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DPF Soot level display

<div class="bbWrapper"><a href="https://forums.mbclub.co.uk/members/11615/" class="username" data-xf-init="member-tooltip" data-user-id="11615" data-username="@BlackC55">@BlackC55</a> You mean when the DPF is going to do it's regen? <br /> <br /> One time I put the car in the garage after a long drive, the fans stayed on - it was a vey hot day so thought nothing of it.<br /> <br /> Next morning, oil all over the floor, oil seals had blown. Later figured it was stuck in a regen - long story - <br /> I know the cooler seals blow but this was too much of a coincidence, prob 800C at the dpf and over 105C oil temp and shut in a garage with little air circulation didn't help.<br /> <br /> I now don't like to shut it off and put it away untill the dpf is back down below 200C<br /> <br /> I'm doing longer motorway journeys now so it's not so bad as it mainly regens on route but before, 9 times out of 10 it would start a regen after a 15 mile drive while coming off the motorway 2 miles from home..<br /> <br /> I can have a quick look at the app, tells me 30%, so good for a couple of days. If it shows 80% I can maybe choose a better route and keep an eye on it till it's done..<br /> <br /> Guess in short, I'm paranoid and don't want to fork out another 2k + on repairs.</div>
 
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<div class="bbWrapper"><blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3137937" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3137937" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3137937">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> You mean when the DPF is going to do it's regen? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>My thinking is a little different.<br /> <br /> By being able to see the soot level and the mileage since last regen I would get an early(ish) warning that the regen system has failed.<br /> <br /> It may be something as simple as the regular failure of the DP sensor.<br /> <br /> I could take remedial action before the system, such as the DPF, requires more attention.<br /> <br /> Then there is the too regular regens, more difficult to address but still a warning of issue.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3104325" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3104325" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3104325">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Found the DPF temp, thought I also had the mileage sorted, it works and only goes up when driving unlike the DPF % which can rise while stationary. However, unlike my iCarsoft, it drops down during a regen ?<br /> Anyhow, decided this is not needed so removed the display. I now know when I need to find a clear route to let it start/finish a regen.<br /> Just switch it on every few days and check the %, then keep an eye if needed.. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>HI Merc 07<br /> <br /> Could you let me know the PID that you use for soot %, I have an icarsoft so can see it but also have the torque app which is so much nicer to use.. <br /> <br /> Torque works fine on most cars i have tried but on my Mercedes (E250, 2013) it doesnt see the DPF data or exhaust gas Temps.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 173612" data-quote="Chalky600" data-source="post: 3250681" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3250681" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3250681">Chalky600 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> HI Merc 07<br /> <br /> Could you let me know the PID that you use for soot %, I have an icarsoft so can see it but also have the torque app which is so much nicer to use..<br /> <br /> Torque works fine on most cars i have tried but on my Mercedes (E250, 2013) it doesnt see the DPF data or exhaust gas Temps. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>The egt temp is one of the standard PID's within the torque app, you should at least see that one.<br /> <br /> My DPF level PID will not work on your vehicle, you have a different ecu.<br /> <br /> If you have the icarsoft, use an obd sniffer to figure the instruction sent to the ecu...</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3251244" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251244" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251244">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> The egt temp is one of the standard PID's within the torque app, you should at least see that one.<br /> <br /> My DPF level PID will not work on your vehicle, you have a different ecu.<br /> <br /> If you have the icarsoft, use an obd sniffer to figure the instruction sent to the ecu... </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Thanks for the reply, merc07 <br /> <br /> May well have to resort to sniffing the ODB, Its something that I have not sniffed before ;-)<br /> <br /> I struggle to believe that no one in this forum knows the codes for my car though ..</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 173612" data-quote="Chalky600" data-source="post: 3251249" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251249" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251249">Chalky600 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Thanks for the reply, merc07<br /> <br /> May well have to resort to sniffing the ODB, Its something that I have not sniffed before ;-)<br /> <br /> I struggle to believe that no one in this forum knows the codes for my car though .. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>I think not many understand PID values / Torque app.<br /> <br /> Most are happy to install an led to tell you when the regen is taking place which in my view is a little late, and obvious anyhow..</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3251416" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251416" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251416">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I think not many understand PID values </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Me toooo</div>
 
<div class="bbWrapper">AFAIK the only PID that gives you something other than DPF temps is 7A. That can give you DPF absolute and/or delta pressures. I don't know of one that gives you soot load in grams or percent.<br /> <br /> To get any useful data you'll need the mode $22 DIDs, which is what Xentry, iCarsoft etc use. My car is only Euro 3, so I can't sniff what DID is used for that unfortunately.<br /> <br /> <blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3251244" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251244" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251244">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> My DPF level PID will not work on your vehicle, you have a different ecu. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> Mode $01 PIDs are ISO standardised, so are the same for MB, BMW, Ford etc.<br /> <br /> Mode $22 DIDs are manufacturer proprietary, but even then usually a manufacturer will commonise them across all their vehicles. That's the whole point of a DID, to reduce complexity.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 13886" data-quote="merc07" data-source="post: 3251416" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251416" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251416">merc07 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I think not many understand PID values / Torque app.<br /> <br /> Most are happy to install an led to tell you when the regen is taking place which in my view is a little late, and obvious anyhow.. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Looks like the only additional paraphernalia for ODB sniffing I need is a splitter cable, think I have everything else. Will prob give it a go at some point...</div>
 
<div class="bbWrapper">Yes, correct, I use a $22 PID, sniffed from the OBD using a simple home made sniffer, there are plenty of details online on how to build one.<br /> <br /> The PID only seems to work on my ecu type....It's the same with icarsoft, for some vehicles it doesn't show levels, some have percent, some grams, all are different - that maybe down to the calculation though, who knows.<br /> <br /> As for the sniffer, think I used a nano and a 2515, I'll check laters, like you all I needed was the splitter..</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 173612" data-quote="Chalky600" data-source="post: 3250681" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3250681" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3250681">Chalky600 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Torque works fine on most cars i have tried but on my Mercedes (E250, 2013) it doesnt see the DPF data or exhaust gas Temps. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote><br /> If you want to know what mode $01 PIDs are supported on your car you can see if you don't mind using the Elm327 terminal. The Car Scanner app has one.<br /> If you read PID 00 it will respond with a bit encoded response detailing which PIDs 01-20 are supported. PID 20 will detail PIDs 21-40, etc. <br /> <br /> In this example PID 20 responded B001A001, which is bits 0,13,15,16, 28, 29 and 31. That means PIDs 21,23, 24,30,31,33 and 40 are supported.<br /> <br /> To show that works, reading PID 21 gives a positive response, PID 22 gives a negative response.</div>
 

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<div class="bbWrapper"><blockquote data-attributes="member: 173612" data-quote="Chalky600" data-source="post: 3251249" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251249" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251249">Chalky600 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> Thanks for the reply, merc07<br /> <br /> May well have to resort to sniffing the ODB, Its something that I have not sniffed before ;-)<br /> <br /> I struggle to believe that no one in this forum knows the codes for my car though .. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>I’m confused here, what is “sniffed” and “sniffing” ?</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 141812" data-quote="Gnasher141" data-source="post: 3251690" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251690" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251690">Gnasher141 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I’m confused here, what is “sniffed” and “sniffing” ? </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>It's just logging the CAN traffic between the tester and module to reverse engineer the messages.</div>
 
<div class="bbWrapper">I find this thread fascinating. At the risk of derailing it, has anyone estimated the additional diesel consumed during a regen? I bet it isn't included in the mpg figures.</div>
 
<div class="bbWrapper">Torque scan has a similar function also, not used it before will have to have a look.<br /> <br /> I watched the live mpg just before and during the regen while on cruise at 60mph on the motorway - there was zero change - maybe that is also rigged !</div>
 

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<div class="bbWrapper"><blockquote data-attributes="member: 163401" data-quote="Supernoodle" data-source="post: 3251686" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251686" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251686">Supernoodle said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> If you want to know what mode $01 PIDs are supported on your car you can see if you don't mind using the Elm327 terminal. The Car Scanner app has one.<br /> If you read PID 00 it will respond with a bit encoded response detailing which PIDs 01-20 are supported. PID 20 will detail PIDs 21-40, etc.<br /> <br /> In this example PID 20 responded B001A001, which is bits 0,13,15,16, 28, 29 and 31. That means PIDs 21,23, 24,30,31,33 and 40 are supported.<br /> <br /> To show that works, reading PID 21 gives a positive response, PID 22 gives a negative response. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Thanks for the reply and Info, I believe that the TorqueScan App does similar, i have downloaded it but not had chance to try it yet. was going to give it a go when I have a bit of time spare.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 163401" data-quote="Supernoodle" data-source="post: 3251719" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251719" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251719">Supernoodle said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> It's just logging the CAN traffic between the tester and module to reverse engineer the messages. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Aaaaah that’s cleared that up<img class="smilie smilie--emoji" alt="🥴" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f974.png" title="Woozy face :woozy_face:" data-shortname=":woozy_face:" loading="lazy" width="64" height="64" /></div>
 
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<div class="bbWrapper"><blockquote data-attributes="member: 2379" data-quote="DITTRICH" data-source="post: 3251734" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251734" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251734">DITTRICH said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I find this thread fascinating. At the risk of derailing it, has anyone estimated the additional diesel consumed during a regen? I bet it isn't included in the mpg figures. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>I did an OBD display reset, cruising at 60, on the M25. Not definitive but I calculated an increased consumption of less than 2%.<br /> <br /> Around town I think this would be worse.<br /> But it demonstrated to me that it isn't a concern.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 109436" data-quote="m80" data-source="post: 3251768" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251768" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251768">m80 said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I did an OBD display reset, cruising at 60, on the M25. Not definitive but I calculated an increased consumption of less than 2%.<br /> <br /> Around town I think this would be worse.<br /> But it demonstrated to me that it isn't a concern. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>I was foolishly? hoping for a figure in additional estaimated litres (over the number of miles taken for the regeneration process). But thanks for the %.</div>
 
<div class="bbWrapper"><blockquote data-attributes="member: 2379" data-quote="DITTRICH" data-source="post: 3251771" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch"> <div class="bbCodeBlock-title"> <a href="/goto/post?id=3251771" class="bbCodeBlock-sourceJump" rel="nofollow" data-xf-click="attribution" data-content-selector="#post-3251771">DITTRICH said:</a> </div> <div class="bbCodeBlock-content"> <div class="bbCodeBlock-expandContent js-expandContent "> I was foolishly? hoping for a figure in additional estaimated litres (over the number of miles taken for the regeneration process). But thanks for the %. </div> <div class="bbCodeBlock-expandLink js-expandLink"><a role="button" tabindex="0">Click to expand...</a></div> </div> </blockquote>Different cars / weights/ engines, different consumption.<br /> In truth a lighter than my Viano might take more fuel, or run the regen longer to achieve the incineration required.</div>
 
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