[quote name='Mister MMT' post='686399' date='Oct 29 2007, 01:02 AM']Hello MMT drivers and debaters,
I’ve been reading all the messages on problems with the MMT gear box and found it extremely interesting. This message is my first one here, and I apologise for its length, if that seems a bit unusual.
I own since one year a CV MMT built in the fall of 2004. It totals 23.000 miles, 12.500 of them by me. Like several among you, I’m a satisfied MMT driver. My car hasn’t had a single problem so far! I bought my CV in exchange for a Corsa 1.2 Easytronic. The latter had a simpler robotized manual gear box. I had been using it daily for five years without any problem. I’ve been driving other automatic gearbox cars like a Rover Vitesse (sold after 100.000 miles), and a Picnic (which we still own: 120.000 miles).
I had tried the CV MMT three times before buying it. It took me a couple of weeks to adapt my driving style to it, and after that, I became very pleased with it. The Toyota dealer I bought it from offered me a 2 years Toyota extension, which just started running. For the moment, I feel safe.
I agree with all those saying this is not a conventional automatic gearbox, and that the user best adapts his style according to the recommendations provided by some of you.
I am a rather active member of the French TCVII Forum. Over the last 2 ½ years, we had about five cases of MMT failures, 4 of them were concerned with the “N” Symptoms. All of them were repaired under guarantee, albeit not always correctly from the first time. No relapses have been reported. All these owners are satisfied MMT drivers and continued to be afterwards.
My reading made me aware of the fact that in the UK, the MMT models are much more popular then in other countries. To me, it seems normal that there are more reports here on failures. We have many more reports on failures with diesel injectors, simply because in France, 75% of the TCVII are sold with this type of engine, and none of these is MMT equipped. I must say I do not consider the number of failures reported here over a 2 ½ years period to be a landslide. In the absence of more information, they could as well indicate a nice robustness, since no car part is fail safe.
Reading the messages, however, instructed me about [b]several points that are very useful to know[/b].
1. Several times, repeated failures occurred on the same car, even when the complete system got repaired. In some cases, the workshop apparently did not exchange all the parts they should have, and this may have caused some of the relapses. It can therefore be strongly recommended that customers enquire for the full details of the repair, which should be effectuated according to the procedure described in Service bulletin CP5013 from May 2005. I can understand the despair and dismay of the owners who had expected better.
2. In some cases, failure occurs in circumstances which were considered dangerous by the drivers. An investigation is being conducted by the VOSA. This came as a big surprise to me, and seems worrying indeed. In my opinion, if officially recognized as authentic, one such case is one too much. I hope this investigation will shed light on the question.
3. One forum member tried obtaining from Toyota reliable figures on the percentage of MMT cars which have suffered from failures. Unfortunately, he was turned down. I sincerely regret this, since in this way, Toyota contributes to the persistence of all kinds of hypotheses, which cannot be verified. I’ll give an example below. Unfortunately for us consumers, this kind of information is never provided by any of the car manufacturers, unless forced by law. I hope they realise how this policy can tarn a reputation in a highly competitive marketplace. Forums like this attract a wide readership, and many people tend to overreact a bit upon reading even a few reports of people understandably devastated by their bad experience.
4. A somewhat more reliable source for enquiring about customer satisfaction and car reliability then a Forum are the yearly JD Power reports or the like, and the statistics of car assistance associations (I do not know their name in the UK). Globally, on the Continent, the TCVII, Corolla and Yaris models seem to give satisfaction to their owners and rank among the most reliable cars on the market. Unfortunately, for the MMT models, no separate statistics are known, although I may have missed some.
This brings me to my final point, and the reason [b]I wish to contribute to your ongoing debate[/b].
Another member, known as reliable and serious, has reported a statement of a technician of his workshop, according to which the CV MMT cars built until December 2005 were all having a construction failure known to Toyota, and that sooner or later, they would all go down the road to failure. He also stated that after December 2005, Toyota fixed the problem, and that the failure rate since then had dropped drastically. The fix consists of the addition of a metal or rubber joint somewhere in the system. (Sorry for not being more precise, I am not a car technician). In the absence of this modification, it was said that oil could spill on the clutch disk when the gearbox was put under strong torque demand, like during climbing, stop and go traffic, or at roundabouts. Toyota was said to have decided not to make a recall, but instead, to repair the cars under guarantee, as they come in for repair.
I wish to make it clear here that this is an example of a non-verified statement which anybody can read on our Forum. I cannot take any warranty or liability for its content. After giving it some thought, I decided it would be worthwhile to bring this matter up here, in view of the larger number of MMT cars in the UK and your experience with this matter.
Messages of the kind reported on here raise the following questions:
1. Do CV MMT cars built before December 2005 have a “vice caché”, or hidden failure, known to the manufacturer? Was it considered by them as not needing a recall, since it is not representing a danger for car safety, and since it is always repaired under guarantee?
2. What if indeed in certain circumstances, a failure of this nature involves exposing the car’s occupants to dangerous situations? If it could be proven that Toyota neglected to take a more precautious attitude, like they did with the passenger airbag, are they not running the risk of a large number of complaints before justice?
3. [b]What will happen to owners who have a failure after the end of the guarantee period, and even encounter more failures?[/b] I noticed already at least one such case in your forum, but I did not find out whether Toyota accepted to pay for part or all of the expenses. These may amount to ¼ of the remaining value of the car! We will see an increasing number of owners facing this problem. In case the MMT had a vice cache, will Toyota give these customers free repair? Until which mileage?
4. What will be the [b]impact on reselling an MMT car[/b] when its reputation continues to go down?
I think these questions merit our attention and need clarification by finding the real facts. I recently wrote a letter to Toyota in my country formulating these questions, but individual action has little chance of success. The best way would be to engage a discussion with Toyota Europe officials. Although very often, this is utopia, there is an interesting precedent in Spain. The Landcruiser Club there had received on its Forum several complaints about Diesel injectors, and the administrators of that site had succeeded in having a meeting with important Toyota Spain managers and officials. Toyota has issued a statement saying that all owners suffering from this problem would receive free repairs, even well after the end of the guarantee. This shows that perseverance and the proper approach may work.
I believe it would be just fair and in Toyota Europe’s interest if they would accept to consider the questions formulated above. The MMT technology may well have had initial problems which were since taken care of. Other cases have occurred in this branch of industry.
I am not writing to you as a Forum official, but as a simple TCV MMT owner. I know however, that the French CVT MMT owners would greet a kind of a Europe wide consumer request. Would you be interested to collaborate on a European level to bring this matter up to Toyota Europe, the only level which I feel is effective?
Mister MMT.

[/quote]
It is nice to hear from a satisfied owner of a MMT Verso! Toyota seem to have taken responsibility for the problems that MMt owners are having and are trying to find a solution ! it would be interesting to hear from new owners as to if the problem still exists on the newer cars ?
It is unclear whether the problem has died down or owners of the problem vehicles have sold there cars and moved on
You commented you may have to adjust your driving style ? my personal opinion is that a car is a car you get in it and drive it ! you should not have to think about it ! if you have too the design may be at fault but I am no expert
regards