New 6 speed gearbox method - passat '11 onwards MYP gearbox

Sorry, I'm confused now.

As far as I know the glow system on A2's operates only at certain tempertures, I cannot see how it influences 1st and 2nd gear performance.
But if it has influence on 1st and 2nd gear performance, I'm willing to learn about it.

A VTG or VNT is more efficient in a broader rev range, can give boost at lower revs in contruary to a wastegate turbo (also when turning left ;)).
 
Am I alone in thinking that an excellent suggestion?
As wished:

 
Vanes could be stuck, don't know; it would trigger under/overboost and have a faultcode me thinks? When connected up a manual vacuüm pump the VTG rod is moving fully up and down.
In 2018 a new turbo was installed according to former owner. Receipt found with car documentation is backing this up.

Maybe it's better to make a separate topic/post? Think it's got nothing to do with the 6-speeder, although same problem was mentioned in this topic before.......
I know after cleaning one of my tdi90 turbos it was much more powerful, but that was the original turbo and pretty carboned up. Followed rabs guide on how to clean it. I guess if yours is newish it might not be that though...?? Good luck
 
Just got offered a 6 speed gearbox from an 2011 Passat Bluemotion with gearbox code MDM.
Anyone having any idea if this code is similar to the MYP?
Thanks
dieselfan
 
Just got offered a 6 speed gearbox from an 2011 Passat Bluemotion with gearbox code MDM.
Anyone having any idea if this code is similar to the MYP?
Thanks
dieselfan
Evening,

Please do check that what you’re being offered is a 6 Speed Gearbox. I think the MDM Gearbox is only a 5 Speed.

Not sure if it would fit and what the ratios are but is it worth the conversion if you’re not obtaining the 6th gear.

Kind regards,

Tom
 
Just got offered a 6 speed gearbox from an 2011 Passat Bluemotion with gearbox code MDM.
Anyone having any idea if this code is similar to the MYP?
Thanks
dieselfan
The only codes proven to work so far are MYP, NTG, PTU & PTW.

The first three are practically identical in terms of the first five gear ratios to the TDI75 standard gearbox - but with an additional overdrive top ratio, whereas the latter has much longer overall ratios in gears 1-3, moderately higher 4th and very slightly higher 5th and 6th gear ratios compared to the other three.

See Post 194 for the detail
 
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Just got offered a 6 speed gearbox from an 2011 Passat Bluemotion with gearbox code MDM.
Anyone having any idea if this code is similar to the MYP?
Thanks
dieselfan
If you're looking at unknown gearbox identifier codes - go to the relevant model and year in the 7zap pages and look at this specific gearbox menu page within the menu structure - for instance :


What you are looking for at the very least is gearboxes within the MQ250 category (M for manual ; Q (for transverse in German I think?), 250 for the theoretical torque limit in Nm). Anything with a code that is MQ200 (usually smaller petrol engines) or MQ350 (1.9 / 2.0 tdi engines) is the wrong family altogether, and DQxxx are twin-clutch semi-automatics - so discount these immediately. There are 5 and 6-speed MQ250s, so if it isn't a known code or clearly identified as 5- or 6-speed in this menu, that you then need to establish by going into submenus of the intact boxes and parts to see if it is 5- or 6- speed (as well as gear ratio details). On paper, just looking at that page there is also an MUJ-code gearbox that seems to be in the same category as MYP - but it would then take some more reading in 7zap as well as here and A2Freunde (German A2oc) to establish if MUJ is really-likely to be both fitting-compatible and gear-ratio suitable for an A2 Tdi swap or just coincidentally visible along with MYP within the 7zap pages.

Worth noting that although there are also KWB and PPJ boxes listed as 6-speed MQ250s on that page, scrolling down the same page suggests these two use different fittings to MUJ/MYP suggesting that they may be sufficiently different to be incompatible (close comparison may establish it is o.k but don't quote me on it). In some cases though, this is purely a case of one box using an entire set of bolts in the same diameter but 5mm or 10mm longer than the other (possibly corresponding to the absence or presence of 5mm spacer or casing extension used on dual-mass flywheels etc) so while the box itself may be compatible some mixing / matching of fixings may be needed to marry it up properly. All I can say is - once going off-piste from the options that are known to work I would do more research and put the question out there before clicking to buy!

Just to add to the above, taking the 2011 Passat as an example, from the gearboxes page, going to the 5/6 speed manual transmission for front-wheel drive cars page then brings up a list of 5- and 6- speed boxes.

Some of the 6-speed boxes have an 0Ax prefix in the part number, and others 02S (derived from the 02J types used in A2 Tdis). MYP and PTW are both 02S, so I am reasonably certain that you also need to use this elimination process when looking for boxes : MQ250 family, 02S sub-family, then specific models with suitable gear ratios.
 
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For those who are deciding whether to go for a MYP / NTG / PTU or a PTW gearbox - I am pasting my first impression from driving Akoya (MYP) compared with Audrey (PTW), copied from this post in my blog thread:

Not surprisingly the two cars - both remapped six speed TDI90 ATLs - drive very similarly overall. The biggest difference is in the two different gearboxes and specifically 3rd gear: in Audrey, 30mph is 1800 RPM which is perfect for my driving style in urban areas; you can drop down and accelerate around this speed as traffic conditions dictate and you’re always in the right gear. The same speed in the same gear in Akoya is 2000 RPM - an engine speed which sounds a little busy to my ears and makes you want to exceed the speed limit by a few MPH and change up into 4th, although even then the revs drop to between 1500 - 1600, which then feels a little too low.

Perhaps other more subtle differences between the two will come to light with time, but to me there is otherwise nothing else between the two in almost all other respects that stand out on first impressions.
 
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Thank you Spike, you are a font of wisdom. Rob does not want to try it for a variety of good but Vince at Stealth seems keen. As I want to do both my 90 and 75Tdi I am looking for another Timmus style intercooler as I want to do that at the same time.

For anyone following this thread, George's early TDi has the old mechanical speedo drive and the 6 speed boxes don't cater for this.
The 'work around' is to swap the diff (with worm drive gear for the speedo) and housing from the early box onto the 6 speeder.
Both boxes are from the 02J family so it's a straight forward job with no special parts or machining needed. You just need the expertise and tooling for the gearbox strip and rebuild
The 90 TDi has the later 'electronic' speedo using signals from the ABS system so does not need the mechanical speedo conversion

Cheers Spike
 
Hello everyone;

This past saturday I installed in my car a PTU gearbox from an Audi A3 1.6 TDI from 2014 with 122.000 km (75.000 mi).
I only needed to make the support for the cable carrier and install the flanges from the original gearbox, and everything was perfect. Exact same gear ratios as the MYP.
I also replaced the oil in the gearbox with the OE oil that corresponds to this gearbox and year (G 052 527 A2) and installed a new clutch
from Sachs.
I installed the original starter that comes with the original gearbox 02Z 911 024 L (2 kW starter that start the engine easily, faster and with a better sound). The interference between the starter pinion and the flywheel is perfect in the direction perpendicual to the axle of the gearbox but in the direcition parallel to the gearbox I am missing around 4,5 - 5 mm and this is not ideal for long term operation. I will remove around 4 mm from the starter motor with a milling machine to improve the interference between the pinion of the starter motor and the flywheel.

The noise of the engine at motorway speeds is much much less. Also the gear knob travel is much less with the PTU gearbox (I prefer the old gearbox in this particual topic) but in such a way the gear change feeling is more precise.

I am very disapointed with the noise that comes from the gearbox. The diferential in my old GPK gearbox had a lot of play and the noise when the engine was between holding/pushing the car was horrendous. With this "new" gearbox with new OE oil the noise is much less but is present. I don't know if anyone has experience with these new gearboxes like MYP, PTU, PTW ... in reference to differential clearance and low engine load noises. But from my point of view, very dissapointed with Audi/VW with the sound aspect of the gearboxes after only 120.000 km and 6 years...

Kind regards,
Hola Miguel, how is it going with the unpleasant noise of your 6 speed PTU gearbox? Did you find something incorrect, and if so, was it clutch related or more a gearbox bearing related?

Cheers, Menno.
 
Hola Miguel, how is it going with the unpleasant noise of your 6 speed PTU gearbox? Did you find something incorrect, and if so, was it clutch related or more a gearbox bearing related?

Cheers, Menno.
Good morning Menno,

First of all, sorry for the late response. I drove around 15.000 km (9300 mi) since the gearbox change. The noise is there and from my point of view the noise comes from the gearbox. I really don't know if the sound comes from the bearings or from the differencial. Recently in my house we have a new VW GOLF VIII 1.6 TDI with 5 speed manual gearbox. The noise is there as in the PTU gearbox, but you need to listen very carefully. I suppose that partially will be due to less km and partiall due to better insulation in the GOLF VIII.

Anyway, I am very happy with the new gearbox, now I can cruise in the motorway at 120 km/h with the engine at "only" 2100 rpms. My car is not remaped but I always use diesel with cetane number 55. In addition, the region where I live is very mountainous and it is very common to find slopes on motorways with continuous 10km climbs where the slope is between 6-7% at specific points, even more. The car has no problem going up these hills with cruise control in sixth gear (but with a very small margin). I even have slightly higher profile tires (175/65 R15) to improve ride comfort a bit. These tires have as a result a gear ratio 3% longer than the original 175/60 R15 and by lifting the car about 7 mm they worsen the aerodynamics of the A2.

Kind regards, Miguel.
 
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Finally, the MYP is assembled with EWQ bell housing. It's been a journey, to say the least, but with all the help from the forum members (you know who you are), was a lot easier. Thank you all. MYP is topped up wit oil and patiently waiting for the install. Lot of photos taken, so I owe a write up later this week.

Regards,
Boris
Hi @67boris,

I’m about to refurbish the bearing of my MYP gearbox, but there is little to found on the web. Can you (maybe PM) help regarding your approach? You said you made a lot of pics and was thinking about a write up. I would appreciate any help.
Thanks in advance.

Kind regards Duncan
 
Check out this and several following posts I shared with Boris which have some good links to gearbox rebuild info


Cheers Spike
 
Hey, guys.
A stupid question here.
Is a MYP gearbox always the MYP gearbox or do they have modifications according to cars they are installed in?
 
Hey, guys.
A stupid question here.
Is a MYP gearbox always the MYP gearbox or do they have modifications according to cars they are installed in?
I think it's a case of being the. Mine came from a Passat 1.6 Bluemotion. Only thing to be aware of is that your fore-aft gearshift reduces by about 1/3rd as the internal selectors must (I think) be different in the MYP vs the A2 boxes. I actually machined a modified gear selector arm for mine which restored the original throw back at the gear-lever as I found the gear-change downright nasty before. I don't think anyone else has done this though and most people seem very happy.

Probably the best mod you'll ever do to an A2. Btw, mine pulls it perfectly well with no remapping and well over 200k miles.
 
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