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10-07-2019, 12:56   #1
Bride to be
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Engine failure in 142 Mazda 6

Hi,

We have experienced a number of problems with our car since it's purchase in 2017: constant tyre pressure fault showing on console despite tyres being at the correct pressure, failed hand brake (which resulted in the car rolling backwards a number of times, once hitting a pole and once narrowly missing my daughter), turbo failure (we understand the gate valve which snapped has since been made more robust in newer models?) and now our own mechanic has told us that the main bearing on the crank shaft has gone but that he couldn't be 100% certain without taking the car apart. We have had the car towed to a Mazda garage in Dublin so that it can be fixed there as we were told that we may have received some compensation towards the turbo if we had got it fixed in a Mazda garage. At the time we got the turbos fixed we didn't know what was wrong with the car and by the time we did our own garage had put a good few hours labour into it so we left it with them. Long story short Mazda garage in Dublin has called to say the car needs a new engine. Without spending more money investigating they cant tell us the cause of the issue. I'm just wondering if anyone else has experienced these problems with a 142 Mazda 6?


The car is driven approx. 5 miles most days and taken on longer journeys each week to ensure the DPF filter is kept clear. It has approx. 125,000 km on it. Also does anyone know roughly what a new engine will cost??? Thanks in advance!
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10-07-2019, 13:34   #2
Tropheus
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That's a tough one. Did you buy the car from a Mazda garage? Has it been serviced by them? There are lots of factors here. You may be better discussing with a solicitor.

In terms of a new engine, I would guess €3-4k and that could be plus labour.
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10-07-2019, 13:41   #3
zilog_jones
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All of those issues plus the whole oil dilution problem (related to failed DPF regen) seem like common faults with the Skyactiv-D engines, unfortunately.
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10-07-2019, 14:03   #4
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Thanks for the replies. No we bought the car from an independent garage and it has been serviced by our own local mechanic.
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10-07-2019, 14:05   #5
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All of those issues plus the whole oil dilution problem (related to failed DPF regen) seem like common faults with the Skyactiv-D engines, unfortunately.
Thanks for reply. Do you know if Mazda are giving any goodwill towards these issues given that they are common?
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10-07-2019, 14:26   #6
bennya
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It's crucial with these engines to keep an eye on the oil level, and get the oil changed immediately if the level rises above maximum, to or beyond the 'X' mark on the dipstick. Not that this helps your current situation, but should be better informed beyond a note in the handbook.
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10-07-2019, 14:27   #7
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It's crucial with these engines to keep an eye on the oil level, and get the oil changed immediately if the level rises above maximum, to or beyond the 'X' mark on the dipstick. Not that this helps your current situation, but should be better informed beyond a note in the handbook.
Thanks for your reply. The oil levels haven't been an issue in the car but good to keep in mind.
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10-07-2019, 15:22   #8
bazz26
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Those Mazda diesel engines do not have a good reputation for reliability. The lack of daily driving could very well have contributed to some of those problems but it sounds like its a right lemon anyway.

I'd be looking for a more detailed explanation from the dealer as to what is wrong with the engine that it needs a new one. Unless Mazda are contributing substantially towards the cost of a new engine then I'd tend to look at getting a reconditioned one or a rebuild of the existing one as a cheaper alternative.
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10-07-2019, 23:19   #9
theguzman
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Mazda diesels are absolute junk but this is not so widely known, get ready to cut your losses and buy a petrol or EV car after since your mileage is tiny.
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12-07-2019, 09:08   #10
ohnonotgmail
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Mazda diesels are absolute junk but this is not so widely known, get ready to cut your losses and buy a petrol or EV car after since your mileage is tiny.
is 125,000KM in 5 years tiny mileage?
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12-07-2019, 09:10   #11
Twenty Grand
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is 125,000KM in 5 years tiny mileage?
They bought 2 years ago.

5 miles a day. Tiny.
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