
http://www.harborfreight.com/solid-r...ock-96479.html

[SwankPeRFection]

You are correct. Yes it's my daily driver. The problem is easily solved.

http://www.mto.gov.on.ca/english/dan...ion2.8.3.shtml
http://www.harborfreight.com/solid-r...ock-96479.html

I find this post a bit funny because the first link popped into my head when the question first came out above. Wonder if only older guys remember this procedure and second because you know Sky's got a ton of chocks because I'm sure he uses them on the plane.

Anyway, from the sense that you are going bigger brakes in the back, are you not worried you're going to go too strong a brake bias is the back and possibly cause a rear lockup faster than stock? The only reason I ask this is because I had a friend who didn't listen a long time ago and did brakes all around to BBK and that car was a pos to drive hard and brake hard due to the shit brake bias that would now upset the car's handling. Just wondering, that's all. I guess in my mind RS5 upgrades is the route I'll be taking and if that cars rear caliper is the same as ours with only rotor difference, that's good enough for the weight of our cars.

[apexit1]

To touch on what swank mention I read a post recently on a GTI forum. Guy got the ci or something similar of the calipers and compared it to stock. If the difference is too large then there will be more pedal travel and less responsive brakes. If it's a kit made for us I don't think there would be an issue but just some food for thought.

BTW I'd never get something that would jeapordize someone safety for possibly better braking. If the car hops the curb and gets rolling you have 4k lbs of steel moving around uncontrolably. I'd also sell the car before having to use wheel chocks everytime i park lol

[s4buckeye]

[SwankPeRFection]

The car is DSG, so all this is pretty much a moot point. Personally, I wouldn't do this because the module faults will still be there and retested every damn time the car is keyed On. To me that's just unclean even if a dash light is suppressed.

Either come up with a proper caliper that can maintain the electronic ebrake or go with OEM solutions from another model that has a similar setup and would work. Until then, how much braking improvement can be made by larger rear brakes. Sky, please do some tests for us before and after for just the back. Go out, do some stops from 60-0 and 100-0 to measure distance with proper come markings, etc. Then swap the backs and repeat.

Don't be doing the test with stock brakes all around and them upgraded ones both in front and back. We're looking to show how much the back upgrade improves things, so keep the variable limited please. Otherwise it'll be another test like your dyno for the headers where you changed two things instead of just one.

Stock brakes, then maybe upgraded fronts and stock back and then upgraded all around. Those would be three good tests to show improvement at each level.

[Skywagon]

Swank, don't fly any more but yes I have chocks. Apex, you worry too much! Buckeye, please elaborate.
Thanks

[s4buckeye]

The thought of not having an ebrake enabled, the codes, the BBK upgrade, the possible liability, etc., etc.

Have you ever tried to park in place like San Francisco with serious hills and whatnot? Ever seen how much info is stored about current operating parameters from your car that can be used in an accident investigation?

ugh.

[Skywagon]

The thought of not having an ebrake enabled, the codes, the BBK upgrade, the possible liability, etc., etc.

Have you ever tried to park in place like San Francisco with serious hills and whatnot? Ever seen how much info is stored about current operating parameters from your car that can be used in an accident investigation?

ugh.

Well, I don't live in San Fransisco so please don't interject your personal problems into a thread! Second, I'd wager more than the majority of the people on this web never set the brake, or have to. Third, it appears you are fearful of the computers being used in an accident investigation? But I'd wager you haven't reprimanded anyone for road racing or drag racing their Audis? Fourth, you obviously don't know how a simple chock works. Wow, you are severely over reacting. You are obviously a very fear filled soul. Seek professional help!

[Usa]

S4 wheel chocks LOL

[Skywagon]

S4 wheel chocks LOL

You just broke the code.....congratulations! Easily installed, even a child can do it!

[GeoJoe]

[s4buckeye]

Well, I don't live in San Fransisco so please don't interject your personal problems into a thread! Second, I'd wager more than the majority of the people on this web never set the brake, or have to. Third, it appears you are fearful of the computers being used in an accident investigation? But I'd wager you haven't reprimanded anyone for road racing or drag racing their Audis? Fourth, you obviously don't know how a simple chock works. Wow, you are severely over reacting. You are obviously a very fear filled soul. Seek professional help!

Obviously you are a complete idiot. Have you read the responses to your "solution"? Wheel chocks on a car?

I truly thought the level of inane posts had tapered off on AZ, but you have crushed my dreams between this thread and your wheels for sale:

http://www.audizine.com/forum/showth...eels-and-tires

Tell me, does the stupid burn?

[samq45]

First thing I thought of was how will you pass inspection in those states that require a working E-Brake?

[Skywagon]

Obviously you are a complete idiot. Have you read the responses to your "solution"? Wheel chocks on a car?

I truly thought the level of inane posts had tapered off on AZ, but you have crushed my dreams between this thread and your wheels for sale:

http://www.audizine.com/forum/showth...eels-and-tires

Tell me, does the stupid burn?

Someone recently did a survey on the average age of Audzine posters. I believe it was 24. Unfortunately it seems to be more like about 12 years of age. Toss in some west coast liberal elitism and one has what is called a bigot....a 12 year old one too. I can't help it some of those on this web site are terrified of their own shadow. Stay home under your beds sucking your thumbs and wetting your pants. It's where many appear to be hiding these days.
Love to all,
Stupid

[Skywagon]

Geo, you live in GA? You must be a red neck too, correct?

[F16HTON]

As you know the electric parking brake on the rear wheels of the S4 has eliminated our ability to install BBKs all the way around our cars. We owe a big thank you to the below gent who has found a way around the issue. Your cars parking brake will be inoperative but now you can install big brakes on the rear axle too. I'm having a some Brembo's installed next week by GMP and will confirm the procedure works.

THANK YOU Doug!!!!!

Doug Schuler
Apikol -Performance Automotive Components
303-731-3571 - office
866-505-4126 - fax
www.facebook.com/Apikol
www.apikol.com

I was able to fully delete the rear parking feature on my customer's B8 S4 with the following steps:

1. Unplug Rear Brake Control Module
2. Remove Parking Brake from Module Gateway via Vag-Com
3. Change instrument cluster coding to remove Parking Brake

After those changes, there were no lights illuminated in the dash, and no issues noticed during driving. However, there were 4 modules (engine, trans, etc.) that had a fault code for missing brake module. I suppose it would be possible to change the coding in those modules (like I did in the instrument cluster) to make them ignore the missing brake, but since there were no lights on the dash, I didn't feel that is was necessary.

Eurocode did a hardware solution for a customer, Brembo's on all four corners, zero codes in any module, no computer coding changes required

[Skywagon]

First thing I thought of was how will you pass inspection in those states that require a working E-Brake?

Yes, it truly is a gut wrenching and terrifying thought!

[s4buckeye]

lulz.

[Skywagon]

[QUOTE=s4buckeye;9652737]lulz.

[/QUOTE

I take the above as a threat. I thought elitists abhorred violence but it seems I was wrong. I think it was time you were banned from this site. I'm contacting the webmaster.

[samq45]

Yes, it truly is a gut wrenching and terrifying thought!

Its a simple comment that some people might have to worry about. This problem that you indicate has been "solved" leads to a few others.

Obviously you have not thought this through and rather than addressing a valid point you throw out comments like this when you have nothing else.

Why dont you Tell us more about those headers.... We are all flocking to the B8 board to get this wonderful knowledge you provide for us.

[Skywagon]

Its a simple comment that some people might have to worry about. This problem that you indicate has been "solved" leads to a few others.

Obviously you have not thought this through and rather than addressing a valid point you throw out comments like this when you have nothing else.

Why dont you Tell us more about those headers.... We are all flocking to the B8 board to get this wonderful knowledge you provide for us.

I don't consider them problems, why do you? Why are so many on this website so hostile, bitter and full of hate?

[s4buckeye]

Its a simple comment that some people might have to worry about. This problem that you indicate has been "solved" leads to a few others.

Obviously you have not thought this through and rather than addressing a valid point you throw out comments like this when you have nothing else.

Why dont you Tell us more about those headers.... We are all flocking to the B8 board to get this wonderful knowledge you provide for us.

Exactly.

I don't consider them problems, why do you? Why are so many on this website so hostile, bitter and full of hate?

Well, dumb usually does not get a warm reception on AZ.

I take the above as a threat. I thought elitists abhorred violence but it seems I was wrong. I think it was time you were banned from this site. I'm contacting the webmaster.

One would hope you got it, but it appears not. You are the Karate Kid here, bro.

Can you ban yourself? Can you chock your computer to prevent it from rolling off your desk? Are you friends with West?

[Skywagon]

No I don't get it, I consider it a threat. You sent it not me. Web master contacted. Again, why are some of you so filled with bitterness, hostility and hate?

[s4buckeye]

hahahaha. this is awesome. West has serious competition now!


Sent from my iPhone

[Skywagon]

So your response is to bad mouth someone else? West has nothing to do with this. You sent me a threatening post. Now you realize you made a mistake. Now it's all a big joke. Why don't you just stop typing and cool off? I'll accept an apology. Why don't you answer my simple question?

[s4buckeye]

wow.

nobody sent you anything, nor was it a mistake or a threat.

if you are too dumb to get it, you may want to knock your head a few times with your wheel chocks.


Sent from my iPhone

[mact3333]

Moral of story, win the crowd with tales of lowering, negative camber, low deep fart sounds from exhaust...record sound clips of whine from roc euro, put on 20's with 30 mm spacers and claim no rub, say you're considering stage 8 APR on race fuel and getting warranty work done with no TD1.

But do not talk of e-brake that 99% of dsg owners do not use as that's clearly sacrilegious.

Congrats, you're the first person on AZ to get ridiculed for putting on a BBK...if you don't mention the e-brake issue and just show pics of your BBK, you would have won the crowd and they would have chanted Skywagon like they did for Spartacus in the arena...