I have seen comments on the forum regarding a possible gearbox issue on some early 2ltr ND cars, mainly in the USA.
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What is the issue?
my race car has had 3 yes 3 gearboxes in 800 miles. The teeth canât take the punishment!!
My car has 12K miles on it and is an early one (delivered Oct 2015). It has mainly been used as a daily but did a few hundred hard miles around some mountain passes last year. No problems yet, but it has been a bit âwhinyâ since I had it - this was reported to the dealer at its first service, so if it breaks I expect it to be fixed for free. I donât worry about it in the slightest, but the fact that itâs still under warranty and has a TSB against the fault helps.
Out of interest. Â Does any one know if there have been any failures in the 1.5l ROADCAR, and if so how many? Â Thanks.
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Itâs a bit worrying that Fiat chose to use the box from the NC in their 124, allegedly because the ND box wouldnât handle the extra torque from the Multiair engine Â
[quote=Countryboy]
Out of interest. Â Does any one know if there have been any failures in the 1.5l ROADCAR, and if so how many? Â Thanks.
[/quote]Same gearbox in all ND cars I believe
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Iâm curious !
Is it a brand new design of gearbox that has been fitted to the ND ?
Iâve only been a member of the OC since November, but I have not heard of gearbox issues with any other version of the MX-5. Â In fact, in past motoring shows on TV, and magazines that I have read, the general consensus always seem to be that mechanically the MX-5 is basically âbulletproofâ.
Also, as Parker has just posted, for the new Fiat 124, the âpowers that beâ have chosen the older transmission from the NC !
Surely though, any issues, such as serious gearbox faults like this, should really have been ironed out during prototype testing, before putting the car into general production and releasing the product to the world-wide car-buying public.Â
Just an idea !
It is obvious you read too much poor information about the cars driven by journalists that give the car back after they use it.
Plenty cars both Mk1. Mk2 and Mk3 with mechanical issues and plenty posts on the forum to confirm that.
See:
https://forum.miata.net/vb/showthread.php?t=610318
http://forum.miata.net/vb/attachment.php?attachmentid=257156&d=1480114440
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On the face of it, about 20,000 cars in Europe affected.
For most members of the general public, and I guess you can say that was me until I joined the MX-5 OC last November, TV programmes and motoring magazines are the only way they can get information on cars.
There may very well be oodles of posts and threads dealing with the MX-5âs various mechanical gremlins on this forum from years past, but not everyone is going to have the time or inclination to spend hours, days, or perhaps even weeks (!) trawling through thousands of previous postings to get information. Most people will only be able to sift though postings starting from the time they have actually been members.
Even though I have only been a member for four months, I have noticed that a lot of subjects crop up time and time again, with letters from new members asking for information and advice that in all likelihood has been dealt with many times in the past.
Old hands at this forum are going to have to live with the perhaps endless repeats for information and advice from new members that in all probability will have been covered before.
Sorry if it was a silly question, but life is too short to spend it stuck in front of a computer screen every waking hour in order to maybe dig up a piece of info that was posted years ago, and subsequently lost somewhere in the archives.
No known reports of the 1.5 suffering the same in the short term.
If you want to read more about it the threads on Miata.net have many thousands of posts discussing and theorising on the issue.
From what I can find then it would seem that the problems are with the 2.0l variants, is that right? Â Which if right would suggest that the gearbox, like everything else about the ND was originally designed around the 1.5l engine and that the extra torque of the 2.0l is pretty close to the maximum tolerances of that gearbox?
One of my members has had problems with her gearbox she has had it replaced but the garage who done the work, a Mazda dealer, replaced like for like. She has now gone to a different Mazda dealer who are putting in an updated gear box as per Mazda GB instruction.
Mal, is that on a 2.0l?
Yikes!
Having followed other âissuesâ in other manufacturersâ cars in the past, my understanding is that if a known issue afflicts an individual car post-warranty, any compensation/help with cost of repair depends on a âgoodwill gestureâ from the manufacturer. Sometimes this can be easy to arrange and is generous, and sometimes very difficult (if not impossible) and stingy, but I think itâs fair to say that itâs always a headache.
With apologies to early 2L owners, Iâm afraid that, personally, I would therefore avoid pre-revision 2L cars as a used car purchase now.
What is classed as an early 2ltr car. Can it be defined by the VIN number
To be honest I am not sure about mazda build quality these days,my firm had a CX5 on lease and it was not good.A new turbo,driveshafts,and a very notchy gearbox.Probaly not related to the mx,but you cant be sure.
Since this seems to mainly be with 2L cars (the engine the vehicle wasnât designed around) I suspect the conversation at the technical meeting went something like this:
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Lead Engineer: âWeâve just finished the gearbox. It works a treat with the new 1.5â
Sales Executive: âThatâs great Barry, but last gen we sold lots of 2L models. Will it work with the more powerful engine?â
Lead Engineer: âEr, dynamically yes, but weâre pushing the stress limits on the mid gears a little biâŚâ
Sales Executive âThatâs great Barry, Iâll make sure your team gets a pat on the back. Now I have lunch with the CFO so ciao!â