How to identify gearbox

[JiSingh1]

Hi all,

I bought a gearbox listed as the correct code for my car, from a VAG specialist breakers.

Someone collected the gearbox for me, and when I've had a chance to look at it, it seems the code has been filed down for some reason.

Any other way of identifying if it is the correct one?

Thanks

See images here: https://imgur.com/a/8dCZilb

[iichel]

your gearbox code is written on the PR sticker below the boot carpet. it's near the engine code. 3 cyphers.

[2226]

Those part numbers are for the gearbox housings.

0DQ 301 103 C seems to be the gear housing for the QTR or SEP variant of the 02U (I think). Look below the gearbox end cover; there should be an indicator if it is 02U or 02T.
The 0DQ 301 107 B is listed as the clutch housing for those.

Never looked into the differences between a 02U and 02T though. I have a 02T PPA in my 2016/2017 1.2TSI CJZD 110HP.

So it's either a QTR or SEP which from recent discussions here would put them as identical save for a negligible ratio different on 6th gear (higher tooth count on the SEP).

Why someone would file off the identifying marks and manufacturing date is beyond me unless they sold you a earlier QTR as a later SEP.

[JiSingh1]

your gearbox code is written on the PR sticker below the boot carpet. it's near the engine code. 3 cyphers.

Sorry, I meant to say that I have a QTR code as identified on the PR Sticker. This was sold as a QTR, so correct one but the code stamp has been removed as you can see so know I'm stuck as to refund it or just risk it.

[JiSingh1]

Those part numbers are for the gearbox housings.

0DQ 301 103 C seems to be the gear housing for the QTR or SEP variant of the 02U (I think). Look below the gearbox end cover; there should be an indicator if it is 02U or 02T.
The 0DQ 301 107 B is listed as the clutch housing for those.

Never looked into the differences between a 02U and 02T though. I have a 02T PPA in my 2016/2017 1.2TSI CJZD 110HP.

So it's either a QTR or SEP which from recent discussions here would put them as identical save for a negligible ratio different on 6th gear (higher tooth count on the SEP).

Why someone would file off the identifying marks and manufacturing date is beyond me unless they sold you a earlier QTR as a later SEP.

So that SEP / QTR discussion was my post lol, but I found this QTR box on sale from a specialist breakers so thought il try it.

This was sold as a QTR. The garage also sent me the ETKA VIN readout for the donor car - and it's a CHZC engine, QTR gearbox, same as mine, with the car produced in November 2016.

I don't think SEP was out until 01/2017.

So either it's a 5 speed that's been put in, or I'm just not sure what other reason they've filed off the markings for.

[2226]

Lol. Yes, you're right, it was your post.
What's happening is I'm just aging rapidly.

I would risk it.

Don't know what you mean by a 5spd being put in.
The part numbers of the housings point to a 02U. Don't see how it can be a 5-speed. Trying shift through the gears on the shift tower and count how many gears you hit.
According to ETKA the housing numbers of the 5-speed are completely different.

Maybe they were just ignorant to what those numbers meant and just filed it off thinking it was some personal identification thing. Which in itself is a bit strange for a specialist breaker.

Also get that gearbox into each gear and turn it by input shaft or output shaft and listen for any strange noises.
I wish I did that when I bought a 020 many years ago only to find out that 5th gear had stripped the shaft splines (apparently a 1.8T will do that to some 020 ).

[JiSingh1]

Lol. Yes, you're right, it was your post.
What's happening is I'm just aging rapidly.

I would risk it.

Don't know what you mean by a 5spd being put in.
The part numbers of the housings point to a 02U. Don't see how it can be a 5-speed.
According to ETKA the housing numbers of the 5-speed are completely different.

Maybe they were just ignorant to what those numbers meant and just filed it off thinking it was some personal identification thing. Which in itself is a bit strange for a specialist breaker.

It's ok, I forgive you
Sorry, not too clued up sometimes, and work is getting the better of my brain, lol.
I do not have a 02U or 02T, it is a 0DQ according to part numbers and ETKA/ELSA, and it is only fitted to CHZC engines.

Question - The 0DQ 301 103 code stamped on the gearbox, and there is the two letters below it, is the indented/punched letter the fitted option? Meaning it is 0DQ301103C and not 0DQ301103A. That is my thinking, correct me If i'm wrong.

Only because ETKA says 0DQ 301 103 A is a 5 speed variant (QTS) AND shares the same clutch housing 0DQ 301 107 B, so just want to double check, that one letter could be the difference between a 5 speed and 6 speed, lol.

Breakers think it was filed off by the owner of the original car, and have only gone of the VIN to identify the code, so no luck there.

Trying shift through the gears on the shift tower and count how many gears you hit.
Also get that gearbox into each gear and turn it by input shaft or output shaft and listen for any strange noises.

Is it possible to do this without the gearbox on the car? Just not sure how to check gears etc. without fitting.

[2226]

You have the 0DQ 301 103 C.
The stamped nub indicates the option.



02U/0DQ/02T/WTF ... VW has invested in the same can of alphabet soup and is getting their money's worth out of it.
Ditch the car... buy a Toyota... at least the part numbers and engine numbers probably make more sense.

You can operate the levers on the shift tower to select gear. Just mess with it and you will see how it works. You can't hurt it. There's no clutch pressure. If it feels a little difficult then turn the input shaft by hand slightly. That should line all up inside and shift it. Never really had to do that though on other boxes I've had (VW 020, Audi 01E); ripping through the shift pattern usually gets them into gear when there's no clutch.

[2226]

I'm curious now. Can you take some photos of the complete gearbox from all sides?
I don't understand that "without flanges" thing.

[JiSingh1]

I'm curious now. Can you take some photos of the complete gearbox from all sides?
I don't understand that "without flanges" thing.

I've added some extra photos to the album I originally posted

Hopefully something there helps.

Also, I do have 02U part numbers aswell as 0DQ on there.

Got a feeling it's an SEP gearbox someone has fitted so removed the QTR code.

Thanks

[2226]

I can't quite make out that number of the rear housing.
02U 201 211F or 02U 201 711F?
Can't find either anywhere.
The "F" might just be indicating 2015.

But the location of the part number would line up with documentation pointing that to be a 02U.

Also selector weight part number 6CO711046B I see listed for a CHZB/CHZC 2015-2017.
I'd check that selector against what you have in your car now. Maybe swap those over.

I think this is 02U SEP.

[2226]

Also, I do have 02U part numbers aswell as 0DQ on there.

Well they seem to be the same thing.
Lots of parts re-used. One small change to a casting probably defining the final part number.
Like your "C" variant. It's the same casting, but maybe some external or internal machine is different from the "A" variant.
Perhaps the "C" variant of the 0DQ part is the change needed to use it on a 02U? Who knows.

Have a look at the main gear housing on my 02T:



Probably shared with a ton of other applications, each variation is probably a slight change to a mount, or slight clearance somewhere, etc.

But this reminds me, I still need to clean this engine bay after the mud bath it endured a month ago.
I'm still finding mud!

[JiSingh1]

02U 201 211F or 02U 201 711F?

02U 301 211 F - You can find it but hard.
However, ETKA says 02U301201C/E for a 2016 Polo, so totally different.

Also selector weight part number 6CO711046B I see listed for a CHZB/CHZC 2015-2017.
I'd check that selector against what you have in your car now. Maybe swap those over.

If I was fitting the gearbox myself, I could check but paying someone and I doubt they will be bothered to check and compare, but will see what I can do.
For some reason, my PR sticker does not have 0EN, 0EJ or 0EM, so can not check the correct one on ETKA. Guessing 6CO711046B as you say, but seems to be fitted all the way up to 2021 or something like that.

Probably shared with a ton of other applications, each variation is probably a slight change to a mount, or slight clearance somewhere, etc.
But this reminds me, I still need to clean this engine bay after the mud bath it endured a month ago.
I'm still finding mud!

Yep makes sense, stupid things are so complicated. If the code wasn't rubbed off then I wouldn't complain, lol. Would of been solved at an instant.

My car needs cleaning too, but probably locked up the brakes and stuff right now since it's not been driven for a few weeks, lol.

I also think it is an SEP gearbox. The green marker on the bolts etc. makes me think it is a rebuild or something.

[2226]

Green marker probably just anti-tamper markings.
My dealership would always mark my oil filter with yellow marker. That way they can say I messed with it. Jokes on them, they're the ones that screwed up the oil change.

I'm sure they'll check the lever, just ask them to confirm. They have to deal with it anyway when refitting the linkages. Doubt it'll make a difference though.

Who is fitting the gearbox?
If it was a trusted knowledgable mechanic I would have them check and maybe refresh the rear main seal since the gearbox is out anyway.

I think you'll be fine with this box. Everything seems fine. Sometimes best not to overthink it.

[2226]

Oh, forgot, often breakers will mark their parts so they don't get people trying dodgey return deals.