I need some help with finding a suitable file to rollback to.

 

The VCDS reading suggests a 9979 file on the ECU.

 

When a tuner plugged in software, it suggested the earliest file available was 9977, which is still a fix file.

 

My VAG number ends in SE, which apparently has something to do with what files are available.

 

Before I had the tuner come out, I'd checked the flashfile.de website, and it confirmed that only 3 files were available based on my VAG number, 9977, 9978, and 9979.

 

Is there a way to work out what file would be suitable for my car? It's a March 2015 Elegance 170bhp, DSG.

 

If no pre-fix file is available, is it worth getting the earliest of the fix files, 9977, put on?

Have you actually got the VCDS log file, without that it's all guesswork.

If you don't have scans of the car before the NOx updates, you are going to find it hard.

 

I cannot help without information.

I don't have any log files from before the NoX update, as I bought the car with the fix on it.

 

I do have VCDS, so can get a fresh log file, if that would give any clues?

 

Thanks!

I can try and look for you if you can get a scan of the engine, issue is that some ECU numbers stayed the same, but a fair few swapped for the NOx update that doesn't help.

Should I post the log here, or send it to you as a private message? Not sure if it has any "sensitive" data, other than my VIN and VINID...

Just now, shilling said:

Should I post the log here, or send it to you as a private message? Not sure if it has any "sensitive" data, other than my VIN and VINID...

It's your data, so either way if fine by me.

1 hour ago, shilling said:

Before I had the tuner come out, I'd checked the flashfile.de website, and it confirmed that only 3 files were available based on my VAG number, 9977, 9978, and 9979.

I suspect that's all they had on that website.

2 minutes ago, Urrell said:

I suspect that's all they had on that website.

 

Yes, agreed. But even the tuner who came out to me couldn't find one older/ pre-fix number on his tuning software's server database!

 

This is despite me asking him before confirming to check that a pre-fix file was available. He said he'd only know once he plugged his laptop into my car's OBD2 port.

Your current flash file loaded

 

Address 01: Engine (J623-CFJA)       Labels:. 03L-906-018-CFF.clb
   Part No SW: 03L 906 018 SE    HW: 03L 907 309 AG
   Component: R4 2.0l TDI   H25 9977

 

 

It probably left the factory at this version Pre NOx

Sadly not seen this available as they only had to release files for emissions fixes, and if there was say 6360 for another issue, that would be out there for example.

Address 01: Engine (J623-CFJA)       Labels:. 03L-906-018-CFF.clb
   Part No SW: 03L 906 018 SE    HW: 03L 907 309 AG
   Component: R4 2.0L EDC   H25 6356

Thanks varooom! That's really useful info. I think the tuner left 9977 on my car when he'd been so that's why I've got that instead of the previous 9979!

 

Is the second part of your message suggesting that I could consider 6356 or 6360 files for my car, at my own risk? What is the worst case scenario if one of these files is loaded on, given it's a high probability that's what it left factory with? Bricked ECU?

6 minutes ago, shilling said:

Is the second part of your message suggesting that I could consider 6356 or 6360 files for my car, at my own risk? What is the worst case scenario if one of these files is loaded on, given it's a high probability that's what it left factory with? Bricked ECU?

The version 6356 is real and what the ECU left the factory with, the 6360 was a bogus number I made up to say that unless a different 6xxx, 7xxx or 8xxx version was released for something else, that the only file is 6356, but they don't release factory files (but a tuner may have ripped that out, and indeed they have)

 

So yes, odds are yours left factory with 6356 version, but that was never made available as there was no update made until the NOx issue, and they are in the 9970+ ranges.

Ah, gotcha! So I need to find a tuner who has a copy of 6356 file, or not bother! I really want the car rolled back, although I don't currently have any issues, and it's done 73k miles, 3kish in my hands. Ideally if I can get it rolled back, I want to get a tdi tuning box and run it at a medium level of tune, similar to a stage 1 map write.

I might ask on the FB reversal group if someone has the requisite file, and aren't 200 miles away from me!

 

Really grateful for your investigative help, varooom! Thank you!

Best of luck in finding a tuner with that file you want, at least you know that someone somewhere probably done a read on the 6356 file.

I wrongly assumed you were having a Roll back and a remap.    The tuning box works as well as It will on the current Fix / engine management / map does it not.     If doing a roll back best just get a remap IMO. 

3 minutes ago, toot said:

I wrongly assumed you were having a Roll back and a remap.    The tuning box works as well as It will on the current Fix / engine management / map does it not.     If doing a roll back best just get a remap IMO. 

The initial plan was to get a rollback and a stage 1 remap, but I'm leaning more towards the tuning box as it gives me options to tune up/down within it's 7 custom maps. I'm hesitant to get tuning box or a remap whilst my car is running a fix file, but don't know enough about the implications.

 

Any thoughts?

Personally it would be to leave well alone and have the cash money for other serviced items and fuel.    But if it is something you really want get a tuner that can Remap it for improved performance and swerve a Tuning box. 

5 minutes ago, toot said:

Personally it would be to leave well alone and have the cash money for other serviced items and fuel.    But if it is something you really want get a tuner that can Remap it for improved performance and swerve a Tuning box. 

Well, the fixed cars seem to have reported reduced power, increased engine noise, increased regens on the dpf, worse throttle response, and potential injector issues, so getting the rollback is actually considered a useful spend of cash. Even without either remap or tuning box, just having the original ECU file is touted as an improvedment.

 

I'll keep trying to find the original file for my car, get that put back on, and then drive the car for a while before going down the tuning route.

The point is is our 2.0 TDI.  ok.    If I was gifted a Fixed 1.6tdi I would automatically get that rolled back and remapped. 

Edited 8 December, 20223 yr by toot

21 minutes ago, toot said:

The point is is our 2.0 TDI.  ok.    If I was gifted a Fixed 1.6tdi I would automatically get that rolled back and remapped. 

Yeah, I've also got a 2.0 TDI DSG, and in the 3k miles I've done, no problems (touch wood), but one goes down rabbit holes with new toys, and that's how I've ended up at looking into getting the fix reversed.

 

If my car's original file can't be found, then I'll have no choice but to keep things as they are, and hope none of the alleged fix problems manifest.

 

Currently getting a not terrible 42-47mpg, so it's not even a fuel consumption concern for me. ****ty little smart car I had was at best giving me 50mpg, so not the end of the world.

1 minute ago, shilling said:

****ty little smart car I had was at best giving me 50mpg, so not the end of the world.

 

You had the wrong one!

 

My 451 44hp cdi sipped fuel ... and I stupidly sold it for a 1.6tdi Greenline that struggles to hit 40 mpg. 

24 minutes ago, b1ackb1rd said:

 

You had the wrong one!

 

My 451 44hp cdi sipped fuel ... and I stupidly sold it for a 1.6tdi Greenline that struggles to hit 40 mpg. 

I had the 54hp cdi, but I drove it like I stole it! It was hilarious overtaking massive ECO engined cars on the motorway, but not so much when it was a tad windy! 🤣