Mazda 6 Forums banner
1 - 13 of 13 Posts

·
Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
This afternoon i have had a warning light come on. Orange triangle.
But when i check in the info on the console there were 2 faults reported.
One was dpf ... and i should drive 10 to15 mins to clear the dpf. This i did and that warning has now cleared. But the 2nd one remains and all it says is DPF MALFUNCTION... take to dealer to check.
Car is driving fine. Not in limp mode. Checked oil tonight, levels ok, but it is very black like ink and water thin. Tbh not sure if this is normal or not, oil wise? Anyone had this with their dpf? Car was serviced in Jan, but doing less mileage since pandemic...

Mazda dealer wants 100 pounds just to plug into a reader! Help o_O
 

·
Registered
Joined
·
3,283 Posts
Is the level of oil near the X mark? You should change oil then.

Get Forscan and buy an OBD plug. That is way cheaper to check the code and I don't think you'll be spending a hundred pounds for that.

@TalonTsi90 knows more about it and what OBD plug to buy.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #3 ·
Is the level of oil near the X mark? You should change oil then.

Get Forscan and buy an OBD plug. That is way cheaper to check the code and I don't think you'll be spending a hundred pounds for that.

@TalonTsi90 knows more about it and what OBD plug to buy.

Thanks for replying. Checked oil and its about 2cm from the X so is that ok? Whats Forscan? Cheers!
 

·
Registered
Joined
·
1 Posts
I have a problem with the instrument panel on the Mazda 6 My speedometer, temperature gauge stopped working and my ABS lights, handbrake and service are constantly burning. Is there a solution
 

·
Registered
Joined
·
3,283 Posts
The oil should be below the X.
[]
I just checked my oil and a bit surprised that I am almost at the X mark!




I need to go out tomorrow, for about 100 km back and forth. I'll change the oil once I arrive home. It has only 4000 km since its last change but it is over 6 months. I haven't used the car...
 

·
Registered
Joined
·
3,283 Posts
Take care on how do you check the level.
Engine has to be at normal operating temperature, then turn it off and wait at least 5 minutes.
I forgot about that! I checked the oil with the cold engine. We don't have winter so what is cold here is actually hot.

I'll check the oil level upon arrival tomorrow.
 

·
Registered
Joined
·
113 Posts
Start logging your mpg each fill up, but don't wait untill your empty to fill up.
When you fit your adapter, read the Forscan instructions carefully and set up accordingly. Make sure your mobile device is connected to the wifi from the obd, not your home wifi.
It could take up to 30 minutes for the OBD and Forscan to link up and the icon in the top left to go green. After the first time it may take only a minute or two.
Once your set up you need to make a note of the total regens and the Oil Dilution. Log these and even create a spreadsheet and graph, so you can see what is happening visually.
Subtract the previous regen reading from the present and divide the mileage at each reading by that figure, this will give you mileage frequency of regens. If under 100 miles then you may have a blocked air inlet manifold or worst still faulty injectors. Frequent regens will cause fuel dilution of the oil and a rising level. It doesn't matter when you check the oil level , be it hot or cold and the car is on level ground, but use the same method each time.
With Forscan you can check the oil pressure also.
These cars run at two oil pressures. Ticking over or steady load its about 25-30 psig , soon as you give it the beans whether under load or stopped the pressure doubles until the car has reached the speed you require and settles down, then it reverts to the lower reading.
What sort of driving are you doing? Long distance or town driving? Whats your total mileage and year of car. The model doesn't matter only any car with the 2.2d regardless of high or low hp.
I have written on previous posts about DPF filling fast and Injector problems, look them up.
 

·
Registered
Joined
·
113 Posts
Ended up taking it to a specialist. Turned out to be faulty dpf sensor. So new sensor and a chemical clean should sort.
Thanks for all the previous advice.
Don't hold your breath that the sensor will cure the problem, thats what the troubleshooting guide leads them to , even Mazda's.
I see you are in the UK. Mine started like that and ended up with 2 more new sensors, which the dealer was paying for so he looked into it a bit more and found it required new injectors. They don't mention that on the troubleshooting chart as its not supposed to happen, an injector should probably last 15 - 20 years, say 250k miles.
Keep a written check on your mpg , you should be getting 60 on a run and low 50's round the town, if your on low 40's then I would suspect injectors. You are in the age range,2013-16 at the moment.
Keep us posted and check on the other articles I have written. This problem is not going to go away and there will be more cars being affected with it. I suspect your mileage is 45- 52k the mileage they all seem to start.

Check your MAP sensor see if its clogged with carbon. The car should have had a decoke on the house about 2018, but now you have to pay for them.
Its not a DPF problem, thats only doing its job, give the car a couple of hours sat on 70mph in 4th or 5th and that will clear the DPF, especially if you do a lot of town driving. A regen should be about the 200m mark if the car is working right. The lack of long runs due to Covid that you may have taken has not done these 2.2d's any favours.
 

·
Registered
Joined
·
5 Posts
Discussion Starter · #13 ·
Start logging your mpg each fill up, but don't wait untill your empty to fill up.
When you fit your adapter, read the Forscan instructions carefully and set up accordingly. Make sure your mobile device is connected to the wifi from the obd, not your home wifi.
It could take up to 30 minutes for the OBD and Forscan to link up and the icon in the top left to go green. After the first time it may take only a minute or two.
Once your set up you need to make a note of the total regens and the Oil Dilution. Log these and even create a spreadsheet and graph, so you can see what is happening visually.
Subtract the previous regen reading from the present and divide the mileage at each reading by that figure, this will give you mileage frequency of regens. If under 100 miles then you may have a blocked air inlet manifold or worst still faulty injectors. Frequent regens will cause fuel dilution of the oil and a rising level. It doesn't matter when you check the oil level , be it hot or cold and the car is on level ground, but use the same method each time.
With Forscan you can check the oil pressure also.
These cars run at two oil pressures. Ticking over or steady load its about 25-30 psig , soon as you give it the beans whether under load or stopped the pressure doubles until the car has reached the speed you require and settles down, then it reverts to the lower reading.
What sort of driving are you doing? Long distance or town driving? Whats your total mileage and year of car. The model doesn't matter only any car with the 2.2d regardless of high or low hp.
I have written on previous posts about DPF filling fast and Injector problems, look them up.
Thanks thats really useful to know. I will defo take a look (y)
 
1 - 13 of 13 Posts
Top