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BMW 3-Series (E90 E92) Forum
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Reducing smoke on a 330D
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09-08-2018, 03:50 PM | #23 | |
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09-08-2018, 04:27 PM | #24 |
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I have a bluefin remap on my 325d lci and the soot levels raise no higher than before I had the remap. The regenerations are at the same frequency too. The bluefin is supposed to increase power from 197 to 250 bhp and torque from 400 to 520Nm. So a decent power increase but no detrimental effect on DPF.
I use the Carley app to monitor my spot levels and regens. |
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09-09-2018, 12:10 AM | #25 | |
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09-09-2018, 06:07 AM | #26 |
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Dpf's are complete pita but i'd still rather have one than be belching out smoke. My 2006 330d on 130k miles. Emapped 30k miles ago. Kept the dpf but resolved all the faults. Because of the 2x20mile trips i normally only do per week, the dpf gets blocked easily...also seems to be more often since i deflapped it (but at least theres no more kak dribbling down the inlet side of the engine block). I have to take it for a long run and then clear the errors so it can do an active regen. I cant quite seem to get my exhaust gas temps continuously over 240c even driving at mway speeds with electrical consumers on so it doesnt do a passive slow oxidation. But did 340 miles mway trip yday...got it to do an active regen...now idling happily at 7mb exhaust back pressure..oh and 52mpg
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09-09-2018, 06:17 AM | #27 | |
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09-09-2018, 06:24 AM | #28 | |
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09-09-2018, 08:39 AM | #29 |
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MrSweet1991, i used to only do reasonably long trips in this car but when i changed to short trips the dpf started erroring.
I figured out that it was not active regening but due to the previously long trips it never caused an issue as it was still passively slow oxidising. I renewed thermostats, exhaust gas temp sensors, glow plugs. Got a c110 scanner to monitor and clear errors. Got it active regening again, but now have deflapped and it seems to definately block the dpf sooner. As soon as the ecu logs the 480a error for partial dpf block it will not active regen. I can't force a regen with the c110, only clear codes logged. Thus the ecu will not even try to active regen for the max driving profile of around 250miles as clearing the codes dummies the ecu to believe there is no need for a regen...yet as soon as it generates a code...it will not regen. A bit of error loop in the dpf regen cycles program logic me thinks |
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09-09-2018, 03:34 PM | #30 |
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Well this may break the internet but i use my diesel for mostly a 4 mile commute ..... and the DPF is fine and its remapped to 290bhp and deflapped,
its an N57 if it makes a difference i use it for longer runs but nothing huge |
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09-09-2018, 07:06 PM | #31 | |
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09-09-2018, 07:10 PM | #32 | |
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So anyway, do you monitor anything like soot level and exhaust temperatures.. its just interesting to compare but this is quite interesting as it seems the remap and DPF work quite well which reinforces what Jason at BWChiptune has been saying. Also, how long have you had the remap? |
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09-10-2018, 03:50 AM | #33 | |
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i don't monitor but probably can do, i have 510 reader. for example last night i did a 20mile round trip to the train station ect, id say i do a trip about that range once a week? but monday to friday its the 3 mile commute once or twice a day and i don't baby it, my overall average is 37mpg at the minute but thats purely due to short trips.(and me booting it) on longer trips its into the 40's easily. (trip to france ) i was recently getting some swirl flap codes intermittently so remove them (newer round ball shape ones on the N57) and cleaned the intake. i got about 1/3rd a cup of soot out of the intake, i was expecting alot mote tbh and it was actually fairly clean. number 6 was probably the worst and that was because it sees the most oil from the breather. but at 80k miles i expect that if not alot worse on a diesel. remap was in FEB about 7k miles ago, it was a custom one. i think coolant temp plays a major role in them, i do check the hidden menu now and again and check for codes regularly. maybe i'm just lucky? my EGR is still fully functional, that aids with regens so i'm told. what do you want me to look at, MB at idle? |
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09-10-2018, 06:00 AM | #34 | |
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I rekon the n57 engines have been designed with dpfs in mind so work much better with short trips. But diesel is diesel...my wifes seat leon fr with 184ps ...after 1 week of short trips, its constantly trying to regen...the fan sounding like a jet plane on take off even when engine stopped |
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09-11-2018, 07:25 AM | #35 | |
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Last edited by nick46; 09-11-2018 at 08:16 AM.. |
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09-15-2018, 02:50 PM | #36 |
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Update - Replacement used DPF has arrived. Should be fitted this week, not sure if I should do anything to it before fitting as obviously internally I don't know the condition.
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09-16-2018, 02:11 AM | #37 |
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10-02-2018, 08:00 AM | #39 |
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Glad you got it sorted. Not much to figure out though, as long as you don't have any faults to prevent a regen just take it for a decent drive every now and again and it'll be fine.
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10-02-2018, 08:21 AM | #40 |
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Only the physical element of the DPF is done, mine had been mapped out so regen's won't happen. Might speak to BWChipTune about having it done although I will need a new main thermostat as well.
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10-02-2018, 09:27 AM | #41 |
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Ah I see!
Yeah Jason at BWchiptune will definitely be able to sort that for you while still maintaining really good power. Be sure to keep us updated on how you get on. |
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10-07-2018, 03:09 AM | #42 |
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Didn't read everything you guys wrote here but... my car has no DPF (pre LCI) and smoked like a chimney when I bought it. But after I cleaned out the manifold and did the EGR delete the soot level went down by like 95%. Only a tiny puff when reved while parked in neutral. A bit more when floored while being driven but nowhere near what it used to be.
So I'm just thinking isn't an EGR delete good for keeping the DPFs from clogging? |
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10-07-2018, 04:09 AM | #43 |
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Mines mapped and de-dpf’d. It smokes a bit when I floor it but not when driving normally. My mates 2005 530d was having all sorts of running issues until he had the blocked dpf gutted and mapped out. It then smoked like a chimney just about all the time so last weekend I removed his EGR which was pretty clogged up with soot and the valve seemed seized. We free’d up the valve and cleaned it out with carb n choke cleaner and now it an awful lot better, just a bit of smoke when he floors it as expected but not when driving it normally.
Check your EGR’s guys. Last edited by nomiS330d; 10-07-2018 at 04:14 AM.. Reason: Add content |
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10-07-2018, 04:25 AM | #44 |
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My EGR is clean as a whistle, although I'm sure my inlet manifold is in a terrible state. The issue is if you read the MOT test details the car is revved high and that's when the smoke occurs. I guess for many people it will be how strict the MOT tester is.
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