DPF Clogged / Blocked - Could It Be A Sensor or Thermostat Problem? (BMW Diesel Particulate Filter)
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- Опубліковано 6 лют 2020
- In today’s video we have a look at how one issue can cause a second issue! If your diesel BMW develops an sensor fault or has a bad thermostat, then there is a good chance that you will also get a DPF warning light and DPF clogging! Why does this happen? Watch and find out!
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Congratulation, You've hit 100k total video views. Nice video!
Hi, thanks for noticing! :-)
Thank you for the valuable information.
Hi, thanks for watching, and glad it helped out!
hi steven, for sure it can if you notice to late .easy tot notice check the coolant temp ... dont you just love active regenerations ;-) greetings belgium watches you
Você está certo meus parabéns, tem muita gente com problemas no filtro partículas, causado por pequenas falhas em sensores.👍👌
Many thanks! If you used the subtitles, did they get translated okay?
Olá Steven não uso as legendas, mas o UA-cam só tem legendas em inglês. Não é comum ter noutra língua. Mas ok😉
Em breve, traduzirei traduções para alguns idiomas diferentes, mas se você entende inglês, isso é ótimo!
Interesting video, I think I’m have an issue with my wife’s 2010 x1 diesel, it appears to do a forced regeneration with the scanner but it logs a fault with the pressure sensor afterwards ! I spotted on the live data that one of the sensors seems to be reading-40 degrees.....!
Hi, thanks for watching! I think it has given you the clue you need - check the sensor connection, and if that is okay then get a new sensor in there!
Thank you for the informative video. I have a check engine light on in my BMW E60. And, I get the particle filter error along with possibly reduced engine power warning in about 5 minutes after the car is running. The mechanics haven't been able to figure out the exact issue. Any suggestions on where I should start looking? Thanks!
Hi, thanks for watching! You will need a list of all of the DTC's (error codes) to help pinpoint your DPF problem. Many issues can cause the DPF regeneration to stop working and result in soot clogging - from this vid you saw that it could be a sensor malfunction or a faulty thermostat, but it can also be an EGR valve issue, a glow plug issue, a boost leak, a turbo failure or maybe the filter has just reached its ash limit and needs a clean.
@@StevenBTuner thanks so much for your reply. I've saved all your videos that talk about the possible culprit. I'm going to show them to my mechanic and based on the codes, will work on zeroing down on the actual issue. Thanks again!
Hi Steven great video once again. The problem I have is my BMW 320d dosent seem to be getting to temperature 90c well to be honest it dose eventually after 25 mins or so of driving and when I switch on the heater the temp drops quickly to 85c. But having said that the outside temperature at the moment in the UK is 0c is it normal for this to happen is such cold conditions thankyou joe
Hi, it is quite normal for these diesel engines to take ages to warm up, so you have no problems as long as it eventually reaches the normal thermostat temperature of 86 degrees C or so. It only becomes an issue when it comes to DPF regeneration, because the car needs to be fully up to temp before a regen will be triggered.
Hi Steven, thanks for the video, it's very useful. I recently replaced my DPF temp sensor on a VW T5 as it developed a 'malfunction' error code. This fixed my check engine light for 1500kms, however now I'm getting the same error! Previously I was getting an intermittent 'implausible signal' error with the DPF pressure sensor too, though I only replaced the temp sensor. The DPF has never been cleaned in its 180,000kms life. Can you advise the best course of action? Should I replace the pressure sensor, even though it's the temp sensor causing the check engine light to come on?
Hi, thanks for watching! I would estimate that your filter at 180,000kms is going to be somewhere between 70-100% full of ash, so getting it fully ash-cleaned is not going to be a waste of time/money, especially if you are keeping the vehicle for some years to come. If you don't mind a bit of DIY, then you could follow my other video and do a full 2 stage clean on the DPF: ua-cam.com/video/LE1boZ3fhLg/v-deo.html&pp=sAQA If the filter is really clogged up with soot (or both ash and soot), then that can cause the tube that goes to the pressure sensor to also get clogged up, and stop it from getting a good reading - so replacing the pressure sensor itself may not change anything, unless you can guarantee that the tube is in a good state.
@@StevenBTuner I shall give it a clean following your video then! Thanks for the advice, I really appreciate it!!
Hi Steve,
Like you channel very informative, I have a problem with my 2014 bmw 328d, 150k miles I have a code came up P24ae, which i believe is particulate matter sensor. Is this something I need to take care of it asap or do you think it might be an DPF failure. Any help would be appreciated 🙏
Hi, I would say that you never want to leave any DPF related error for any length of time. At 150k miles most cars would have quite a high ash content - and this will be evident from regenerations that are being scheduled at less than every 150 miles. If the DPF has never been cleaned or replaced before then it could be the time. Failures of the DPF can happen too of course, so if you wipe a white cloth or towel around the inside of the exhaust pipe at the back of the car then it is pretty obvious whether the DPF is still working (cloth stays white) or whether the ceramic material has cracked (cloth is black).
I took your advice and wiped a white cloth around the tip of the exhaust, it appears that the cloth is a little black but I would say its not that bad, but it hard to determine if it's bad or not bad..so my guess would be that the sensor is doing its job, it's most likely not the sensor failure just dirty DPF.?..and i probably should take it out to clean it..again huge thanks..
I have a problem with my Volvo v70 D4162T with a rising oil level in the engine and some non.specific fault codes and it seems to be the result of one or more of theses sensors failing. What I've found is that since the car can't read the DPF it goes into constant regeneration mode causing diesel (or HVO100 in my case) to pass by the rings and end up in the engine oil. Maybe the EGR is playing a part in this as well but I don't know really. Apart from the rising oil level the other symptom of this is worse fuel economy. Another problem for people with old diesel engines to keep an eye on since it can cause increased wear in the engine (diluted oil and the diesel cleaning the cylinder walls from the protective oil layer) and eventually runaway, self-feeding catastrophic failiure when the oil level gets too high.
Car has traveled almost 250 000 km.
Hi, oil dilution with diesel will kill your engine, and it is usually the conrod bearings that will fail. I have a video on this topic scheduled, as it is a bit of a sad and avoidable way for an engine to self destruct. There might be other factors involved, but at that mileage you are certainly going to have enough ash in the DPF to cause a problem like you are experiencing all on its own, so I would say that it is time to get the DPF professionally cleaned, or clean it yourself if you are up for a bit of a messy job.
Ty for all the knowledge. You've any idea about these codes? 00483C Boost pressure plate & 004530 Boost pressure control, control deviation, causing 00452A & 004D4A DPF
Hi, thanks for watching and commenting! The first thing to check is if your turbo actuator is working any more, or if is trying to work, but can't because the VNT ring in the turbo itself is jammed or has self destructed. If your turbo has self-destructed in a major way and is dumping oil into your DPF, then the DPF isn't going to be very happy about it. However, if the engine computer can't control boost any more, then there is a chance that that alone could effect the DPF regenerations. The 00452A error is DPF end of life (usually a set number of miles designated by BMW), and may not be related to the other errors, it could just be that your car has hit 120K miles (or whatever it is for your model).
@@StevenBTuner The turbo actuator is not always working properly, i have "turbo lag" under 2000 rpm. If I change it its just "plug and play" or needs to be calibrated? BTW my car is e90 320d eff. dynamics (120kw) from 2011 and has around 152000 miles on it.
The actuators themselves are quite strong and reliable, but if they can't move the variable vanes easily then they will have issues. When your car has been switched off for a few minutes (and not hot from a drive), you should be able to move the actuator arm easily by hand (or by pushing on it with a screwdriver etc). If it doesn't move easily then there is definitely an issue (maybe 20% chance that it is an actuator issue, and 80% chance it is the turbo's VNT ring that is dying or dead). You need to calibrate an actuator 'pretty close' for it to work 100%. (Your car's actuator is a bit different to mine, but you can get a general idea of the calibration procedure from the video I made about re-building the turbo). With that number of miles, your DPF is probably due for a removal/chemical clean (if you haven't done it already), and then the ash-counter needs to be reset in the engine computer.
@@StevenBTuner Thank you so much for the information, I'll check the actuator and let's hope doesn't need a new turbo. I'll search for some company to clean the DPF. Keep up the good work, love your videos and as a non-mechanical person I've learned a lot from you, so thank you!
Hi can I get ur email please have an issue with dpf if u have time to help me with thanks
Hi Steve got an check engine light and plugged in an OB2 reader and got the fault codes P2002 and P242A. The DPF efficiency below threshold and the EGT sensor circuit bank 1 sensor 3. The person I bought it off said he replaced the dpf and the sensor about 7 months ago. Could it be that the sensor is the issue and causing the dpf to get clogged up or am I misreading the issue?
Hi, it could be a sensor...but it is more likely to be a clogged EGR valve. It is where I would start.
thanks. How can I tell if my car has had a DPF and EGR delete? I bought a car recently and it has so much power compared to other similar cars. please advise?
Hi, thanks for watching! A DPF delete is easy to spot, all you have to do is look at the exhaust pipe - it is is shiny steel inside then the DPF is intact and working, but if there is any black soot at all then it is either deleted or broken. An EGR delete is a lot trickier to spot because there are so many ways it can be done. It can be replaced with a shiny stainless part (easy to spot once the engine cover is removed), but it can also be mapped out in the software either partially or completely - so there is no physical change to the engine. The only way for sure to know is to pull off the boost hose where is goes into the EGR and look/listen when you start the car - a normal EGR will open a close quite a bit when the car is idling away. Your car might just have more power from a remap (chiptune) with the DPF and EGR left alone.
What about Egr , if is not working does prevent dpf from regenerating?
Hi, an EGR valve malfunction is probably the most common reason for DPF clogging.
my lexus IS 220d regrating every day. white grey smoke after five or ten minutes of driving. I have cleaner dpf with thr. there is no engine light. what can cause that.
Hi, if your car has over 150,000 miles on it then the DPF is probably full of ash and needs to be ash-cleaned or replaced. When the filter is full of ash, there is very little space left for the soot to collect, so the regeneration has to happen very often. You don't want to have regenerations happening that often as it can result in your engine oil getting a lot of diesel in it, which can ruin your engine bearings.
check your exhaust back pressure sensor values . maybe the hose is clogged or ripped caussing to high back pressure values . whenever the backpressure gets to high the car will think its the dpf thats full and regenerate constantly due false backpressure.
My 2017 520d showed dpf pressure sensor issue on the computer. Got that fixed and the engine management came back on after a short drive.
Perfect result!
@@StevenBTuner the engine management light came back on again, so it wasn’t a perfect result. 🤦♂️
@@IbnImani Hi, there is often more than one issue, so keep up the investigation.
Hi Steven, Got a problem with a 2,0 diesel Mondeo - 2009. (no vapouriser) Totally fine until a new DPF was fitted a few months ago. Now oil has to be changed about every 400 miles for dilution. I think the car is constantly regenerating (hot, exhaust smell, fan going) but garage says the DPF is working normally and thinks the diesel pump is leaking to the sump! The oil smells of exhaust fumes and I'm convinced it's a DPF issue. No DPF fault codes are showing but could the DPF sensor or pipes be misreading without throwing up a code?
Hi, it certainly seems like a DPF issue - you need to get a good diagnostic OBD2 reader connected and see what the sensors are reading.
@@StevenBTuner Thanks for getting back Steven. I've got a reader and Forscan software. DPF pressure is 0 at idle rising to about 1.0 on the move. It says last complete regen was about 800 miles ago but one failed regen since. I'm getting a reading for 'Estimated volume of fuel in oil that's light grade' of 55 cubic inches. Is this the amount of diesel in the sump? Can it actually measure this or just estimate from number of regens? That's around 1 litre!
@@an-nonnymous9580 There is a bunch of conflicting information there, so something is strange for sure. If you do mostly longer journeys then it could be ok having the last active regen 800 miles ago, although I'd be inclined to do a steady 30 minute drive at 50+ miles/hr to see if the active regeneration will trigger. I would expect oil dilution like that only if the active regeneration is being triggered every 50 or 100 miles, which doesn't seem to be the case, so either the way that the oil dilution is measured/calculated is going wrong or you have a separate issue causing the oil dilution like a faulty fuel injector or the HPFP is indeed leaking into the sump as your mechanic has suggested. I definitely be inclined to check out the HPFP first.
Thanks for getting back Steven - very much appreciate your thoughts!
Took the car to a Ford dealer and diagnosed on IDS. Nothing showing apart from 'oil deterioration'. They are baffled and almost certain it's not the HPFP. They did have a Kuga in with same fault and never got to the bottom of it - had to be sold at auction - it had just had an aftermarket DPF fitted too! They said they could get Ford involved but they would want a genuine Ford DPF fitted (£750)
Anyway I've sourced a second hand Ford DPF on Ebay and got it fitted two days ago. That's 100 miles and no problems yet. I'd say that before it was regenning about every 50 miles (or attempting to) but diagnostics don't show this. Ford dealer reset everything and I've changed the oil again. Funny thing is the oil always remains clean and undiluted until the first 'regen' - I think if it was the pump or an injector it would be continuous. Seems to follow a pattern - reset ECU - wait for around 8 'regen attempts' - trigger oil warning! That's why I think it's just counting regens. If the pump was leaking I don't think it would know - unless there IS an actual 'oil quality' sensor.......
If the 'genuine' DPF makes no difference I'll get the pump checked and go from there.@@StevenBTuner
@@an-nonnymous9580 I'm intrigued to hear how this story ends! You don't sound like the kind of person who is just going to sell off the car, so you will end up with some very good knowledge that could be very helpful to other Mondeo owners, and perhaps all modern diesel owners (depending on what you find out). The way that different cars provide different amounts of information to the diagnostics unit is a reason why it is necessary for folk to seek out a specialist in their own car brand. As for the oil quality sensor - yes they do exist, and if there is one in your 2009 Mondeo then it would have been one of the first production cars to have the feature installed.
Hi steve, i have a bmw 730d g11 2018, EML keeps coming back on after every regenration if its driven local, changed all the sensors , egr cooler, dpf taken of cleaned, changed ad blue SCR filter, but the probelm still comes back every few 100 miles when a regenrstion is not complete or been driven local, but if its driven on high road when regenrationnis happening its fine, the errornis reading DPF EFFENICY LOW Bank1 also changed a bad Nox senor, do you think i need a new dof because there is noting else to change , all been genuine parts from bmw deales, pls if you could help thanks.
Hi, to regenerate you need the engine oil temp over 80 degrees celcius, a constant speed over 80km/h and a fully closed EGR valve. The first place to look is to see if the engine temp gauge is reading correctly and if the engine thermostat is opening correctly.
@@StevenBTuner ok thanks can I see that all threw obm computer if connect 1
Hi, connecting a good OBD2 reader like the Autel AP200 will give you a good idea of what the engine temperature is doing. To answer a previous question you asked: You shouldn't have to replace a BMW DPF for at least 20 years - and then only if it either corrodes away or if the car is running a very aggressive 'tune' that is overheating the DPF.
Hi Steve !! I made a great progress with my 2014 BMW 328d with 130k miles. I have a code that says “ Particular sensor, diagnostic feedback: meander temperature measurement, electronically defective” does this mean One of the temperature sensors went bad? how to know the one that went bad?
Hi, good to hear that your 328d is coming along! Those kinds of errors can be a bit of a nuisance for sure - if they occur along with other errors then you can get some more clues, but often you just have to unplug each suspect sensor in turn, and see how the errors change.
@@StevenBTuner I will replace Nox and particulate sensor to see
Hi Steve, i have problem whith diesel delution on my bmw 525 xdrive F11 2011, i take out 1.5 liter oil and diesel from engine could be from dpf or its something worst , i also have exhaust back pressure eror..
Hi, oil dilution often happens because your DPF is close to full up with ash, and so there is very little room for the soot to accumulate and so active regenerations are scheduled very often. Some of the extra fuel injected travels past the piston rings and ends up in the oil. It is very bad for your engine as diesel isn't very good for lubricating your rod bearings etc. Get that DPF cleaned as soon as possible, or if you are okay with DIY then see my other video called "The No Damage DiY DPF Clean".
@@StevenBTuner Thank you very much for your answer, it really means allot. I just have one more question, is there a difference if the oil suddenly jumps up or slowly by time with the driving? Because the engine is working good, no black or white smoke, no lossing power, the engine works just fine
Best regards.. .
@@jozicici Hi, oil dilution due to frequent DPF regenerations happens slowly over the time between oil changes. If it happens really quickly then it can indicate that a fuel injector is not shutting properly, which can be disastrous.
first check the sensor connection and its values while idle and while driving .i suspect your values gonna be to high , inspect the hose for cracks or maybe it popped of the sensor or cat , if this doesnt fix change the backpressure sensor. succes with diagnose
hi steven what do you think about this... does a filthy temp sensor causse miscalculation of backpressure...?
Hi, if the temperature sensor is really filthy them the tube to the pressure sensor might be blocked up too - and that will cause an issue for backpressure calculation.
@@StevenBTuner hi Steve sorry to but in on the reply. I've had huge work done to irradiated some big issues inc head gasket lifters cams rickers turbo kit car cx5 ..only thing that's really getting me wound up is it can often go 80-90+ miles with no obvious regen. Then like the last few days start up engine temp light go out and start a regen . I let it finish each time but finishes quickly if idle. Then do sane again next say or next druve then again. Many times it may be solved by driving down a bypass and go 70-90 miles again or sooner .
Lately my thiught was dpf sensor itself . Yes mileage is 103k but know others with mazda 6 same engine with 150k on the clock and good still .
I can only think maybe that sensor or ox sensor? Thanks in advance
@@kevinhancock4064 Hi, it is time to plug in a good diagnostics unit so that you can see whether the regens are failing, and what might be causing it. If everything is working well then it shouldn't be attempting a regen until 250 - 400 miles has been reached. Common issues that stop proper regenerations are glow plug, EGR, thermostat or sensor failures.
@@StevenBTuner well the thermostat is pretty new but I've heard glow plugs can cause it as u sayd I bet they never been changed ..thanks for the heads up mate I'll invest in a better device I may get glow plugs done anyway not a bad thing cheers matey
@@StevenBTuner I had to look and it stayed that glow plugs that can reach high temps quickly reduces regen time etc. Makes sense I know it may not be that but a place to start aye
My 2.0 tdi with dsg flashed the eml light with code p 2022 dpf treshold below...at 84 k , been driving it for 7k with no problems.
Hi, thanks for watching! Sounds like you have a failed sensor with code P2022, but not on a very critical system, so you can probably get away with not doing anything about it until some other work needs to be done near the intake manifold.
@@StevenBTuner Thanks , that figgures , cause I went to Halfords to get a forced regen and they refunded me bc they said the dpf is not clogged , they can't do anything to it.
could the 480a 481a code be caussed by clogged exhaust pressure sensor..since the dpf is cleaned...
forgot to say that the dpf still regenerates while code 480a 481a are pending
Hi, were those codes cleared when the DPF was cleaned? I don't think they will clear themselves. If they keep coming back then you will need to connect a diagnostic unit and look at live data to see if the backpressure is changing as expected - otherwise the sensor might be bad or the pressure tube blocked.
@@StevenBTuner Yes but keep popping back up , it's a new Exhaust gas pressure sensor and the tube looks in good condition. I think the O2 is Fried causse this measures thé air right
Hi, I drive a 2012 Ford kuga tdci, the engine malfunction light kept coming on. I ve paid for a diagnostic regen of the dpf, this did not fix the issue, then I paid for a new dpf pressure sensor. Just driven the car 100 miles and the warning light has not reappeared. This does sound right? Will Ionger have the issue now?
Hi, thanks for watching! It sounds like you've solved the immediate issue. Time will tell if there is a second issue lurking around...
@@StevenBTuner what would you advise would be step 3 if the engine malfunction lightbwas to come up again?
Hi, the check engine light is to let you know that a critical error code has been recorded - so you can't know what to do until a diagnostic unit has been connected, and the full code has been revealed.
My car's exhaust temperature sensor is going to be replaced tomorrow. I am worried and I hope after the replacement DPF regeneration will start otherwise it is very costly to replace DPF.
Hi, I hope it works out well for you, and that you've caught the issue before too much soot has clogged up the DPF. Even soot blockages can be cleaned out of a DPF, but it requires an overnight stay in a high temperature oven, so is a bit more expensive...
I had the same issue I think. I got the fault code: P242A about the exhaust temperature sensor and P2002 about the dpf efficiency below threshold. Did the replacement of the egt fix the problem??
My BMW X5 DPF warning light comes out and disappears once, only once each drive. I have used JLM spray to clean once but issue still persists. The DPF was cleaned by a mechanic shop last year. Will it be a sensor problem or DPF need to be cleaned again? Thanks.
Hi, that's a strange one for sure! The best way to start is to get an OBD2 reader connected, and find out what error is being logged. The Autel AP200 is low priced and works really well for BMW, so it is my recommendation. The DPF should only get clogged up once every 250,000kms or so, so a regular problem indicates a failure with some other system, or with a sensor.
@@StevenBTuner Thanks for your prompt reply. Do you think if it is helpful to use one can of JLM spray to clean DPF again? At the moment, I will check the EGR valve as well.
@@philipw4831 Hi, that kind of product is best suited to help burn off the soot at a lower temperature - which can be useful if your vehicle only does short city trips. It won't really fix the underlying issue that you have.
@@StevenBTuner Thanks
We have a tractor with a same issue. Engine cold start glow plugs didnt work for years hence dpf blocked up...lol
Hi, thanks for watching and commenting! Haha, even on old tractors the systems are more inter-connected than most people realise at first.
I have a 2014 F11 it has a temp gauge fortunately. Q. Do these fuel additives work. i.e. DPF cleaners and the likes?
Hi, thanks for watching and commenting! I'm glad some cars still have a full set of gauges :-) If all of the systems built into your BMW are working properly, then there is absolutely no need for DPF fuel additives. The idea is that they lower the temperature needed to burn off the soot, and could be useful if you live in a big city and only do slow stop-start trips, but a better plan would be to try and get a longer drive into the schedule every week or two.
@@StevenBTuner Thanks for the reply. I do a 100 mile round trip to work 5 days one week and two the next and so on. Travelling at around 80 mph, traffic allowing. I take it the DPF is regenerating during some point. What are the indicators that it is?
Hi, with that kind of driving your DPF is regenerating passively most of the time. Maybe every 1,000 miles is runs an active regeneration cycle. Would would need to connect up a diagnostic scanner to see when the next active regeneration is scheduled. The F11 cars are betting at giving warning lights for problems that would effect the DPF (than earlier cars), so unless you have some something specific that doesn't feel right, then there is every chance that your DPF is working fine.
@@StevenBTuner Thanks for the prompt reply. The car has done 83K and drives a dream. On two occasions I've had drive train fault come up. I bought the auctel reader and read the code which showed as the EGR. But it has not done it for a couple of months now so I am not too concerned. What I have done is stopped using supermarket fuel and put in the BP ultimate fuel and this certainly made a difference. BTW I live in the UK.
Hi, when it comes to fuel specifications, there is still quite a bit of variance, and I think you are doing the best for your car by going for the premium fuel. All of the diesel (for cars) in the UK (and most countries now) has to be low-sulfur, but there are good reasons to seek out the ultra-low-sulfur fuels that cost a little bit extra. I am doing a video about this soon, as sulfur is the main reason that DPFs get clogged up eventually with ash. Premium quality fuels also have a better detergents, so it could very well be helping to keep everything from clogging up too much. All the best in keeping your BMW in top condition!
It's very stupid that BMW removed the temp gauge from the cluster. Yesterday while driving with OBD dongle and Tourqe PRO I found that on the highway my engine/m57/ dipped below 60 degrees C while cruising on the highway hence bad thermostat and if you don't have any diagnostic hardware you wont know until it's too late.
Hi, thanks for watching and commenting! I agree, it is a pretty important thing to know about for sure. I drove a turbo VW a while ago that at least had a low temperature blue warning light that stayed on until the engine warmed up - not as good as a gauge, but better than what BMW have decided to do for most of their cars...
Whatever you do- don not replace you dpf without checking the video he has mentioned-its save me about £1800-£2000 for the sake of a little work
Hi, it is great to hear that my vids are helping out!
😬background music is dodgy. Informative though.
Hi, thanks for watching!
my last bmw and no more.
Hi, thanks for watching! I hope you have now found a car that is working out better for you.
ITS " BIEMVI " .. NOT BMDUBLEW
Hi, thanks for watching! Haha, absolutely correct! Native English speakers get pretty much every European and Asian car name wrong.
@@StevenBTuner couse They stupid