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MK7.5 Digital Cockpit retrofit

Reaper1

Go Kart Newbie
Location
.
Your dealer isn't going to be concerned with problems (a mismatched odometer) associated with a customer supplied part, even a new one... much less a used one. Not that I have any problem with used parts, but there's zero reason for them to worried about it, they aren't going to warranty anything beyond labor for that part anyway.

The dealer is not going to have a bench setup or make any attempt to run the mileage up. That program was created independently of a VW by some folk(s) with a can bus sniffer, curiosity, knowledge and the need to roll mileage upwards. VW lacks (in some places) all of those traits, but also has no need :LOL:.
Ok, Thought if they agreed to install they should at least do a complete job.

So what if the dealer installed my used cockpit with less miles than my car has, Is it possible to then take out the cluster that is already matched to my car and use it with the bench setup to increase the mileage and then just pop it back in the car?
 

bobloblawGTI

Autocross Champion
Location
DC
Car(s)
19 GTI SE 6MT
Ok, Thought if they agreed to install they should at least do a complete job.

So what if the dealer installed my used cockpit with less miles than my car has, Is it possible to then take out the cluster that is already matched to my car and use it with the bench setup to increase the mileage and then just pop it back in the car?
Almost 0% chance they agree to do that, if they're even capable of it to begin with.
 

Reaper1

Go Kart Newbie
Location
.
Almost 0% chance they agree to do that, if they're even capable of it to begin with.
Sorry I will rephrase, After the dealer installs my used cockpit and I drive home with a cluster that shows less miles than my car has, Is it possible for me at home to take the cluster out and increase the mileage myself, Then just install it right back?
 

Cuzoe

Autocross Champion
Location
Los Angeles
Ok, Thought if they agreed to install they should at least do a complete job.

So what if the dealer installed my used cockpit with less miles than my car has, Is it possible to then take out the cluster that is already matched to my car and use it with the bench setup to increase the mileage and then just pop it back in the car?
They don't have any options once the mileage is over 100km. It can no longer be adjusted at that point, even if they wanted to adjust it for you. If following the ODIS guided function (with a used cluster) it will ask you to enter mileage. And you will, but the cluster won't accept it. That's no fault of the dealer though. A cluster with less than 100km on it will accept the mileage.

My (ex) dealer installed my new cluster, and didn't enter the mileage. Completely their fault. I suspect they wanted to fix it, although they couldn't. At which point they fell back on the defense of "this part doesn't belong in your car anyway so this is an off book offering" for which they aren't really obligated to provide support.

To your second question... yes. All the program does is send simulated wheel speed sensor data. You could pop it out and run miles up overnight and put the cluster back in the car to drive every morning if it's your daily.

I don't know the exact number but the cluster won't let you roll more than something like 150 miles per hour (which makes sense I guess). I need to add 20,000 miles to my cluster so I will be doing it a little at a time each evening (whenever I get a setup working). And that folks... is why my car currently sits without the AID trim installed 😬.
 

Cuzoe

Autocross Champion
Location
Los Angeles
Sorry I will rephrase, After the dealer installs my used cockpit and I drive home with a cluster that shows less miles than my car has, Is it possible for me at home to take the cluster out and increase the mileage myself, Then just install it right back?
Yup, that will work.
 

bobloblawGTI

Autocross Champion
Location
DC
Car(s)
19 GTI SE 6MT
Sorry I will rephrase, After the dealer installs my used cockpit and I drive home with a cluster that shows less miles than my car has, Is it possible for me at home to take the cluster out and increase the mileage myself, Then just install it right back?
Oh sorry, misread; yes that's 100% do-able and exactly what I did (though I had someone else match the mileage rather than doing it myself.)
 

Reaper1

Go Kart Newbie
Location
.
Thanks for the replies.
So after matching the cockpit with my car the equipment i need to perform the mileage correction is:

1. VCDS cable, original or clone.
2. mileage correction program.
3. harness that has a plug for the cluster, power and OBD? or does it need a gateway plug also?
 

Lokgolo

Passed Driver's Ed
Location
Virginia
Car(s)
2015 Golf TDI S
(@Lokgolo not sure where in VA you are but this was at King VW in MD if you're closer to NoVA/DC.)
Here in Lynchburg, I have a local dealership down the road from my work. Sales side has been ass, but the service guys I worked with were amazing, actually worked with one of them at Best Buy years ago. Unfortunately, they both left the service shop to start a business together so I'm now left talking to people who I get the impression have no clue what's going on. I'll push a bit, see if I can talk with one of the techs and come to an accords.

I have my 100k service coming up (hit 99k this morning), which would be a good time to add in CP/immobilizer removal if I can get an AID and figure out what direction to take for MIB2. Still hung up on deciding if I wanna patch that unit for Nav to display in AID or get a Delphi unit, but that's for the MIB2 retrofit thread 😂

@Cuzoe, the BCU I mentioned should have been BCM (Body Control Unit vs Module, tomato, tomaato). I swear I saw you mention it as a bench requirement when trying to flash your 791A AID to B software.
 

Cuzoe

Autocross Champion
Location
Los Angeles
Thanks for the replies.
So after matching the cockpit with my car the equipment i need to perform the mileage correction is:

1. VCDS cable, original or clone.
2. mileage correction program.
3. harness that has a plug for the cluster, power and OBD? or does it need a gateway plug also?
For the cable I would only try a clone. I have both a current (HEX-V2) and older (HEX-CAN) can cable and neither seem to work with the mileage program. The HEX-V2 was guaranteed to not work although I did try. But the HEX-CAN can be put in "dummy mode" which may or may not work. Did not work for me.

Yes for 2 and 3.

Here in Lynchburg, I have a local dealership down the road from my work. Sales side has been ass, but the service guys I worked with were amazing, actually worked with one of them at Best Buy years ago. Unfortunately, they both left the service shop to start a business together so I'm now left talking to people who I get the impression have no clue what's going on. I'll push a bit, see if I can talk with one of the techs and come to an accords.

I have my 100k service coming up (hit 99k this morning), which would be a good time to add in CP/immobilizer removal if I can get an AID and figure out what direction to take for MIB2. Still hung up on deciding if I wanna patch that unit for Nav to display in AID or get a Delphi unit, but that's for the MIB2 retrofit thread 😂

@Cuzoe, the BCU I mentioned should have been BCM (Body Control Unit vs Module, tomato, tomaato). I swear I saw you mention it as a bench requirement when trying to flash your 791A AID to B software.
I will not stand for BCU :LOL:. We don't have one of those on our car, haha. And yes I did need a BCM connected for the dash to wake up. For what it's worth the only reason I updated from A > B was so the VIEW button my MK8 steering wheel would work. Outside of that the A software is "correct" for our early Mk7's (as opposed to later Mk7/7.5s like @bobloblawGTI was mentioning)

I should also note that all of us TDI folks with AID are seeing fairly regular CEL for "Glow Plug Indication" and it's pretty annoying. It can be avoided but that's another discussion.
 

brentgti

Go Kart Champion
Location
North America
Car(s)
GTI
For the cable I would only try a clone. I have both a current (HEX-V2) and older (HEX-CAN) can cable and neither seem to work with the mileage program. The HEX-V2 was guaranteed to not work although I did try. But the HEX-CAN can be put in "dummy mode" which may or may not work. Did not work for me.

Yes for 2 and 3.
I think I might have missed this, but do you have an ignition simulator on your bench? (I might be confusing myself on the bench power - might be a silly question)
 

Lokgolo

Passed Driver's Ed
Location
Virginia
Car(s)
2015 Golf TDI S
I should also note that all of us TDI folks with AID are seeing fairly regular CEL for "Glow Plug Indication" and it's pretty annoying. It can be avoided but that's another discussion.
I noticed this echoed in several places, figured I'd tackle it when I get there, but since it's come up...
I thought another user tagged you in another thread about some fix he developed and didn't want to openly share it. Did that solution not work? If not, how can it be avoided?
 

Cuzoe

Autocross Champion
Location
Los Angeles
I think I might have missed this, but do you have an ignition simulator on your bench? (I might be confusing myself on the bench power - might be a silly question)
My bench setup has the connector for an ignition switch (in case I needed to do something where I needed a key). But the setup powers up in the ignition on state.
 

Cuzoe

Autocross Champion
Location
Los Angeles
I noticed this echoed in several places, figured I'd tackle it when I get there, but since it's come up...
I thought another user tagged you in another thread about some fix he developed and didn't want to openly share it. Did that solution not work? If not, how can it be avoided?
I won't talk about how (peterdna on Instagram) said he had figured out a fix. I definitely won't discuss where he posted saying it took him hours to track down the coding but wouldn't share it. Or that maybe in a chat alleged it in was in 01 - Engine module and 17 - Instruments. Or that we had a remote session where he attempted to do this "fix" on my car although it did not work. I would never put it out there that he claimed he needed to "generate activation for glow plugs" or that during the remote session the only change I noted was in 17 - Instruments, where Byte 2 went from (hex value) 11 to 79. This byte denotes Fuel Tank and Model Variant. I will note that I paid him for his time (not a big deal, time is time). I may have commented on his Instagram post where he claimed to have solved the problem, and he may have never responded and that post may have been removed from Instagram.

Now that I haven't said any of that, it does seem to be a software issue. I get the CEL less now that I have updated to 791B. But it's worth noting that the GTD in EU was delivered with 791A and I suspect they were not delivered with intermittent CEL's, haha. Of course that's also different ECU software. Also worth noting my TDI does not have the most current ECU software, as I'm still on Phase 1. Since the AID (NAR or EU spec) was never paired with our NAR spec ECU's this problem may exist forever. Or maybe a fully updated NAR ECU with a fully updated AID will have no problems. Or maybe if I could figure out how to run the Glowplug Module Basic settings that may also solve the problem. I did replace my Glowplug relay (which has software) with the latest version, which did not change anything.

As for avoiding it... I turn the key from Off to On very slowly which (weirdly enough) seems to allow more time for the glow plug indication light. By doing this I clear the CEL after a few starts. And I can keep the CEL away for weeks/months on end. Keep in mind I'm in SoCal and my car is garaged so the car practically never needs to run the glow plugs. I'm 100% confident it's just a software issue that the glowplug module doesn't seem to know the glowplug light in the dash is working. I first got this fault as a pending code when I got home from having the AID installed... and later found that other NAR TDIs with AID (few though they may be) see the same thing.
 

Lokgolo

Passed Driver's Ed
Location
Virginia
Car(s)
2015 Golf TDI S
Damn, that wasn't a roast either.

I hadn't thought of touching the ECU, but I assume there's a significant amount of risk since that's the brain of the operation. I completed both phases of the dieselgate repair, so I should be on the latest software. VW wanted to wash their hands of the whole situation so I wouldn't expect they kept poking around with the ECU once the fixes were approved.

Do I find the ECU version in 17 - Instruments, or somewhere else?
That was a halfway dumb question. I found my answer in 01 - Engine.
 
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parapraxis24

Vdubber
Location
PNW
Car(s)
MK7.5 Autobahn DSG
Has there been a consensus on the cluster to use for the mk7.5? I have a 2018 autobahn, I thought that the 891A cluster would work, but after reading through this it seems some 2019 owners had issues with the A.

Do I need the 891B? Sucks because it’s about $300 more. The VW dealers show that the 891A version fits the 18-19 Golf R so I’m conflicted here.
 
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