Gen 3 owners please read! Camshaft Issue (Diesel)

[damtom85]

I agree with you Newmazdaowner , doesn't matter if camshaft is worn or not , all affected VIN ( in range) should be recalled.


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[Layabout]

Yeah exactly , on this picture you have them in 4 places starting from left to right side.

Excellent - thanks for your help with this damtom85!

[mar.eng]

[quote="newmazdaowner
Here's the recall http://www.dft.gov.uk/vosa/apps/recalls ... =Blank&tx=

On the face of it the recall regards the PCM but I would say that that is a smoke screen by Mazda.

I checked VOSA Recals and could only find a problem with the car not starting after an I-Stop. My car seemsto be inbetween the vin numbers quoted and the build end date seems to tally. No mention of camshaft problems in that recall 21/10/2014 or any for 2014. Not had the above problem after I-stop, in fact it sometimes starts on its own if it is a long traffic light.
Rather worrying though poor camshaft metalurgy, or is it during the DPF regen that extra fuel is contaminating the oil and causing white metal in the bearings to fail ( a very common problem with diesel engines is fuel contamination of the lube oil and this regen does not help the cause).
If you loose the thin layer of white metal you are onto steel shells which will wear camshafts as the lubrication at the top end plus the fuel contamination will add to the problem.
So did Mazda run the engine underload for a long time with the oil level approaching the X mark. You should not need the X mark on a correctly designed engine.
Dantom85 I suggest a new engine as the other bearings will be in a similar state and you don't know were all these slivers of steel/white meat may have ended up. Good luck.
Question: Why did Mazda on the 3 change to a Urea injection system instead of overfuelling of diesel oil on the exhaust stroke ??

[ColinB]

Question: Why did Mazda on the 3 change to a Urea injection system instead of overfuelling of diesel oil on the exhaust stroke ??

I think they were already using it on the 3 and of course they had all the problems with the 2.0 diesels on the 6 so maybe they thought it would be a better solution than continuing to bodge up the older system? The 2.2 engines were introduced to remedy the DPF problems with the earlier 2.0 versions.

[newmazdaowner]

[quote="newmazdaowner
Here's the recall http://www.dft.gov.uk/vosa/apps/recalls ... =Blank&tx=

On the face of it the recall regards the PCM but I would say that that is a smoke screen by Mazda.

I checked VOSA Recals and could only find a problem with the car not starting after an I-Stop. My car seemsto be inbetween the vin numbers quoted and the build end date seems to tally. No mention of camshaft problems in that recall 21/10/2014 or any for 2014. Not had the above problem after I-stop, in fact it sometimes starts on its own if it is a long traffic light.

That recall is Mazda's partial solution to the overall nagging possibility that they must have to recall all of the cars with VINs in that range that they know have those badly made camshafts. Some engines must be effected with i-STOP problems - i.e. tiny bits of shrapnel are flying around the engine causing all sorts of problems. They have still haven't realised that there is a catastrophic accident out there waiting to happen and they should hold up their hands now and say "Your safety is paramount to us, so we will recall all those car with the defective camshaft" whether they are showing signs of early wear or not - end of, good night and that's the only answer to this mess. BITE THE BULLET NOW MAZDA or have deaths on your conscience

[fright]

"That recall is Mazda's partial solution to the overall nagging possibility that they must have to recall all of the cars with VINs in that range that they know have those badly made camshafts. Some engines must be effected with i-STOP problems - i.e. tiny bits of shrapnel are flying around the engine causing all sorts of problems. They have still haven't realised that there is a catastrophic accident out there waiting to happen and they should hold up their hands now and say "Your safety is paramount to us, so we will recall all those car with the defective camshaft" whether they are showing signs of early wear or not - end of, good night and that's the only answer to this mess. [b]BITE THE BULLET NOW MAZDA or have deaths on your conscience"


The post is complete speculation and quite frankly is false and scare mongering I mean quote "BITE THE BULLET NOW MAZDA or have deaths on your conscience" over the top or what, the recall States the car won't start after I-stop has kicked in well the car will now be stationery and unlikely to kill you, and as for the premature wear on the cam shaft it that wear, its not snapping in half and making the car explode is it. I do however think mazda should sort out any potential effected cars but again saying you could die is way over the top and will put off potential new owners making the decision to buy a fantastic car that is the new mazda 6 so to anyone thinking of getting the 6 my advice is just buy one they are great, all new cars have problems and this issue is not a reason to dismiss the 6 as your next car as the issues have already been addressed

[newmazdaowner]

"That recall is Mazda's partial solution to the overall nagging possibility that they must have to recall all of the cars with VINs in that range that they know have those badly made camshafts. Some engines must be effected with i-STOP problems - i.e. tiny bits of shrapnel are flying around the engine causing all sorts of problems. They have still haven't realised that there is a catastrophic accident out there waiting to happen and they should hold up their hands now and say "Your safety is paramount to us, so we will recall all those car with the defective camshaft" whether they are showing signs of early wear or not - end of, good night and that's the only answer to this mess. [b]BITE THE BULLET NOW MAZDA or have deaths on your conscience"


The post is complete speculation and quite frankly is false and scare mongering I mean quote "BITE THE BULLET NOW MAZDA or have deaths on your conscience" over the top or what, the recall States the car won't start after I-stop has kicked in well the car will now be stationery and unlikely to kill you, and as for the premature wear on the cam shaft it that wear, its not snapping in half and making the car explode is it. I do however think mazda should sort out any potential effected cars but again saying you could die is way over the top and will put off potential new owners making the decision to buy a fantastic car that is the new mazda 6 so to anyone thinking of getting the 6 my advice is just buy one they are great, all new cars have problems and this issue is not a reason to dismiss the 6 as your next car as the issues have already been addressed

There you go again fright - are you a Mazda salesman by chance?
Regarding "way over the top" remarks that I made that an accident could result from the serious premature wear of the affected camshafts, imagine if you can this. An affected car is travelling at some speed in the outside lane of a motorway when suddenly the engine siezes because of either shrapnel from the camshaft enters the fuel cylinders or the camshaft strips itself completely. In this case, with a siezed engine, the drive train is still in motion, making the wheels jam up and possibly cause the piston rods to implode or explode. After that what happens is down to luck, as there is nothing that the driver can do about it. Do you imagine that the engine would just cut out - taking the car out of gear at the same time - also allowing the driver to get from the outside lane to the hard shoulder before anybody hit him from behind? But none of the above could happen could it? Wake up friend !!

[fright]

"That recall is Mazda's partial solution to the overall nagging possibility that they must have to recall all of the cars with VINs in that range that they know have those badly made camshafts. Some engines must be effected with i-STOP problems - i.e. tiny bits of shrapnel are flying around the engine causing all sorts of problems. They have still haven't realised that there is a catastrophic accident out there waiting to happen and they should hold up their hands now and say "Your safety is paramount to us, so we will recall all those car with the defective camshaft" whether they are showing signs of early wear or not - end of, good night and that's the only answer to this mess. [b]BITE THE BULLET NOW MAZDA or have deaths on your conscience"


The post is complete speculation and quite frankly is false and scare mongering I mean quote "BITE THE BULLET NOW MAZDA or have deaths on your conscience" over the top or what, the recall States the car won't start after I-stop has kicked in well the car will now be stationery and unlikely to kill you, and as for the premature wear on the cam shaft it that wear, its not snapping in half and making the car explode is it. I do however think mazda should sort out any potential effected cars but again saying you could die is way over the top and will put off potential new owners making the decision to buy a fantastic car that is the new mazda 6 so to anyone thinking of getting the 6 my advice is just buy one they are great, all new cars have problems and this issue is not a reason to dismiss the 6 as your next car as the issues have already been addressed

There you go again fright - are you a Mazda salesman by chance?
Regarding "way over the top" remarks that I made that an accident could result from the serious premature wear of the affected camshafts, imagine if you can this. An affected car is travelling at some speed in the outside lane of a motorway when suddenly the engine siezes because of either shrapnel from the camshaft enters the fuel cylinders or the camshaft strips itself completely. In this case, with a siezed engine, the drive train is still in motion, making the wheels jam up and possibly cause the piston rods to implode or explode. After that what happens is down to luck, as there is nothing that the driver can do about it. Do you imagine that the engine would just cut out - taking the car out of gear at the same time - also allowing the driver to get from the outside lane to the hard shoulder before anybody hit him from behind? But none of the above could happen could it? Wake up friend !!

Why are you driving such a dangerous car??
Why are you spreading complete rubbish has anyone been killed by the camshaft failing?? Utter speculation and misguided opinion and not facts saying there is a problem is one thing saying your going to get killed by driving a 6 is **** and for the record I don't work for mazda

[newmazdaowner]

Why are you driving such a dangerous car??
Why are you spreading complete rubbish has anyone been killed by the camshaft failing?? Utter speculation and misguided opinion and not facts saying there is a problem is one thing saying your going to get killed by driving a 6 is **** and for the record I don't work for mazda

The point is that I personally am not driving a dangerous car, but those that have VIN's that have the defective camshaft are possibly doing so. I am not the only person on here that agrees with me that Mazda should recall all the known vehicles that they know have the rogue camshaft and until they do then I and others will hound them. Why do you think that Ross started this thread in the first place? He doesn't even drive a 3rd gen M6, but he knew how serious this matter is.

I am in no way trying to put people off from buying this superb car and everything that I write on here praises where praise is due (check my posts), but not to the detriment of allowing Mazda to keep their heads firmly buried in the sand over such matters as this. It's not my intention of scaring anybody, but all I can say is that if my car was built during this span of time and I knew it had a dodgy camshaft, I would be very wary of driving it on fast roads - is that not what you would be like too? Is your car inside or outside of the VIN range?

The truth hurts sometimes and this is one of those times - Mazda should recall all of the effected vehicles, whether they show signs of early camshaft wear or not. Eventually in the long run, perhaps after the warranty period has ended, those now unaffected cars will inveriably have camshaft problems, however, Mazda will then be justified in charging them thousands of pounds to fit a new engine and turbos. If you say that you are against the "recall all in VIN range" scenario then please keep quiet about it, as you are digging yourself and Mazda a great big deep hole. Think of all those unsuspecting second owners who are sold one of these cars and then have to fork out all that money to put it right.

[fright]

Try reading my posts I've never said there isn't a problem I've said your comments are over the top and scare mongering and give the wrong impression and could easily put people reading these posts off buying a really good car and for the record I'm not digging any hole mazda or otherwise
This is my last post on your comments as the thread should get back on topic