Bring it to a diesel shop so it may be taken off and cleaned. The process of removing and reinstalling the dpf is laborious. Normally, you must remove…
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subdude
How much did the DPF cleaning cost, I wonder? I think the EGR codes may have been responsible for the low MPG problems.
In order to alert the customer that the DPF is approaching its estimated end of life and that an appointment for a $4800 DPF replacement should be made, BMW service uses the information-only code 452A. The DPF does not necessarily need to be replaced right away despite the code. Just an alert for BMW servicing. The code won’t cause a warning light to come on, put the car in limp mode, or make an OBD2 scan for emissions testing during a state inspection fail.
Code 4D4A is set off when the estimated DPF life eventually reaches 0 km. At precisely 10 minutes after startup, 4D4A causes a yellow DPF symbol to appear on the cluster and a one-time warning message about the DPF to appear on the control display. In 20 seconds, the yellow DPF symbol disappears. Manual clearing is required to remove the DPF warning notice from the control display. Another information-only code used by BMW service to alert customers that a new DPF is necessary is 4D4A. The code indicates that because the car was driven more miles than the DPF’s predicted life, it has reached its maximum mileage. The code does not put the car in limp mode or make it fail an OBD2 scan while it is being tested for emissions. As the kilometers add up, the car essentially starts bugging the owner about the DPF. The DPF does not yet need to be replaced because of this.
With only 232k miles on it, my 2012 X5 35d still has the original DPF. The 452A code first appeared after 150000 kilometers. At 171k miles, 4D4A began. 232k miles and still going up. Be aware that the frequency with which these codes are activated does not depend on the car’s mileage. They are based on estimates of the DPF’s remaining life.
I’ve been using the Carly app to check the status of regeneration to make sure it’s still happening the way it should. The estimated ash mass is greater than 79.99 g. Since the ash mass reading reached a maximum of 79.99g, I am no longer able to track it. Power and mileage are still typical and appropriate. Regarding the DPF, I have nothing to say just yet. Before the car reaches 300k miles, I anticipate that I may need to take action regarding the DPF.
I thought the $350 fee for the DPF cleaning was really reasonable given that it was the dealer. I had assumed that the engine light was unrelated to the DPF Info message 452A and that it was simply that. It’s encouraging to hear that you have driven so many miles and are still running strong because I hoped to get at least another 100K miles out of the vehicle before “purchasing” it to use for my professional commute. That seems like it should be doable. In addition to the EGR-related codes, I also need to clear the SCR dosing valve-related codes 4C7B and 4C7C. Today I’ll remove the valve and soak in hot DI water.
Since we purchased it in 2013, my wife has owned it and has primarily driven it within the city. Since I will largely be driving on highways, I anticipate that these emission system flaws won’t be as problematic.
Our suggestion
We, along with BMW, advise performing DPF cleaning every ten years or 120,000 kilometers. However, improper engine operation or a defect with the engine are typically to blame for premature DPF obstruction. At our investigation rate, which we advise is diagnosed first before DPF cleaning. Please read the information below to learn more about what a DPF—Diesel Particulate Filter—is and why it is installed.
Can you perform your own DPF cleaning?
Using high-pressure, compressed air is a fairly popular approach to start cleaning a DPF. The easiest way to do this is with a high-pressure cleaning cabinet, which forces ash to push any obstruction out of the way by backflushing compressed air into the filter. When using compressed air, you must take some crucial safety precautions:
- Weigh your DPF if necessary to get its “pre-cleaning weight.”
- Place the DPF into the blast cabinet with care, then firmly shut the door.
- Turn the device on to start putting high-pressure air into the DPF. Additionally, suction must to be used at the DPF’s base to aid in clearing out any ash or particles.
- Your filter needs to be cleaned once it has been compressed. To get rid of any soot or ash that wasn’t completely moved on the initial try, you might need to repeat this step.
- You can take the DPF out of the cabinet and reinstall it in your car once all the cells have been cleared of blockages.
How much mileage should I get to clear my DPF?
The passive renewal To help clear the filter, it is advised that drivers give their diesel vehicle a solid 30 to 50 minute run at steady speed on a highway or A-road.
DPF Cleaner: Does it harm the engine?
Both DIY and aftermarket cleaning treatments often contain additives made up of different chemicals that enter the combustion process and subsequently dissolve the toxic deposits in the DPF or catalytic converter. Then, these can be processed by the system and released through the exhaust. They are said to protect the engine’s other components from harm.
How long does it take DPF Cleaner to start working?
The cleaner functions by lowering the soot particles’ combustion temperature. In order to burn off the particles that have accumulated in the Diesel Particulate Filter, the exhaust does not need to be quite as hot. Therefore, even in vehicles that are not traveling at high speeds for extended distances, passive regeneration is considerably simpler to accomplish. Additionally, it implies that the soot particles burn considerably more quickly, resulting in a significantly quicker regeneration cycle. This greatly reduces the likelihood of developing a blocked filter. Once more, city drivers will find this to be especially helpful as they may not regularly make trips that are long enough to complete an entire regeneration cycle without the cleaner.
A DPF that is empty and free of soot particles will allow exhaust gases to pass through it considerably more quickly. By doing this, your fuel usage will be reduced and you’ll be able to go farther between fill-ups. In comparison to needing to completely replace your Diesel Particulate Filter, DPF cleaner is incredibly inexpensive. The majority of drivers discover that if their car’s DPF warning light illuminates after applying a dose of DPF cleaner to the gasoline tank, the light will typically go out within 10 to 15 minutes without the need for pricy mechanic assistance.
When did BMW start using DPF?
Around 2004, BMW debuted DPFs, or diesel particulate filters, and over time, gradually added them to all diesel models. You probably have a DPF installed if your BMW diesel was manufactured after 2006!
Diesel particulates are collected by a diesel particulate filter. When enough of these particles (carbon) accumulate in the filter and reach a certain level, the vehicle will attempt a regeneration. The car adjusts the fuel injector timings during a DPF regeneration, which causes the exhaust temperature to rise to a level where the carbon buildup should burn off.
Certain requirements must be satisfied for the car to regenerate the DPF. Which are:
- a minimum of 10L of fuel, ideally more than 1/4 of a tank.
- traveling for 20–30 minutes at speeds of at least 40 mph.
- Engine has to be warmed up.
When the car is unable to renew the DPF, a problem occurs. It is quite improbable that the DPF will “naturally” regenerate at this stage because the engine control unit (DDE) stores fault codes in response to the exhaust becoming obstructed.
What is the cost of cleaning a DPF filter?
COST. The cost of cleaning the DPF is $175. There may be a need for additional diagnostic or repair time if a system component fails.
The frequency of a BMW DPF regeneration
I have grown more worried in recent months about my DPF and the failure of regenerations. I believe that my car is 50 months old already, and the fact that I tend to drive like a nun, never exceeding 2k revs, are both contributing factors to my paranoia. I mentioned this to my dealer last month and they suggested I took it out and opened it up for 30 minutes but this is something I refuse to do with my own car, my own fuel, and my own turbo or heaven forbid allow them to do anything! My daily trip is about 35 miles each way 95% dualally sitting at 55 – 65 but I’ve found that the regeneration isn’t finishing before I get home.
For my own sanity, I’m considering checking the DPF. There are numerous helpful tips online about doing this, but finding the time to do it is nearly impossible.
Additionally, I believe it is quite simple to tell when the 1 Series is regenerating because, if the radio is on, it is impossible to hear the exhaust boom when the engine is regenerating. Regenerations typically last for 20 minutes and happen for me every 750–1000 miles, every 2-3 weeks during the summer, but only once per week during the winter because the exhaust gases take longer to warm up. As a result, the regeneration starts later during the winter and only 50% of it is finished by the time I turn off the engine, forcing the car to restart the regeneration process the following time out.
You might not get a response because this is an old thread, and you might be restarting an old thread. Consider starting a new thread, please.
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Do BMW vehicles have DPF issues?
Do you drive a BMW and are you experiencing DPF filter issues? BMW diesel engineering is known for its high standards, hence DPF problems are more often in these vehicles. These vehicles stand head and shoulders above the majority of automobiles and are a good illustration of German dominance in luxury automotive engineering. Sadly, they are not immune to difficulties with their diesel particulate filter, and because BMW engines are so powerful, these issues may be more frequent.
How long is a BMW DPF good for?
How long is a DPF good for? DPFs are made to last for more than 100,000 kilometers. If the car is driven properly, the DPF might go beyond this km.
What symptoms point to a blocked DPF?
The DPF warning light will illuminate on your dashboard as the primary and most evident indication that there is an issue with the filter system, alerting you that it needs to be regenerated in order to clear itself. If both the DPF and engine management lights are illuminated, a more significant issue may already have developed and will need to be identified with a diagnostic scanner.
Here are some further indications of a DPF issue to watch out for:
- Your engine seems to be losing power.
- Your dashboard will display the DPF light.
- Both passive and active regeneration continue to fail
- a strong diesel odor.
- Failure of the Automatic Stop-Start System
- There seems to be too much smoke coming out of your car.
- an elevation in oil level.
- You’ve noticed that fuel usage has gone up.
Another light may appear on your dashboard to alert you to the situation if passive and active regeneration both fail. In such case, you may need our specialized DPF cleaning services.
When it comes to clearing a blocked filter, there are some quick fixes available, such as forced regeneration or the use of chemical additives, but these only clear soot and not ash. We advise you to think about our full DPF cleaning service, where all of the soot and ash is effectively eliminated, rather of squandering money on a very short-term fix. With this cleaning service, we make sure that only the most cutting-edge technology is used to clean your appliance so that it can function properly once more.