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What is the most realiable automatic gearbox ? - bladest

Hi all, What is the most realiable automatic gearbox ? For car after year 2010 , also cvt or automatic gearbox is more reliable please tell me some brands and models or cars ... thanks.

What is the most realiable automatic gearbox ? - SLO76
A conventional torque converter setup is typically the most robust type of self shifter. Mazda autos are pretty robust for example but Toyota have mastered the CVT box well and their examples rarely go wrong. Other brands such as Nissan for example make their CVT’s from cheese it would seem from failure rates. When buying used avoid at all costs anything with VW’s DSG or Fords Powershift automated manual gearboxes. Both are fragile and hugely costly to rectify.
What is the most realiable automatic gearbox ? - bladest

i have heard that some mazda auto gearbox are 6 speed and not very reliable.

Are normal toyota autogearbox non cvt good?

How about honda autogearbox at least gearbox which are installed into Accord for example or Civic are they bad not sure if they are cvt i think they are convential and only hybrid models got CVT.

Also how about ZF automatic gearbox which are installed into Jaguar xf/xe , and why ford powershift autos are bad?

Edited by bladest on 03/09/2021 at 22:07

What is the most realiable automatic gearbox ? - SLO76
Never had any trouble with any Mazda auto I’ve sold. The Accord is a torque converter but it depends on the age of Civic, it could be a torque converter or the dreaded I-shift single clutch automated manual. There are class actions across the globe against Ford regarding the weak Powershift box, they’ve finally gave in and are now using a conventional torque converter system. It’s to be avoided.
What is the most realiable automatic gearbox ? - bladest

Civic and accord after year 2010 not sure whatgearbox they have its not cvt i think :)

So is the standart autogearbox from toyota non cvt any good :)?

how about Jaguar ZF? Or Volvo Aisin autoboxes?

What is the most realiable automatic gearbox ? - bathtub tom

I understand Toyota CVT are epicyclic, so not your conventional (DAF type) belt drive CVT.

Do we need a new definition to discriminate between Toyota (epicyclic) CVT and the belt drive types others use?

What is the most realiable automatic gearbox ? - Terry W

I have a Peugeot 308 with an EAT8 gearbox.

It is a conventional torque convertor. Very smooth and gear changes barely perceptibe.

What is the most realiable automatic gearbox ? - Lee Power

I have a Peugeot 308 with an EAT8 gearbox.

It is a conventional torque convertor. Very smooth and gear changes barely perceptibe.

Thats an Aisin box ( so is the EAT 6 ) so technically it's made by Toyota.

What is the most realiable automatic gearbox ? - Lee Power

I understand Toyota CVT are epicyclic, so not your conventional (DAF type) belt drive CVT.

Do we need a new definition to discriminate between Toyota (epicyclic) CVT and the belt drive types others use?

Toyota epicyclip CVT are used in the hybrid power trains ( E - CVT )

The newer Toyota belt driven CVT used in the non hybrid power trains now also have a mechanical launch gear for moving away from a standstill ( reduces stress on the transmission ) - once moving the belt part of the transmission then takes over.

What is the most realiable automatic gearbox ? - Miniman777

Any TC box is generally reliable.

I've driven many different BMWs with 8-speed ZF boxes and a few P3008s with EAT8 boxes, both are a delight - smooth and silky when changing. The current 7 speed box on the F55/56 Mini isn't bad either, which is a DCT!

DSG problems are well documented and for that reason I'd never buy a VW group car with DSG, nor a CVT transmission car. Personal choice.

What is the most realiable automatic gearbox ? - bladest

What problems can cvt in toyota hybrids make ?

And what problems normal non cvt automatic gearbox in toyota/lexus can happen?

What is the most realiable automatic gearbox ? - pd

The Toyota gearbox used in hybrids (Prius) is probably the most reliable.

What can go wrong with others? They make a horrible noise, a load of lights come on the dash, the car doesn't drive properly and is scrapped for parts. Basically.

What is the most realiable automatic gearbox ? - wantstolearn

Apologies, INot my thread but Interested in any comments on Hyundai ix20 or Venga autos. Thanks

What is the most realiable automatic gearbox ? - badbusdriver

Apologies, INot my thread but Interested in any comments on Hyundai ix20 or Venga autos. Thanks

Very reliable, but it's a thirsty combination, especially the pre facelift 4 speed auto. Post facelift (around 2015) got a 6 speed auto, which gives a little better economy and drivability.

What is the most realiable automatic gearbox ? - wantstolearn

Thanks for prompt and clear response. Have fairly low mileage so more concerned with reliability and driveability

What is the most realiable automatic gearbox ? - SLO76
Robust little cars, perfect for those who need a higher riding car but don’t do a high mileage. Underbody rust usually kills Kia’s and Hyundai’s long before any major mechanical failure occurs.
What is the most realiable automatic gearbox ? - wantstolearn

Much appreciated. Any suggestions for combating rust please ? How big a problem is it with the cars ?

What is the most realiable automatic gearbox ? - madf

Dinitrol from new no older than 2-3 years old.

Don't buy cars near seaside- salt.

Check underneath before buying.

Rear suspension and mounting points usually worst on any car.

(I follow my own advice driving a 2003 Yaris and 2012 Jazz - both largely rust free)

What is the most realiable automatic gearbox ? - wantstolearn

Invaluable for me. Much appreciated.

What is the most realiable automatic gearbox ? - bladest

And what problems normal non cvt automatic gearbox in toyota/lexus can happen?

What is the most realiable automatic gearbox ? - expat

With any auto transmission change the fluid as per the manufacturers recommendation. If it is a TC and "sealed for life" change it every 5 years or so. Also the diff oil if RWD. Oil changes cost money but prolong the life of very expensive components.

What is the most realiable automatic gearbox ? - Heidfirst

And what problems normal non cvt automatic gearbox in toyota/lexus can happen?

The same as in others just less often :P

Toyota has in recent years used 4 different types of "auto" gearboxes:

epicyclic - used in hybrids, very reliable

CVT - e.g. Avensis T27 petrol Multidrive S, very reliable

Torque converter - typically Aisins, very reliable

Automated Manual - X-shift in the Aygo. tbh I would avoid this one

What is the most realiable automatic gearbox ? - Big John

Dinitrol from new no older than 2-3 years old.

Yup Dinitrol is fab stuff especially inside chassis/sills/subframes etc however re exposed rusting metal / seams/ subframes/ suspension etc I always use Owatrol oil (spray or paint on) - goes on like new engine oil but kind of sets like a clearish varnish. Has even stopped rust on Mrs BJ's Fiat 2006 Panda sump (these really rust!) - applied 5 years ago, still perfect. One strange tip for door/boot/bonnet seams, 3 in 1 oil spray cans - so thin it really soaks into seams, really holds/stops rust, and it's cheap.

Re most reliable gearbox - Toyota/Lexus hybrid e-CVT. Simples oily bits incorporating epicyclic gears on a transaxle with two motors/generators , oh and an engine at one end via a sacrificial clutch. All electronically controlled pulling together motion via motor/engine or generation via engine/braking. Many used as taxis with starship mileages. Brake components last much longer as the regenerative braking is so effective.

If not hybrid - torque converter auto gearbox.

Edited by Big John on 05/09/2021 at 09:36

What is the most realiable automatic gearbox ? - Engineer Andy

Civic and accord after year 2010 not sure whatgearbox they have its not cvt i think :)

So is the standart autogearbox from toyota non cvt any good :)?

how about Jaguar ZF? Or Volvo Aisin autoboxes?

Just be aware that some Volvos have torqu converter (TC) auto boxes and some (certain sub models of cars made during the period they were owned by Ford) are Ford Powershift dual clutch units. The problem is that it's not easy knowing which have what box is fitted to what sub-model.

I think there's another thread covering this subject to some extent within the last 6 months you can search for that may give some answers in that regard.

Oddly enough, even during their tie-up period with Ford, Mazda never installed any Powershift dual clutch units on their cars, sticking to the tried-and-tested TC units. Now they've 'divorced' from Ford, they now just use their own rather than from Ford or Aisin (as Toyota/Lexus do) or Jatco (Nissan) for TC boxes.

Aisin ones are normally the most relaible, but I can't say I've heard of any reliability issues with ones in Mazdas, Ford-derived or their own, at least over the last 15 years. Jatcos, as I see it, tend not to have such a good reputation for reliability.

What is the most realiable automatic gearbox ? - bladest

Does all Infiniti q70 and infiniti m series / petrol/diesel and hybrid use jatco transmission they are 7 speed automatic gearbox with 2 clutches or?

What is the most realiable automatic gearbox ? - Archie35

I'm curious about this lack of reliability with VW DSGs... I was in a medium sized independant garage in Dorset last week, which does a lot of VAG cars (plus many other brands), and I asked the manager about this while paying my bill (for something completely different!). He disagreed, and said that the ones which fail are the ones which have never been serviced. In his opinion VAG autos are no worse than the majority - as long as one sticks to the servicing schedule. Have there been any studies which show their lack of reliability, or might this be a commonly held, but perhaps incorrect, opinion? Potentially from earlier generation autos, which no longer apply?

What is the most realiable automatic gearbox ? - SLO76
I’ll wager he hasn’t had to deal with many of them beyond the occasional low mileage Polo. Ask any VW specialist however and they’ll be advising caution, especially with the dry clutch variant in lower power VW’s. Yes they do require fluid changes on schedule and missing this would cut lifespan but there’s loads of cases of properly maintained cars with ruined gearboxes. Ask any dealer or group buyer at auction and you’ll hear how wary they are of them. I’ve stood and watched perfectly nice Golfs and polos with DSG boxes fail to sell through the ring as dealers don’t want the hassle. If they do sell they do so for well below book money. My local VW dealer typically refuses to sell any beyond 5yrs of age.

Later versions will no doubt be more robust but I simply don’t trust dual clutch gearboxes. DSG and Powershift have tarnished the reputation for me and the trade are rightly wary. I wouldn’t buy one nor would I advise anyone else to do so. The three golden words of of used car buying are ‘keep it simple’ and a highly complex twin clutch automated manual gearbox is as far from this as it’s possible to get.
What is the most realiable automatic gearbox ? - Engineer Andy
I’ll wager he hasn’t had to deal with many of them beyond the occasional low mileage Polo. Ask any VW specialist however and they’ll be advising caution, especially with the dry clutch variant in lower power VW’s. Yes they do require fluid changes on schedule and missing this would cut lifespan but there’s loads of cases of properly maintained cars with ruined gearboxes. Ask any dealer or group buyer at auction and you’ll hear how wary they are of them. I’ve stood and watched perfectly nice Golfs and polos with DSG boxes fail to sell through the ring as dealers don’t want the hassle. If they do sell they do so for well below book money. My local VW dealer typically refuses to sell any beyond 5yrs of age. Later versions will no doubt be more robust but I simply don’t trust dual clutch gearboxes. DSG and Powershift have tarnished the reputation for me and the trade are rightly wary. I wouldn’t buy one nor would I advise anyone else to do so. The three golden words of of used car buying are ‘keep it simple’ and a highly complex twin clutch automated manual gearbox is as far from this as it’s possible to get.

The problem I suspect is that a lot of (uninformed) car owners wrongly buy cars with dual clutch gearboxes thinking they work similarly to 'traditional' TC auto boxes except that they achieve quicker gearchanges and get better mpg.

DSG type gearboxes are still manuals and still have clutches than can be worn out relatively quickly, rather like a standard manua gearboxl. That people edge forward in heavy traffic or reverse up steep slopes very regularly means their clutch pack will likely wear far more quickly than the equivalent in a TC auto box.

I also suspect that the dealer mentioned above says cars that don't see regular services have failed DSG boxes because the cars are generally mistreated and/or driven unsympathetically - which can include those with low mileages for their age, because most of it was in stop-start traffic.

Dual clutch gearboxes were originally designed for motorsport - for quick, efficient gear changes at speed, not for lolloping around between 0 and 10 mph. Probably why F1 cars can burn out their clutch packs if they hold too long on the grid (at least in the earlier years).