Mazda 6 Diesel DPF problems
Discussion
Beware of these, my son has one at 36k miles and a pal one at 130k miles. Both have had problems with the DPF (Diesel Particulate Filter)not regenerating.
Our local Mazda franchised dealer in Aberdeen, ARNOLD CLARK, tried to tell my lad that he "wasn't driving it properly". They claimed that the car needed to be run at a speed in excess of 37.2mph for at least 10-15 mins in order to increase the operating temperature of the DPF, him running it around town was the cause of the problem. We pointed out that not only did he commute 60 miles round trip a day on dual carriageway but the car had just returned from an 800 mile round trip taking only three days!!! They still maintained that despite the car being covered by a warrantee with them taken out at the time of purchase (late September 2011) he would still need to pay £92.00 investigation fee and £104.00 for an engine oil & filter change (necessary due to pollutants entering the sump due to the DPF failing to operate). Needless to say we kicked up holy hell and the costs were eventually covered by Arnold Clark thanks to at least one employee (Dave Foster-Sales Manager) seeing our point of view and admitting that it should not have happened in this case.
Moral of the story, if you believe you a right, don't back down.......
Our local Mazda franchised dealer in Aberdeen, ARNOLD CLARK, tried to tell my lad that he "wasn't driving it properly". They claimed that the car needed to be run at a speed in excess of 37.2mph for at least 10-15 mins in order to increase the operating temperature of the DPF, him running it around town was the cause of the problem. We pointed out that not only did he commute 60 miles round trip a day on dual carriageway but the car had just returned from an 800 mile round trip taking only three days!!! They still maintained that despite the car being covered by a warrantee with them taken out at the time of purchase (late September 2011) he would still need to pay £92.00 investigation fee and £104.00 for an engine oil & filter change (necessary due to pollutants entering the sump due to the DPF failing to operate). Needless to say we kicked up holy hell and the costs were eventually covered by Arnold Clark thanks to at least one employee (Dave Foster-Sales Manager) seeing our point of view and admitting that it should not have happened in this case.
Moral of the story, if you believe you a right, don't back down.......
All over the net exactly as you describe. Need only put 'mazda 6 dpf' into google and you'll get a ton of hits. Quite a lot of info on the Honest John website for it too.
It is a known issue, if they try and resist it, you need only print out the pages and pages of websites with owners experiencing such problems.
It is a known issue, if they try and resist it, you need only print out the pages and pages of websites with owners experiencing such problems.
Mazda3 has same problem. I was considering purchasing a 2-year-old 150 or 185hp 2.2 diesel Sport version. The DPF problem, and the resulting possible oil contamination, has put me off, as I intend to keep my next car for 5 years/60K miles. I could be buying a car that has covered 25K miles with am unknown proportion of that when running on contaminated oil - not good for long engine life.
If you need to get a new DPF then click auto sell them very cheap, however!
You need to get to the route of the problem before changing them, as I have found out!
Mazda are very clever, and you cannot change the ecu to ignore the DPF, tried this and failed!
Changing the DPF over is a simple job, but be warned about the sensors. Break one of these and it will cost you over £100 per sensor to replace.
Mine went because the injectors seals were leaking so it was allowing oil to pass by and this clogged up the filter. I found this out the hard way as I had to replace it again after only a further 10,000 miles. Also make sure the MAP sensor is working, and that the sensors are still working before changing it.
They are only £500 to replace, dont be fooled into getting a man in a van to come and clean it either! This wont work, other than cleaning your bank out!
You need to get to the route of the problem before changing them, as I have found out!
Mazda are very clever, and you cannot change the ecu to ignore the DPF, tried this and failed!
Changing the DPF over is a simple job, but be warned about the sensors. Break one of these and it will cost you over £100 per sensor to replace.
Mine went because the injectors seals were leaking so it was allowing oil to pass by and this clogged up the filter. I found this out the hard way as I had to replace it again after only a further 10,000 miles. Also make sure the MAP sensor is working, and that the sensors are still working before changing it.
They are only £500 to replace, dont be fooled into getting a man in a van to come and clean it either! This wont work, other than cleaning your bank out!
thanks to you all for your posts, he had the MAF replaced under warrantee the first time the symptoms occurred a few months ago. I feel for the lad as he's only 23 and sensibly went from Toyota a yaris 'T' Sport and Corrola 'T' sport withVVTi and respectible performance to try to economise but seems to have fallen foul of this inherent problem. So long as it's covered by the franchised dealer after market warantee it will just be an inconvenience, once they stop covering it will be the cost implications that will pull the gloves off and it'll be no more Mr Nice Guy!!
Glosphil said:
Mazda3 has same problem. I was considering purchasing a 2-year-old 150 or 185hp 2.2 diesel Sport version. The DPF problem, and the resulting possible oil contamination, has put me off, as I intend to keep my next car for 5 years/60K miles. I could be buying a car that has covered 25K miles with am unknown proportion of that when running on contaminated oil - not good for long engine life.
Apparently, the later generation 185 BHP 2.2. diesel has a different type of DPF, which needs less miles to regenerate. It does put you off however. I know of a guy who had 2 Mazda 6 diesels that went bang after 110K miles. Not good. this is why I am sticking with my petrol car...I've got a 2010 plate Mazda 6 sport 2.2 185 for my company car.
Dpf is about the only thing not to fail on it!!
So far I've had....
-broken heated drivers seat
- two broken 12v socket failures
- new gearbox!
- all four tyre pressure monitors replaced
44,000 miles on the clock! Paintwork is in a bit of a mess too....
Dpf is about the only thing not to fail on it!!
So far I've had....
-broken heated drivers seat
- two broken 12v socket failures
- new gearbox!
- all four tyre pressure monitors replaced
44,000 miles on the clock! Paintwork is in a bit of a mess too....
mattball said:
All over the net exactly as you describe. Need only put 'mazda 6 dpf' into google and you'll get a ton of hits. Quite a lot of info on the Honest John website for it too.
It is a known issue, if they try and resist it, you need only print out the pages and pages of websites with owners experiencing such problems.
Yes have a possible fix for symptoms these videos!! It is a known issue, if they try and resist it, you need only print out the pages and pages of websites with owners experiencing such problems.
Very informative material was found here on a fix
some variations to parameters but basically the same procedure for other manufacturers that have DPF filters fitted with pressure sensors
DPF FIX PART 1 http://www.youtube.com/watch?v=QMf4m946aKA
DPF FIX PART 2 http://www.youtube.com/watch?v=TXLZEG6It8o
JontyR said:
If you need to get a new DPF then click auto sell them very cheap, however!
You need to get to the route of the problem before changing them, as I have found out!
Mazda are very clever, and you cannot change the ecu to ignore the DPF, tried this and failed!
Changing the DPF over is a simple job, but be warned about the sensors. Break one of these and it will cost you over £100 per sensor to replace.
Mine went because the injectors seals were leaking so it was allowing oil to pass by and this clogged up the filter. I found this out the hard way as I had to replace it again after only a further 10,000 miles. Also make sure the MAP sensor is working, and that the sensors are still working before changing it.
They are only £500 to replace, dont be fooled into getting a man in a van to come and clean it either! This wont work, other than cleaning your bank out!
Yes have a possible fix for symptoms these videos!! You need to get to the route of the problem before changing them, as I have found out!
Mazda are very clever, and you cannot change the ecu to ignore the DPF, tried this and failed!
Changing the DPF over is a simple job, but be warned about the sensors. Break one of these and it will cost you over £100 per sensor to replace.
Mine went because the injectors seals were leaking so it was allowing oil to pass by and this clogged up the filter. I found this out the hard way as I had to replace it again after only a further 10,000 miles. Also make sure the MAP sensor is working, and that the sensors are still working before changing it.
They are only £500 to replace, dont be fooled into getting a man in a van to come and clean it either! This wont work, other than cleaning your bank out!
Very informative material was found here on a fix
some variations to parameters but basically the same procedure for other manufacturers that have DPF filters fitted with pressure sensors
DPF FIX PART 1 http://www.youtube.com/watch?v=QMf4m946aKA
DPF FIX PART 2 http://www.youtube.com/watch?v=TXLZEG6It8o
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