171 Mazda 6 DPF issue 'Soot accumulation in DPF is too high'

This one is a big issue with these and frankly would worry me.

There was a thread here now deleted I believe where the OP had the same issue (not dpf I think)

Mazda essentially fobbed him off for months. Put sensors in his car to record his driving and essentially did everything possible to delay and distract. He had solicitor involved etc.

The high oil is due to excessive regen and is unburnt fuel in your oil.

The mapping people are taking about is to essentially pull out the dpf and hook a computer to the car to achieve this completely. I'd be wary. Next year or two could easily see NCT hooking to obd and checking for such bollixing.

See how Mazda treat this.

If they fix everything you'll need to decide is it worth keeping.

Very little chance unfortunately, all the dealers are aware of the nightmare these cars can be and will give you feck all, if anything for your car. There was a beautiful metallic red one on a main dealers forecourt locally they practically had it on the road trying to shift it... I think it went to the auction after.

You see, that was the first thing was said to the op, ya ya you bought a big diesel to show off to the neighbours and you only tip up and down to mass once a week it serves you right etc etc.. However that isn't the case, the car is being used correctly, unfortunately the car has turned out to be a lemon.

The rest of your post is jibberish...

Get it in writing they will replace your car if issue not sorted.

They may fob you off and you may have to sell your car to some unlucky person.

As said masda diesel are known for this multiple complicated issues that block dpf and this car is no exception.

A thing to note every time your car regenerates or is forced a regeneration then the time to an oil change is sooner. The oil level in dip stick will rise. Never let it get above full. Change oil as often as possible and after any garage forced regeneration.

Removing/gutting dpf, fixing whatever other issues are present may be only fix short of scrapping car. The dpf will continue to get blocked if something is causing engine to be "smoky" . Replacing dpf for say 1000 euro is no good if it blocks again. The dpf itself may be ok, but keeps getting blocked due to smoky engine.

If you are into your computers and electronics you can see when regens are happening with an obd dongle and a phone app. Forscan is a good app for Mazdas and can show you dpf temperature etc. If you run forscan not on a phone but on a laptop with a USB dongle you can see more and do more. If regenerations are happening too often fuel consumption will be terrible and engine oil will need changing much more frequently. I went through this whole dpf nightmare in the past.

I think it's more the failed regens that cause the oil level to rise. It could be the simplest thing that causes the regen to fail, finding it is a whole other problem 😡

Honestly it could be anything. I heard of a 2014 Skoda Superb that wouldn't regen and the only fault present was for a faulty seat heater, heater was fixed it was a broken connector and regens started working... The joys of motoring eh? Are there any faults flagged on your car? (Besides regen obviously)

Hi Rockdrummer4,

Its not the dpf, work for Mazda dealer. We have never replaced a dpf on the 2.2 skyactiv engine ever. They dont give issues. You have four faulty injectors. There is also no point in anyone testing them as they wont show up faulty. The fault code you got from Mazda P243c is to do with over fueling from the injectors. This is common. There was a recall on this issue AJ024E. I would also get the garage to check for carbon build up on the throttle body and the map sensor. Honestly get all your work done through the main dealer, i wouldnt trust the garage you are dealing with. Mazda modified the injectors about two years ago.