The issue my car is having is no Reverse and it is not driveable because in D, 4, 3, or 2 it takes off fine, but when it is going to shift, it shudders, and stalls like it is downshifting. The car is not in limp home mode, and this is what the vag com shows. I erased code, and tried reverse again, and the same code reappeared.

Can anyone tell me if a simple switch like this would cause these issues?

Here is everything the vag com pulled:



Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,16,17,25,35,37,45,55,56,57,67,75,76 ,77

-------------------------------------------------------------------------------
Address 01: Engine Labels: Redir Fail!
Controller: 8D0 907 557 P
Component: 1.8L R4/5VT MOTR AT D02
Coding: 06051
Shop #: WSC 06335
VCID: 3D0DBAF7247F
No fault code found.
Readiness: 0010 0101

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01V-927-156.LBL
Controller: 8D0 927 156 BM
Component: AG5 01V 1.8l5VT USA 8508
Coding: 00000
Shop #: WSC 00000
VCID: 79856EE770D7
1 Fault Found:
00526 - Brake Light Switch-F
27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL
Controller: 8E0 614 111 P
Component: ABS/EDS 5.3 FRONT D31
Coding: 0273004133
Shop #: BB 24304
VCID: 2B2984AFCA0B
No fault code found.

 

It is nice to see vag com scans posted up! Not sure why you are getting a brake switch code in the TCM & not in the ABS. Go into ABS , check the data for the brake light switch. Is it showing on & off when applying the brake?

 

Ok. Seems that I did a search for this brake light switch code, and it seems you will get this fault code if you do not depress the brake while it is running the scan. I cleared code - ran it again, this time pressing on the brake pedal, and voila! Ok....but now, it leaves me in even a more depressing state.

Now, I run the vag com and get absolutely no errors! But, I still have no reverse, and the inability to shift past what Im assuming is 1st gear in all the other gears. Also, tiptronic is not working (put in tiptronic and nothing happens - no gear lights up, nothing when you go + or -). Other than this, everything else is in great shape. Trans shifts into P and neutral fine - the foot on the brake pedal lights up and works as it should.

About the only thing I am left with is that the fluid level was low or the trans is completely shot. To test the former, I jacked up the car as level as I could get it and removed filler plug...nothing came out, so I filled with about a quart and a half till it overflowed, I cant run the car, but I let it idle, and added a little bit more, but it didnt take much....no change or improvement at all. I was hoping that at least the forward gears would improve - but nada.

Has anyone ever experienced this issue, or know of any possible solutions? I have vag com lite, and it seems to be pretty limited, perhaps there is someone in the Austin area that could held a fellow out? I would be happy to pay for gas and some Shiner Bocks. Thanks.

 

I think it's time to stick a fork in it.

Did you check for tranny codes to show up again?

 

Yes, I checked several times. I even put the old TCM back on to see if it would trigger a code. No codes. If the tranny is fried, shouldnt it give me something?

Now, im beginning to think maybe its the Multifunction switch....I bought a new one, but the part numbers are not the same. They assured me it would work on my Audi, but I went in and checked on another site and it states that the new one I have is not compatible.

The new one is part no NS339,

My old one is part no 0501 209 896

Perhaps I still have a bad multifunction switch? But shouldnt that trigger the vag com to throw a code? I guess Im just hoping here...but I really dont think this car is worth the cost of a "new" trans.

 

This was my scan result about a year ago,since then,i got my automatic transmission replaced.


what advice would you give to me,regarding my 4th gear,not catching but jerking,when trying to shift into that gear?

I had the transmission fliud checked,it turns out,its Full! so that's not the cause of the slippage and jerking,it will shift three times,after a dead stop at a light,then when trying to shift a 4th time,jerking about 3-4 times,then it RPM will go as high as 4000,while going 20-25 mph won't shift into the next gear.

I never had a shifting issue,i thought if there was a issue with my tranny,it would be noticable over a period of time and not just all of a sudden? just started last week.

I can drive it on the high way,only if i pull in the break down lane,shut off the car,then turn it back on,then it will shift in 1st,2nd and 3rd,then jerk a few times when trying to shift into 4th gear,then it'll let me get up between 50-55 mph at around 4000 RPMs,i drive it 40 miles,to springfield,mass from bridgeport,CT there and back,with no problems.

when i hit it with my vag-com it comes up with a few hits,i need to get my laptop and copy n paste it here later,says "4th incorrect gear ratio" and a few other things.

I'll edit this with the info from my vag-com scan,later today. if anyone can give me some suggestions,from what i have posted,thus far,that would be awsome.

update: VAG-COM Version: Release 311.2-N


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

Address 01 -------------------------------------------------------
Controller: 4B0 906 018 CH
Component: 1.8L R4/5VT G 0001
Coding: 16251
Shop #: WSC 63351
2 Faults Found:
17887 - Brake Boost Vacuum System: Mechanical Failure
P1479 - 35-10 - - - Intermittent
18034 - Powertrain Data Bus: Missing Message from TCU
P1626 - 35-10 - - - Intermittent
Readiness: 0000 0000

Address 02 -------------------------------------------------------
Controller: 8D0 927 156 DF
Component: AG5 01V 1.8l5VT USA 1010
Coding: 00002
Shop #: WSC 06435
3 Faults Found:
17118 - Gear 4 Incorrect Ratio
P0734 - 35-10 - - - Intermittent
17114 - Incorrect Gear Ratio
P0730 - 35-00 - -
18258 - Powertrain Data Bus: Missing Message from ECU
P1850 - 35-10 - - - Intermittent

Address 03 -------------------------------------------------------
Controller: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO D10
Coding: 0273004284
Shop #: BB 24334
No fault code found.

Address 08 -------------------------------------------------------
Controller: 8D0 820 043 P
Component: A4 KLIMAAUTOMAT D58
Coding: 00140
Shop #: WSC 63351
No Faults Found
or DTCs not supported by controller
or a communication error ocurred

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 8D0 920 980 Q
Component: B5-KOMBIINSTR. VDO D12
Coding: 02244
Shop #: WSC 19411
1 Fault Found:
01315 - Transmission Control Module
49-10 - No Communications - Intermittent

Address 35 -------------------------------------------------------
Controller: 8L0 862 257 N
Component: CV-Pump, Alarm, RC D16
Coding: 16232
Shop #: WSC 63351
6 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch: Driver's Side
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
00955 - Key 1
09-00 - Adaptation Limit Surpassed
00956 - Key 2
09-00 - Adaptation Limit Surpassed

Address 45 -------------------------------------------------------
Controller: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00101
Shop #: WSC 63351
3 Faults Found:
01380 - Alarm triggered by Anti-Theft Sensor: Rear Left
35-00 - -
01382 - Alarm triggered by Anti-Theft Sensor: Front Left
35-00 - -
01383 - Alarm triggered by Anti-Theft Sensor: Front Right
35-00 - -

End -------------------------------------------------------

I have no DTC's as of today. I posted this just to give you an idea of what a vag-com readout would look like,if a tranny had a mechanical issue.

P.S.

THIS IS NOT MY CURRENT SITUATION! Just trying to help out the OP,so he has something to compare with another Automatic B5,that once had a transmission failure.

 

The incorrect gear ratio faults are typical of a slipping tranny. That is usually a death code unless the fluid is too low.

 

I dont know enough about transmissions to be much help, but thanks for posting the old vag com posts. Perhaps there is hope for my case because I am getting no codes at all. I am beginning to think maybe I have the incorrect multi function switch installed.

I am going to reinstall the old one since it could be in working condition. It was the first part i switched. So if it is the wrong one, then changing the TCM would not have helped, and perhaps the trans fluid was low. If anything, perhaps putting the old one will make the vag com give some codes. If I get the multifunction switch code, then I could just have the wrong part installed. It is my last hope before turning it over to a professional. I am going to start looking for a low mileage 1.8T transmission.

Has anyone ever switched out a 1.8T transmission? I am wondering how hard it would be. I am not a prof. mechanic, and have only the basic tools, but if it is easy enough to unbolt and lower, maybe I could do the swap??? Maybe with 4 rhino ramps to give me enough clearance?

The toughest job I have done to date is upgrading a turbo on a Saab 9/5...and that was not very fun.

 

I noticed in your scan print out that the coding for your transmission does not appear to be correct. If you are Quattro you should have a 2 in the last digit, see below from Ross-tech wiki: The 5th digit should be 1-4. your scan shows a 0. I am not sure if this would cause the trouble or not, but sure seems strange to me. Could this have been changed by mistake somehow?

02-Auto Trans : -- KWP-1281
VCDS works fine

Recoding Tiptronic:

In the newer cars, there are coding options for "Old" vs "New" "Tiptronic strategy". The "New" stategy (introduced in 2000 I think) is much more "automatic" than the old. To get the "Old Tiptronic strategy" where it won't downshift unless you come to a complete stop, I believe you have to change the coding in the following manner:

[Select]
[02 - Auto Trans]
[Recode - 07]
Enter the coding below
[Do It!]

Write down the original coding for future reference.

Look at the fourth digit in the coding (Cylinders):

0 or 1 - "New-style Tiptronic"
2 - "Old-style Tiptronic"

Look at the fifth digit in the coding (Market version):

1 - "Rest of world, quattro"
2 - "USA, quattro"
3 - "Rest of world, FronTrak"
4 - "USA, FronTrak"

So, for a USA model A4 quattro, if the original coding is 00002, and you want to change to the "Old-style Tiptronic" strategy, change the coding to 00022.

PS: As always, you play with stuff like this at your own risk. The "old" strategy is documented by VW only for "testing" and they explictly say that the car should be recoded the way it was before giving it back to the customer.

 

Good catch but your wrong in the coding format....

The 5th digit is the region code(2 is USA) and the 4th digit determines the (old style or new style tiptronic) by your calculation,22 would be the new style tiptronic,which isn't correct. 00022 would be the coding for "old style tiptronic" and a region of "USA quattro"

He would need to have a coding of 00002 or 00012 for the "New style triptronic" and the "USA quattro"

Hence my coding of my Transmission Control module from my vag-com readout,being i have a 01 A4 B5 Quattro USA model.

Like i said,very good catch,i missed it too. The fact that his TCM is reading 00000 says to me,that it may be his TCM and not a mechanical issue with his Transmission,don't quote me on it,though.

He should code it to 00002 and see how the transmission behaves or replace the TCM and then see if anything changes.