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THE 402 MOD: Audi allroad suspension adjustment how-to

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Old 11-23-2002, 08:49 PM   #1
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Default THE 402 MOD: Audi allroad suspension adjustment how-to

The 402 Mod: Suspension adjustment via VAG-COM tool

Disclaimer: I assume no liability or responsibility for any damages or loss that may arise either directly or indirectly as a result of the application of the information provided herein. Please read instructions fully before attempting this modification. Serious harm or injury may come to you or your vehicle by performing these modifications. This mod will seriously alter the handling characteristics of your vehicle. Perform this modification AT YOUR OWN RISK.

What will you need?
A VAG-COM tool:software and cable available from Ross-Tech
A ruler or tape measure if you're looking for precise measurements
And of course, an Audi allroad

What does this modification do?
The Audi allroad comes with a height adjustable suspension that lowers or raises the car through four preset levels. The car's computer includes a calibration tool that allows you to reset the height to factory specifications in case you're car was to get out of normal operating range. This modification "tricks" your car into thinking that it is out of normal specifications. By telling the allroad that it is indeed higher than it really is, it will adjust itself to ride lower on all four settings or vice versa if you were to tell it that it was lower than it really is.

Does the car still go "up and down"?,
Yes. However, if you lower your car 1/2 inch, ALL settings will be 1/2 inch lower. There is NO way to only lower the lowest setting.

How do I alter the ride height of my allroad?

With your engine not running, but the car's ignition set to "on", log into the allroad using your VAG-COM tool. Select "Less Common Modules" you'll see the following screen:

Click on Module 34 to enter the Level Control module. Your VAG-COM will open the module and you'll be presented with this screen. Click on Advanced Function 11 for the Login screen. This function unlocks the adaptation module.

When the Login screen appears, enter in 31564 and click on "Do It". You will then return to the previous screen. Click on module 10 to open the adaptation screen.

When the adaptation screen appears, be warned that you MUST finish the entire adaptation or else you will cause an error and you suspension will be locked in Level 2 until you successfully complete the full adaptation process. If you just purchased your VAG-COM tool and it is still running in "Shareware" mode, you will not be able to complete the process. If you do encounter an error while doing the adaptation, don't panic. Simply start the process over again from the start and it will complete eventually.

Press the UP button next to Channel Number to increase it from the default value of "00" to "01". If required, press the READ button. Your car will automatically adjust it's ride height to Level 2 for calibration. Wait for this height adjustment to complete. Your VAG-COM will list four green N/A's in the top four windows and to stored value will read "402".

Channels 01-04 correspond to the four corners of your vehicle. You must complete the following steps for all four corners of your car.
01 = Left Front
02 = Right Front
03 = Left Rear
04 = Right Rear

"402" is what the allroad ALWAYS thinks is the proper setting for Level 2. The value of "402" according to the Bentley CD manual is the distance measured from the center of the wheel to the bottom of the fender in millimeters. If this is the first time you are performing this modification, and your car has been operating properly, it should be safe to assume that "402" is the proper value. You can also take a tape measure and measure this value if you care to. We will discuss secondary adjustments performed after modifying the ride height later in this document.

Knowing that the allroad at this point "thinks" it's at a 402mm setting, if we were to enter "402" in to the New Value window, we'd be making no change to the ride height. If fact, you can enter in 402 to successfully complete the adaptation process so your car doesn't go into Suspension Limp Mode. Note that although it already reads 402, you will need to delete and re-enter 402 to have to option of testing and saving the settings.

However, if you care to alter the ride height of your vehicle, we must trick the allroad into thinking that it is higher or lower than it really is. Therefore, if we want to lower the allroad 15mm, we would tell the computer that the allroad measured "417" and enter that into the New Value field. To raise the allroad 15mm, we would enter in "387". What you enter is up to you, however, there are some limits as to what the computer will take as a valid entry, so it wouldn't be a bad idea to take baby steps in changing the settings.

To change the setting, enter in the New Value and press the Test button. Once the value is accepted by VAG-COM, press the Save button.

When presented with the "Are you SURE" prompt, click on Yes to proceed.

Press the UP button next to Channel Number again and the value will increase from "01" to "02". Enter in the same number as you did in the previous section into the New Value field and repeat the procedure. Do this until you have successfully set New Values for Channels 01 - 04.

NOTE: You may wish to enter in a slightly different value for Channels 03 and 04 when lowering your vehicle if you prefer for your car to have a more aggressive appearance. 5mm seems to be enough of a difference to prevent the allroad from looking "weighted down" in the rear.

After the four channels have been set to your preference, you must save your settings. After setting and saving Channel 04, press the UP button once more so that the Channel Number reads "05". This channel is for saving your previous work.

Enter in a New Value of "01", test and save. You'll get an error, but don't worry, everything is okay. Click on the "Done, Go Back" button to exit out of the adaptation screen. That's it, you're finished!

For good measure, start your allroad's engine and move up and down through the four levels of your car a few times before going for your first test drive. Once you've confirmed that all works well, carefully go for a test drive to check to see if it is to your liking.

If you need to readjust your allroad after completing your first adaptation, it is important to remember that your allroad thinks the last adaptation set it properly to 402mm between the center of your wheel to the fender. It has no clue as to where it really is set to. Therefore, if you lowered your allroad by 15mm by entering 417 into the New Value field on all four channels and wish to lower it an additional 5mm, you DO NOT enter in 422 the second time around. This will lower your allroad an ADDITIONAL 20mm. Rather, simply enter in 407 and you car will lower itself another 5mm since it thinks it's only off by 5mm. Keep a record of your modifications so you know exactly what number needs to be entered to get your car back to stock settings. Or you can measure and use this adaptation program as it was meant to be used to get your car back to factory specifications.

17mm in the front and 13mm in the rear will make your car noticeably lower, and you probably shouldn't go any lower. As for height, 20mm was accepted by the vehicle, however, no driving was done at this level, so please excercise caution and common sense. And remember the disclaimer above!!!
Nebuchadnezzar is offline   Reply With Quote
Old 11-23-2002, 09:21 PM   #2
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very well put together.........Thanks!
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Old 11-23-2002, 10:15 PM   #3
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Good job... Great write up..

'02 S4 Sedan MT6 APR 2+
'04 A4 Avant 3.0 Ultrasport
'72 911T 2.4

* 2nd '03 ND Charity Car Show
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Old 11-23-2002, 10:43 PM   #4
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Fantastic! Thanks for the detailed info.
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Old 11-23-2002, 11:29 PM   #5
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Bra-Vo! Neb! Excellent post! You should be working for! 8-)
(Formerly known as allroadguy)
Two '05 E60's, 0ne '02 TDI, one '03 MINI
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Old 11-24-2002, 03:30 AM   #6
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awesome detail Neb!!!! Put it in .pdf and file it in the Tech section.
- C5 Avant - "the Beast" (Ha!!)
- 2005 Chrysler Pacifica Touring (Nav, Sirius, Bluetooth, Xenon, TPMS, ParkSense, DVD Changer - basically loaded)
- 2003 Vespa ET2 (modified exhaust and carb -- so I can max out at 45MPH)
- John Deere Gator (4x2) for the boy

As of November 2006:

Accessory Add-ons:
(Definition: An item that provides a specific function - in a cyclical nature - and can be removed very..very easily.)
1) OEM winter floor mats
2) OEM rubber trunk mat and cargo net
3) VW Touareg cigarette lighter flashlight
4) Thule roof bars with Evolution 1200 roof box

(Definition: A [bolt-on/bolt-off] item that enhances the appearance, performance or misc function of your car.)
1) OEM front/rear Euro black Recaro Seats (from a Euro 2003 S6 Avant)
2) OEM HID/Xenon (complete) housings (car never came with the Xenon option from the factory)
3) OEM Euro front/rear (avant) beam-style wiper blades/arms (available via
4) OEM B6 S4 Interior auto-dimming black mirror with compass and on/off button
5) OEM Euro blindspot exterior mirrors
6) OEM S6/4.2 exterior lower door trim
7) OEM S4/S6/S8 aluminum mirror housings
8) OEM Euro rear license plate panel from 2002+ facelift avant (slight MODification to US plate required)
9) ?
10) OEM Euro RNS-E DVD Navigation system with MP3, SAT control and TV input
11) Dietz 1417 A/V input to RNS-E
12) Blaupunkt ME3 DVD/CD/MP3/TV Tuner with aftermarket amplified TV antenna in windshield
13) OEM Sirius tuner (special version to work with RNS-E)
14) OEM Phatnoise Phatbox MP3 player (trunk mounted) with custom interface cable to allow Sirius tuner and Phatbox to work together -- cool!!
15) ?
16) BBS RC 17x8 ET35 with Michelin Pilot Sports (summer tires)
17) 2002+ Rear bumper with valance openings for Magnaflow 3" exhaust tips
18) OEM submarine fin roof antenna for SAT / GPS / Cellphone (GSM)
19) OEM Euro gunmetal black avant roof rails
20) 2002+ Climate control faceplate to match faceplate color of RNS-E
21) Walnut wood trim near hazard button (above RNS-E) to match rest of interior wood scheme
22) OEM Euro Avant door panels with integrated sunshades (imported from Germany to match the black leather in my Euro Recaro interior)
23) OEM Euro blacked out front grille (no chrome perimeter)
24) OEM gunmetal black lower rear hatch strip (specific part# for avant vs. sedan)
25) OEM RS6 gunmetal black interior door latches; no need to add any RS6 badges in my car (Thanks Nelson!!!)
26) OEM Euro four spoke walnut wood and black leather (special order via Audi GmbH) multi-function wheel with tip buttons and OEM phone (BT) control
27) Upgraded "618" MF/Tip control module

Coming soon:
- rear mounted removable 7" LCD panel

(Definition: Any permenant change to a part or component of your car that you cannot reverse)
1) Tray under armrest to add aux. cigarette lighter
2) OEM avant CD changer bracket MODified (to fit two large CD changers etc) - now I just use it for Phatbox, OEM SAT tuner and OEM BT module.
3) Exhaust tips MODified to add Magna Flow (#35163) 3" dual walled tip
4) Factory wiring behind Sym I to simplify installation/removal of RNS-E
5) MODified glovebox to support fitment of Blaupunkt ME3 (a biatch to install!!)
6) MODified headlight switch bezel for fitment of GALA switch for "video-in-motion" for playing Blaupunkt ME3 through RNSE
7) MODified stock exhaust and had magnaflow 3" tips welded on (see above)
8) MODified rear Euro license plate surround to house 2nd rear foglight (2001 model only came with one from the factory); US license plate needed to be MODified a bit to fit inside the narrow Euro opening.

RNS-E for C5 A6/S6/allroad/RS6 - your quest starts here - (regularly updated)
OEM submarine fin installed on
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Old 11-24-2002, 05:02 AM   #7
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leave it to a fellow korean too make a great car better and voila! moticimo!

2001 alpaka/beige,
2.7T tip 6-speed wannabee,
everything but the nav. & phone (I know where I am going, it's a guy thing),
GPS III in the glove box to assure my wife of the above comment =^),
black 332mm x 32mm stoptechs with slotted rotors,
245/45 ContiExtremeContact on
thee first ever 18x8.5 RS6 replicas ;^p,
245/50/17 michelin sport A/S (fall/spring)
225/55/17 P10 assimetricos (winter)
winter windshield wipers,
SK 12mm spacers (thanks josh for being honest),
blue H-Sport bars (soft),
402 mod 15mmF/12mmR,
MTM exhaust & lag-free,
MTM badged
MTM Sport Y-Brace,
Bosch Sport 110 BPVs,
hardwired RED passport 8500 x50 and BCT-12 scanner,
Prodiag 1.08.02 with palm Zire 71,
new front euro license plate cover with no drill holes.
stainless steel grill strips,
20% Llumar tint all around,
OEM rear side door sunshades,
tinted tail-lights, (thanks neb! i0i)
activated 2nd rear foglight,
every bulb replaced with polarg,
OEM rubbermats,
weathertech cargo mat,
debadged thule visionbox (discontinued model),
thule bigmouths on the sides,
stubby antenna (rack on)
euro antenna (rack off)
bike on rack mod,
stolen again! now on the third pair of audi valve stem caps,
debadged audi sport license plate surround,
leather eddie baur car seat and an
Audi onesie 18M for zach,
wife, 2 dogs, and now my allroad is alldone.
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Old 11-24-2002, 05:07 AM   #8
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Looking forward to trying that out, Thanks!
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Old 11-24-2002, 06:14 AM   #9
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Default Great write-up, Neb...

...much more user-friendly than that confusing recipe in the Bentley manual. I might just have to get me a VAG-COM tool.

Now you know why high-school English classes assign term papers -- for real-world practice! HPH
Howard Hanson, BocaRaton/EstesPark
Sadly, the allroad is gone,
and I still miss it.
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Old 11-24-2002, 06:35 AM   #10
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Default Hmm, I wonder. I see that they made screen03.jpg an "offtopic" jpg, but...

the screenshot is actually of the login code. I wonder if

a) they thought it was a vag program unlock code
b) if login codes for higher end mods via vag shouldn't be posted

I've emailed to inquire.
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