Tiptronic | Posts 16+

Bodenseenessie wrote:

Hello, a brief explanation of the technology: In Audi vehicles with a front-longitudinal drivetrain, a CVT (continuously variable transmission) is installed when only front-wheel drive is used. These transmissions (developed in-house by Audi in collaboration with LUK).

Well, a CVT developed in-house...? Didn't that already exist, a long time ago? I'd call it more of an evolution. There were already a few cars with similar technology, for example, the Daf. Nowadays, many brands offer this type of transmission.

What kind of vehicle is it? A Passat?
You have an Audi ZF transmission. Apparently, they are not as optimal with diesel engines. In cold conditions, this transmission often operates "in the torque converter" with TDI engines to reach operating temperature faster, and so does the engine itself.
But another thing is whether you really have to shift at 1700 RPM with that TDI engine. Then you should expect the speed to drop to around 1200 RPM after shifting.
It won't harm the automatic transmission or the engine. However, the transmission will essentially be unable to accelerate. I suspect that this extremely early downshifting was prevented in order to avoid nervous and erratic gear changes by the automatic transmission.

Hello.

"On my TT5, it's possible to upshift manually even at 1500 RPM. Also, it now automatically downshifts in 'D' mode around 1300 RPM."

But only after a recoding to 01103 and an adaptation period for the dynamic programming to my leisurely driving style.

greetings
Olli

VW Passat 3BG Variant, engine codes AVF, EYF, year 2003, mileage 170,000 km.

I found this thread through a search - I'd like to join the discussion here (hopefully no one will mind ).

My car's multitronic transmission has a slight to moderate hesitation when starting (it only occurs between 1400-1600 RPM - not always, but more and more often). Giving it more gas usually fixes the problem.

Upon my initial inquiry at the VAG workshop about what the problem might be, they read the diagnostic memory – and found nothing stored (which I could have told them, as there were no error codes stored according to...). VAGCOM never shows any errors -> so the workshop just shrugged it off and postponed it to the next visit for time reasons.

'I recently checked the error memory again - nothing was stored. In the meantime, I did some research and discovered that the oil needs to be changed every 60,000 km in the MT model. I mentioned this to my VW service advisor, and he said it's not necessary for my car (year/model). I felt reassured - I thought the VW expert would know best - and I accepted it.'

In the meantime, something has gotten worse, and yesterday I went to my workshop again - I don't know what it could be - I mentioned again whether an oil change might help - this time, the other master mechanic looked it up on the computer and told me that the oil had been drained a long time ago ->

Currently, I have 196,000 km on the odometer. At 171,000 km, there was a long-life service, and before that, at 131,000 km, there was also a long-life service with additional work performed every 60,000 km (according to...). Service booklet - previously filled out by the previous owner (at other VAG workshops). We assumed that the transmission oil was changed at 131,000 km. An appointment has been made for the transmission oil change next week.

'Just out of curiosity, I called the workshop today to inquire whether the transmission oil was actually changed at 131,000 km. The answer was NO! This further contradicts the maintenance history. My transmission oil was last changed during the major long-life service at 68,000 km, meaning it has been inside for more than double that distance – 128,000 km!'

Okay, here's my question for the MT specialists:
Could such amateurish repairs in a workshop cause irreparable damage to the MT (presumably referring to a specific machine or device)?
Could my back problem also be related to the clutch? What is the typical lifespan of a clutch on the MT? Would it be more sensible to replace it preventatively?

Thank you in advance.

Theoretically, it is possible for the Multitronic system to be damaged if the oil is too old. The oil's function is to lubricate and remove wear particles that are generated by the mechanical components. Additionally, oil degrades over time. So, if the oil is too old, it loses its lubricating properties (they become worse), and it certainly can't effectively keep the wear particles suspended and transport them to the oil pan.
I'm not familiar with the clutch on the Multitronic; does it even have one? I think only a few specialized workshops can replace it, right? And if they can, it's probably so expensive that it's better to focus on preventative maintenance. I can hardly imagine that it would already be worn out, if it even exists.
I would first try just changing the oil. If the Multitronic transmission also has an oil filter, make sure to replace that as well. However, you usually have to mention this, otherwise they will only drain the oil, at least that's what they do with the Tiptronic.

Oh dear... another one with a damaged Multitronic system...

First of all, congratulations on it lasting this long... I've experienced completely different things in the past.

Let's get the oil and filter changed.
In principle, there are still various other potential causes of errors in the MT system.
That's why there were software updates... new throttle bodies... new intake manifolds... conversion to 7 clutch plates... completely new transmissions, etc.

'Thanks for the replies. I followed your recommendations and asked if they could replace the filter as well. The mechanic's response was, 'There is no oil filter for this transmission.' Since I'm not entirely sure I trust them, I'm asking you: Are you sure my Multitronic transmission has a filter? I would appreciate a prompt answer, as I have the appointment tomorrow.'

You're welcome, daytrader.

edit:
note: GKB is FSC certified.

edit2:
Is there a software update available for my Getribe? If so, for which model years/production codes was the update released?

Okay:

Yesterday, my oil was changed - it only cost 135.- and since then, there's been no more jerking when starting! (but I've only driven about 10km since then).

'There is definitely no oil filter for the multitronic! I've searched in other forums and also asked the second mechanic. It was strange that the initial cost estimate was 250 euros (7 liters of oil at 25 euros each + labor). However, it only took 5 liters of oil at 15 euros each, so it cost almost half as much. Anyway, the important thing is that it's not shaking anymore. I'll report back later.'

so:

Yesterday, my oil was changed - it only cost 135.- and since then, there's been no more jerking when starting! (but I've only driven about 10km since then).

'There is definitely no oil filter for the multitronic! - I've searched in other forums and also asked the second master mechanic. It was strange that the cost estimate was 250 euros (7 liters of oil at 25 euros each + labor), but it only took 5 liters of oil at 15 euros each, so it cost almost half as much. Anyway, the important thing is that it doesn't shake anymore - I'll report back later.'

Okay...


So far, I've covered 4000 km, and my MT's jerky problem is definitely gone .

Hi Daytrader, I'm experiencing the exact same problem. An oil change wasn't performed for a long period (100,000 km), even though the car was sold as having a complete service history. It was only at the Audi Center in Wolfsburg that it was discovered, based on the car's history, that no oil changes had ever been done.
Okay, regarding oil filters, there's a system filter located on the right side of the engine radiator, which also houses the oil cooler for the MT model.
This is usually replaced when the transmission is changed, and the oil cooler is also flushed at the same time. This is actually what's being done to my cars right now. Let's see if it eliminates the clutch rattling and fluctuations in engine speed.
I hope I was able to help you.

Lutz

Hi, Daytrader, I'm having the exact same problem. An oil change wasn't performed for a long period (100,000 km), even though it was sold as being properly maintained with a service history. It was only at the Audi Center in Wolfsburg that, based on the car's history, it was discovered that an oil change had never taken place.
Okay, regarding oil filters, there's a system filter located on the right side of the engine radiator, which also houses the oil cooler for the MT model.
This is usually replaced when the transmission is changed, and the oil cooler is also flushed at the same time. This is actually what's being done to my cars right now. Let's see if it eliminates the clutch rattling and fluctuations in engine speed.
I hope I was able to help you.

Lutz

My Audi A6 with the multitronic transmission then continued to run smoothly for another 46,000 km without any issues, and three weeks ago it was replaced with an A6 equipped with a tiptronic transmission.