Engine Oil Rise

q50_trieber of both kind of interventions we have news. Somo friends in Spain and Italy have been called to the dealer when a Mazda technician was present to perform de ECU update. By other hand others have been done by the dealer and their computers. Il looks like some dealers are formed on this task or have purchased the proper equipment.

BTW we have learned this week from a guy with the oil rise problem what his dealer (who will do the SW upgrade) told him, I quote:

"They told me that the problem lies in certain cars which has been programmed for Eastern Countries (Europe, cooler) and due to the much cold there, the regenerations here are not managed correctly"
http://www.clubmazdacx5.com/temas/cambios-de-aceite-por-subida-de-nivel.667/page-16#post-24993

Just another info.

Regards.
 
VIN is only indicating Australia as a separat vehicle version.
I would declare it a "hot" country but there are also problems !

Do you think Portugal, Spain, Italy are also running as a "cold" version ?
It was really cold last weeks and of course for this reason cars are more often running in cold condition. Therefore time period for regeneration ws further shortened and so interrupted.

On the other side there are really silly things.
- Long distance usage with oil rise
- since last 140 km after last regeneration oil rised further 3 mm !! No idea !
 
q50.....this is a puzzle, a brainteaser...In no way this three countries you mention can be considered as "cold countries". Nevertheless there are regions quite cold in winter. This car have to be "all weather" in Europe, as we have such changing weather. This is no excuse. The comentes of that dealer sound me more as a nonsense excuse.

Yes, there are many reports of long distance usage an oil rise, also from change-man, long trips on desert runs, hot day, and oil rise.
We can not discard any comportament. Just wait the new SW have been run for a longer period and hope for the best. Sorry.
 
q50_treiber said:
I understood this problem solving SW update is done by Mazda engineers and not by dealers with their standard service equipement.
So I am wrong ?
Click to expand...

My PCM upgrade was done by the dealer in a few minutes. No special equipment was required.
 
New dipstick has been fitted to a CX-5 in Spain. It is now the 450- C

http://www.mazdas247.com/forum/album.php?albumid=1460&attachmentid=201185
http://www.mazdas247.com/forum/album.php?albumid=1460&attachmentid=201186
http://www.mazdas247.com/forum/album.php?albumid=1460&attachmentid=201184

The mesurements are as follows:

450 A: Tip to Min = 8.5mm -- Min to Max = 21mm -- Max to X = 13.5mm -- Tip to Top seat: ~564mm
450 B: Tip to Min = 8.5mm -- Min to Max = 21mm -- Max to X = 25 mm -- Tip to Top seat: ~564mm
450 C: Tip to Min = 26 mm -- Min to Max = 21mm -- Max to X = 25 mm -- Tip to Top seat: ~579mm

Now we have three dipsticks in the same engine.

http://www.clubmazdacx5.com/temas/d...s-adoptadas-por-mazda.1041/page-24#post-25168
 
............ so all 3 marks are no 2,5 mm higher !

With same amount of oil, level would now be 2,5 mm lower between MIN and MAX and therefore when reaching "X" there will be again more diesel inside oil !!!
Did I make any mistake ?
 
q50_treiber said:
............ so all 3 marks are no 2,5 mm higher !

With same amount of oil, level would now be 2,5 mm lower between MIN and MAX and therefore when reaching "X" there will be again more diesel inside oil !!!
Did I make any mistake ?
Click to expand...

I looks like that, more gasoil allowance...less customer claims, more time to arrive to the scheduled change. What we don't know is the impact in the long term.
 
Yesterday a meeting with Mazda Service at my local Mazda dealer.
Oil change after 1500 km by Mazda!(4.9 Liters!)
New software Version:83.04!
They will fit the car with the new dipstick in about two weeks(when it is available in Germany).
Cx5-175PS-AWD-Manual Steering/Drivetrain.
 
Chevyfredi said:
Yesterday a meeting with Mazda Service at my local Mazda dealer.
Oil change after 1500 km by Mazda!(4.9 Liters!)
New software Version:83.04!
They will fit the car with the new dipstick in about two weeks(when it is available in Germany).
Cx5-175PS-AWD-Manual Steering/Drivetrain.
Click to expand...

I had a conversation today with Mazda service employee when booking in for SW update and new dipstick.
I had them remove 600ml oil from first service fill (down to 4.5L from standard 5.1L).
Mazda have now informed service depts to subtract 200ml of oil from standard fill (bang on your 4.9L Chevyfredi).

My oil level has risen from midway between low and full mark to midway between full and X (dipstick 450A) in 2500km (with minimal short trips). An estimated 1.2L of diesel diluted in my 4.5L of engine oil. Not a happy camper, hoping new software version 83.04 (thanks Chevyfredi!) will drastically slow the rate of oil rise.

Thanks to all posts on this subject, Mazda service dept listens more attentively when I am armed with the ideas and information gleaned from this thread!
Cheers,
Ben.
 
Difficult to understand why Mazda allowed this situation to get sold before correcting in-house. I suspect the bean counters were just too eager and over-ruled the engineering department.
 
Hello Morsa,

I am not so familar with Spanish Language .
Actual status ? Do you think there is a SW version available which is improving the problem. Do you have a version indication ?
In Germany we a diagnosis version ( e.g. 83.03) which may include different sw updates for different ecu's.

In the german forum I switched now to a pdf file including all details.
 
Hi q50_treiber

In tis mail: http://www.clubmazdacx5.com/temas/d...s-adoptadas-por-mazda.1041/page-27#post-25642
(pdf attached file)

Mazda Spain says that the problem is minoritary and due to a "lack of correlation" between the reading of the dipstick and the instrument light $%&?. This is hard to understand, to say the less, based in our knowledge and experience of the car.

They points later the protocol followed in Spain, that looks the same in all countries: new elevated X dipstick, and redesign for easier reading (model 450-C?) plus software update for the "Spanish market."

I reported there the indicated version (83.04) to the Spanish colleagues, to see if it is the same, whether they can know it.

xtrailman
The point of exposing new cases is the same as the first one: to show what happens out there and to what extent the case involves customers, as Mazda says in its response that there is a minority afected only. You may read it or not, that's is your choice.
More we tell the real situation, the faster the solution may come.
 
@Morsa: This letter was send to every CX-5 owner ?
In Germany we are still struggling that the oil dillution is seen as a problem at all.

4.03.2013 IDS Version 83.04 has just been released and is now available for download.
Same version at UK and Germany
 
Last edited:
Germany also got the first clipstick 450C. Changed to type A when oil was changed.
Still not clear if there is now a SW update available for the oil rising problem
 
Hi all,

I have a couple of theories on what might be causing the oil rise in CX-5 diesel engines, besides the post injection approach that Mazda like Ford, Volvo and others have embrassed:

1.) Defective exhaust sensor readings. There have been many reported cases of malfunctioning exhuast sensors causing the cars to go into limp mode, but there is a strong probability that prior to a complete sensor failing, the false readings lead to more frequent regens and larger quantities of diesel during regens thus rising the oil level.

2.) Biodiesel percentage in diesel. Can everyone do a research and determine the % of biodiesel in the fuel they are using? Biodisel vaporises at a much slower rate than diesel if/when mixed with the oil and also lowers the viscosity characteristics of the oil at a higher rate.

3.) Incorrect readings due to dipstick design and/or not following the guidelines.

4.) Outside temperature might also play a role.

Whatever the reasons, Mazda is only working on new dipstick designs and software PCU settings.

It just does not make sense to have so much random cases of oil rises popping-up here and there and some have not been affected at all.

We can at least try to make a corrolation regarding the amount of biodiesel and the rest is solely up to Mazda to speak up and/or fix quietly.
 
Last edited:
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