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Has anyone else had problems with their Alfa Mito gearbox. The car is a 59 plate and done 21,000 miles, I have had to take the car to a transmission specialist as they are having to rebuild the gearbox due to in their opinion having a very poor gearbox when it was originally fitted apparently the bearings are not strong enough for the actual car ! the main bearing on the output shaft has worn. As this is obviously out of warranty there is nothing I can do but pay up ! surely a car with such low mileage should never have something like this go wrong despite its age. The other things I have had done in the last year is a new alternator, front suspension done and a new gear selector. Any advice or help would be gratefully received.
 

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Hi Linda J ,, what was the original problem with the gearbox ? why did you have to take it to a specialist, them saying things like it was a poor gearbox originally and that the bearings are not strong enough,, statements like these appear to be rather vague and non descriptive. You need more specific info from them, I am not a Alfa Specialist myself but I am a Fiat trained tech so I wont be far off,, hope this is of some help.
 

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There is plenty on here about the weakness of the 'M32' 6 speed gearbox. You could try a complaint to alfa uk especially as low mileage, not a lot of hope though. Or do you have a 5 speed?
 

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Yes I read earlier about the m32 and yes it has 6 speeds I'm waiting for the full report from the specialist then taking it further with Alfa. Because its out of warranty and an "old " car Alfa wont do anything about it
 

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Hi Linda J ,, what was the original problem with the gearbox ? why did you have to take it to a specialist, them saying things like it was a poor gearbox originally and that the bearings are not strong enough,, statements like these appear to be rather vague and non descriptive. You need more specific info from them, I am not a Alfa Specialist myself but I am a Fiat trained tech so I wont be far off,, hope this is of some help.
I had to take it to a gearbox specialist as Alfa wont do anything. My main gripe is that it has only done 21,000 miles. Waiting for a full report from them, going to speak with Alfa again if no luck will be taking my complaint to Motor Codes.
 

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On a 6 year old car you will struggle to get anywhere with Alfa.

The M32 box is known to be weak (I think Ned described it as being made of "chocolate and cheese" when he rebuilt mine). Best thing you can do it catch it early, before any real damage is done.

Where are you based? There's a few alfa specialists around who are sort of the go-to people with this problem, and I'd trust them over the places that just recon gearboxes.
 

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Discussion Starter #7
On a 6 year old car you will struggle to get anywhere with Alfa.

The M32 box is known to be weak (I think Ned described it as being made of "chocolate and cheese" when he rebuilt mine). Best thing you can do it catch it early, before any real damage is done.

Where are you based? There's a few alfa specialists around who are sort of the go-to people with this problem, and I'd trust them over the places that just recon gearboxes.
thanks for the info. I am based in Kent and already have the gearbox being repaired, the garage was recommended to me by quite a few people. As you say as the car is 6 years old you doubt Alfa would do anything, which is true I have gone via all routes and they still not budging. My main issue is that it has only done 21,000 miles. If the car would have done the average 10,000 - 12,000 miles a year it would have been picked up within the warranty period. My old Peugeot done well over 120,000 miles with no problems and still going strong ! I will check with the garage and see if it has the M23 gearbox though.
 

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You should be paying around £600 to get your box rebuilt - that's what mine cost.
Thats a good price, mine has fait whine noise so got it rebuilt 80k cost over 1k with clutch.
Read box gets very hot so good oil and poss oil cooler may help prevent future issues.

Sent from my SM-G920F using Tapatalk
 

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We didn't do the clutch on mine. The bearings can be changed without taking the box out of the car so we didn't expose the clutch!
 

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Had to have the gearbox bearings changed on my Mito as well... It's a very common problem with the M20/M32 gearbox.
 

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thanks for the info. I am based in Kent and already have the gearbox being repaired, the garage was recommended to me by quite a few people. As you say as the car is 6 years old you doubt Alfa would do anything, which is true I have gone via all routes and they still not budging. My main issue is that it has only done 21,000 miles. If the car would have done the average 10,000 - 12,000 miles a year it would have been picked up within the warranty period. My old Peugeot done well over 120,000 miles with no problems and still going strong ! I will check with the garage and see if it has the M23 gearbox though.
The 155TB does have the M32 gearbox - I think it was the only box Alfa used with that engine (the more powerful 170BHP model had the C635, which I believe has it's own set of issues). It's the one fault on the car you can't blame Alfa for though - as it's not an Alfa box and also plagues a few VXRs and other models that use the same box. It's annoying though as the 155TB is well within the limits of the gearbox (I think it's rated for 320Nm, the 155TB produces 220-230Nm stock I think (I seem to remember reading the first 2 digits are swapped! - might have to double check wikipedia for that one :p)).

£600 for a rebuild is pretty cheap, but I guess it's less labour doing it on the vehicle. Personally I would (and did) opt to have a full off-the-car rebuild, and the cost wasn't that much more considering the amount of extra work (it's probably cheaper on a per-hour basis ha!). It also gives you the opportunity to do the clutch (if needed, probably not at that mileage though) and think about a diff upgrade at the same time (I didn't since I had other finances that needed dealing with around the same time, but it's worth considering). Also, there may be crap from the bearing that could (rarely, but potentially) cause more damage - hence why the longer you leave them, the more they cost to repair, so it's worth looking over everything else. One more thing - I seem to recall Ned saying that he tends to overfill the gearbox oil on them when rebuilding them - I think he did with mine, and the box certainly felt better after being rebuilt, so it might be worth looking into.


Just make sure it's a trustworthy place you go to, and not one of those "we take yours and give you a recon one" places. You don't want to end up with a box from an unknown car, that's done god knows how many miles possibly under terrible conditions/with an appalling driver! At least with a used car (not just a used gearbox) you can normally get an idea of how well it was driven/looked after.
 

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Mine went after 9000 miles, it was still under warranty as it was 1 year old. Alfa wanted to recondition the gearbox which i said no way Pedro. I threatened them with Trading Standards, low and behold 2 weeks later brand new gearbox and diff fitted. Seemingly it cost £1800, but i wasn't caring. Good luck anyway bud
 

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Sadly you might have been better off with the recon box (depending on who reconditioned it) as the new one you got is just as likely to fail...
 

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That was 4 years ago, No problem so far. As far as I'm aware they put a different model gearbox in, but i wouldn't know model numbers
 

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