(South Africa, so it's legal) EGR deleted against my instruction...
Senior Member
Joined: Oct 2018
Posts: 10,606
Likes: 229
From: Northern California
You can say what ever you want about me but most every member on this forum will state 99.999% percent of the time I know what I am talking about. Read the signature in blue "bra'. lol When it comes to any related service concern or issues. Your BS attempting to go outside a very well-engineered system and not let the place you purchased your Mazda do what they want and need to rectify your service related problems/issues because you are butt hurt that the dealership is not working to your expectations is getting to be more or less comical at this point. "bra'' lol
You cant solve your problem on a forum and for the most part you need to go back to your dealer or start legal action against them or go find another place on the internet to find sympathetic readers.
Very few that we are reading in this now comical thread likely cares of your plight one mostly because of what you want to do and what you are unwilling to do.as well it is an isolated not common and the only people that can help you are experienced service induvial. But by your own account not willing to do . And it is going to cost you money in the end at some point.
Carry on....
Senior Member
Joined: Oct 2018
Posts: 10,606
Likes: 229
From: Northern California
Could you clarify as to why you got stuck with this scenario against your own doing.
If the dealer did not inform you of the condition before you purchased the vehicle or if the dealer did the deletes without your knowledge, and you can prove this in either or both cases they are liable.
If you knew of the condition and still purchased the vehicle or accepted the invoice if they deleted after the fact, then you are liable.
This is when you weigh your options, adding in legal fees, as to how to proceed.
Arguing with and/or disagreeing with forum members here will do nothing to resolve your situation.
As a former computer technician/service manager I can tell anyone who attempts to change any computer settings from the original ones voids all warranties no matter what computer system it is.
In other words, if you screw with the original settings on any manufactured product, it is on you, not the manufacturer.
You do so at your own risk, which is why you should never purchase anything that has been modified unless you want potential issue and expenses.
If the dealer did not inform you of the condition before you purchased the vehicle or if the dealer did the deletes without your knowledge, and you can prove this in either or both cases they are liable.
If you knew of the condition and still purchased the vehicle or accepted the invoice if they deleted after the fact, then you are liable.
This is when you weigh your options, adding in legal fees, as to how to proceed.
Arguing with and/or disagreeing with forum members here will do nothing to resolve your situation.
As a former computer technician/service manager I can tell anyone who attempts to change any computer settings from the original ones voids all warranties no matter what computer system it is.
In other words, if you screw with the original settings on any manufactured product, it is on you, not the manufacturer.
You do so at your own risk, which is why you should never purchase anything that has been modified unless you want potential issue and expenses.
Senior Member
Joined: Apr 2021
Posts: 1,859
Likes: 30
From: Maine
Lobstah the vehicle was purchased with no faults. A week later while driving it had a DPF malfunction.
The dealership took the vehicle back and had it for 3 weeks trying to repair it. Gave it back to me working and a week later another DPF malfunction. They took the vehicle back for another 3 weeks. And this continued for about 2 months. In the end they advised me the only way fwd was to do a delete. I complained to the compliance regulator but was advised it could take years before a resolution is given. The dealership made it clear they were not prepared to do much more than a delete and i was without vehicle.
So there you have it. I told them go ahead with the delete because I life to do.
The dealership took the vehicle back and had it for 3 weeks trying to repair it. Gave it back to me working and a week later another DPF malfunction. They took the vehicle back for another 3 weeks. And this continued for about 2 months. In the end they advised me the only way fwd was to do a delete. I complained to the compliance regulator but was advised it could take years before a resolution is given. The dealership made it clear they were not prepared to do much more than a delete and i was without vehicle.
So there you have it. I told them go ahead with the delete because I life to do.
Unfortunately, you agreed to the delete you're on the hook.
A good lawyer might get you off the hook saying your decision was made under duress.
But a good lawyer will probably cost you more money than the vehicle is worth.
You're now stuck with the decision you made, consider it an expensive lesson learned, and move on.
This is how life operates provided you live long enough.
Junior Member
Joined: Feb 2026
Posts: 8
Likes: 1
Lobstah
To the dealer the DPF malfunction occurred A week after delivery of the vehicle. While I would argue its their responsible they would argue it happened in my care and they delivered it working. And during that process for months and maybe years the car would be in limp mode and I would be paying the bank for a vehicle I wouldnt be able to use.
So yes I agreed to the delete but only because I had no other option. I was not going to pay 3000 - 6000 US dollars out of pocket to replace the DPF while i wait for the compliance commision to tell the dealership to settle me years later.
Around here those things happen slowly. Maybe where you from you from to receive a settlement resolution in a few days or weeks after investigation
Either way. Now that I am mobile I can go from A to B while going to the commission to have it settled.
Apparently the DPF malfunction doesnt always mean something is wrong with the DPF. The dealership could not find anything wrong with the DPF. All i know is i had oil rising. The dealerships are given 3 months by law to repair how ever they can. 3 months are over and if I find the fault that actually gave the DPF alarm I can go to the commission to say they haven't repaired the actual problem. Then get settled hiw ever long it takes. Ive heard of some cases being settled only 3 years later.
Hence my being on many forums finding out bits of info about DPF deletes.
To the dealer the DPF malfunction occurred A week after delivery of the vehicle. While I would argue its their responsible they would argue it happened in my care and they delivered it working. And during that process for months and maybe years the car would be in limp mode and I would be paying the bank for a vehicle I wouldnt be able to use.
So yes I agreed to the delete but only because I had no other option. I was not going to pay 3000 - 6000 US dollars out of pocket to replace the DPF while i wait for the compliance commision to tell the dealership to settle me years later.
Around here those things happen slowly. Maybe where you from you from to receive a settlement resolution in a few days or weeks after investigation
Either way. Now that I am mobile I can go from A to B while going to the commission to have it settled.
Apparently the DPF malfunction doesnt always mean something is wrong with the DPF. The dealership could not find anything wrong with the DPF. All i know is i had oil rising. The dealerships are given 3 months by law to repair how ever they can. 3 months are over and if I find the fault that actually gave the DPF alarm I can go to the commission to say they haven't repaired the actual problem. Then get settled hiw ever long it takes. Ive heard of some cases being settled only 3 years later.
Hence my being on many forums finding out bits of info about DPF deletes.
Senior Member
Joined: Oct 2018
Posts: 10,606
Likes: 229
From: Northern California
Wow more on the one sided story … lol
Oh…..btw
If any dealership anywhere in the world can’t find an issues then they do not have employed a factory trained and certified mechanic.
In this case for Mazda that would be a Mazda Factory Trained Mechanic.
we have one that is active on this forum . I am pretty sure there was no problem that stumped him to not find the cause.
For me I can’t even remember how many decades ago that I could find an issue with any vehicle I owned or a customers vehicle. It called staying certified and up to date on current changes, as well as acquiring the necessary equipment and or tool to perform the best service and Diagnostic work.
In my shop we having a standing agreement if one of my technicians can’t find any issue in an hour he/she must buy everyone lunch. I never charge any customer for more then an hour diagnostic labor and if we do go over an hour I also deduct 30 minutes off that first hour off the total service charge if we also get the service work to correct the problem and if there are parts needing replacement 10% off the parts .
Oh…..btw
If any dealership anywhere in the world can’t find an issues then they do not have employed a factory trained and certified mechanic.
In this case for Mazda that would be a Mazda Factory Trained Mechanic.
we have one that is active on this forum . I am pretty sure there was no problem that stumped him to not find the cause.
For me I can’t even remember how many decades ago that I could find an issue with any vehicle I owned or a customers vehicle. It called staying certified and up to date on current changes, as well as acquiring the necessary equipment and or tool to perform the best service and Diagnostic work.
In my shop we having a standing agreement if one of my technicians can’t find any issue in an hour he/she must buy everyone lunch. I never charge any customer for more then an hour diagnostic labor and if we do go over an hour I also deduct 30 minutes off that first hour off the total service charge if we also get the service work to correct the problem and if there are parts needing replacement 10% off the parts .
Senior Member
Joined: Oct 2018
Posts: 10,606
Likes: 229
From: Northern California
It is next to the green circle the purple triangle in the outlined box..
REPORT THREAD
Last edited by Callisto; Feb 22, 2026 at 08:57 AM.
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