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      08-25-2010, 11:47 AM   #1
grainger_daniel
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Diesel Particulate Filter - Help!

Having had the EGR valve replaced and something like the solenoids done aswell, the DPF have now gone, BMW quote the cost of the part is 1200.....

I have been told that this can be bypassed with either removing the filter and replacing with a part from ecotune up in scotland, part 350, software update 500 !! This includes a full remap, which I don't want as it already has one.

Does anyone know of any alternatives, ie potential of cleaning existing filter? Basically i think the nossle that squirts the liquid into the filter to induce regeneration is blocked as it won't regenerate on its own.

Any advice on the matter would be good as im looking at a hefty bill.
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      08-25-2010, 03:32 PM   #2
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Owch I'm watching this with interest... DPFs are the work of the devil.
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      09-06-2010, 06:50 PM   #3
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Nobody commented on this?
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      09-07-2010, 05:40 PM   #4
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My DPF filter gone as well. A local mechanic is going to remove it and then hollow it out. Evolve are then going to do the software.
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      09-08-2010, 01:16 AM   #5
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Mine failed and was replaced under warranty. They are supposed to last 100,000 miles anyway aren't they?

Should see some much better performance from diesels without them though.
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      09-08-2010, 01:30 AM   #6
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Quote:
Originally Posted by willhollin View Post
Mine failed and was replaced under warranty. They are supposed to last 100,000 miles anyway aren't they?

Should see some much better performance from diesels without them though.
And also alot more smoke!
I had a DPF delete done on my previous car....
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      09-08-2010, 03:00 AM   #7
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We are seeing this more often now even on standard cars with reasonable mileage (50k miles).

If anyone has an evolve remap already and want DPF delete software please get in touch and we will sort out a special price for you. We are also working on getting the hardware (DPF delete pipes) made required.

The smoke is no more than a tuned BMW diesel that doesn't come with a DPF from the factory ie you get some under full load.
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      09-08-2010, 10:25 AM   #8
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The DPF's can cause issues on all diesels, the VAG group in particular.

We are currently developing a DPF delete for the BMW race cars we tune for the Dunlop Maxx race series.

Not only are the usual issues related with the DPF removed, but there will also be more power available for those wanting it
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      09-22-2010, 03:09 AM   #9
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Hi guys.

I'm a new member just trying to find some info on the 3 series diesels. Do all the 3 series diesels now have DPF's fitted to them?
I have a VW Golf GT 170TDI at the moment with a DPF, and it's a real PITA!! I was looking into changing my car for a 3 series tourer and either the 320D or 325D. Anyone know if the BMW DPF's better than the VAG versions?

Regards
Lee
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      09-22-2010, 04:14 AM   #10
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Hi Lee

The BMW DPF's don't cause anywhere near the issues that were found in the VAG PD models.

Later Common Rail VAG diesels are also much better with regards to the DPF now.
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      09-22-2010, 04:32 AM   #11
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Yep, VAG ones were always going, I used to have a Leon FR and the forum was full of stories. Don't hear much about it on this forum.

Will a car still pass the MOT without a DPF, if it came from factory with one fitted?

From a remap point of view, how do Bimmer DPFs cope?
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      09-22-2010, 09:42 AM   #12
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I too am interested in this.

A few Questions from me too.

If I have a DPF Failure, and wanted it deleted, does that mean I can take it into evolve, have it removed, with these pipes etc. Have it remapped at the same time - and thats it.

If so what is the "average" cost


As mentioned will it pass an MOT without it

Also when you say "some smoke" under full load what are we talking about really?

Also how do you know when your DPF has actually "gone" and needs replacing.






I ask as my car has done over 100k, so would like to know now, so when it does go, I know what to do.
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      09-22-2010, 12:24 PM   #13
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Sorry to hear your problems.

I've just gone from a Golf TDI 170 to my E92 and i had no end of issues with the DPF on it. I was in and out of the garage every few weeks for around 3 months.

Various warning lights and eventually went into limp mode, they claimed that they wouldn't be able to force a recharge but 'somehow' did and soon after I sold it.

I dont think I've ever heard any good things about these damn things tbh.

How many miles has your car done - any case for arguing that its unreasonable to fail?
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      09-23-2010, 09:25 AM   #14
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Quote:
Originally Posted by craig2859 View Post
I too am interested in this.

A few Questions from me too.

If I have a DPF Failure, and wanted it deleted, does that mean I can take it into evolve, have it removed, with these pipes etc. Have it remapped at the same time - and thats it.

If so what is the "average" cost


As mentioned will it pass an MOT without it

Also when you say "some smoke" under full load what are we talking about really?

Also how do you know when your DPF has actually "gone" and needs replacing.

I ask as my car has done over 100k, so would like to know now, so when it does go, I know what to do.
To remove the DPF - a DPF delete pipe and DPF delete specific remap software. Cost would be in the region of 800 depending on exact model. If you didn't want the performance remap and just the software so the car could run properly without the DPF in place it would be 550.

It will pass MOT as the DPF is not a requirement.

Difficult to describe - the same as you would get on a non DPF car running a powerful remap.

When the DPF clogs up the car feels unresponsive - feels like it is not boosting.
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      09-23-2010, 12:52 PM   #15
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I had a 530 D m sport in work with a blocked particulate filter, removed it, and gave it a hot pressure wash...took a while but I got it completely unblocked and the car was fine afterwards was WELL worth a go after BMW's prices !
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      09-23-2010, 01:28 PM   #16
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Quote:
Originally Posted by DavS1 View Post
I had a 530 D m sport in work with a blocked particulate filter, removed it, and gave it a hot pressure wash...took a while but I got it completely unblocked and the car was fine afterwards was WELL worth a go after BMW's prices !
Really? I always thought the DPF was that
massive thing that was after the manifold and on way down to the cat!
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      09-23-2010, 04:35 PM   #17
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Cheers Imran, 800 with a performance map is very good indeed.

I will bear it mind if I need it in the future
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      09-24-2010, 07:55 AM   #18
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Quote:
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Really? I always thought the DPF was that
massive thing that was after the manifold and on way down to the cat!

I dont know about 3 series as this was a 530d, but the one on the downpipe after the manifold on that car was the cat (which i''m prob sure is the same on the 3) and the 2nd one was the DPF.

once removed could get into either end with the steam cleaner no prob
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      09-25-2010, 10:35 AM   #19
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Quote:
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Sorry to hear your problems.

I've just gone from a Golf TDI 170 to my E92 and i had no end of issues with the DPF on it. I was in and out of the garage every few weeks for around 3 months.

Various warning lights and eventually went into limp mode, they claimed that they wouldn't be able to force a recharge but 'somehow' did and soon after I sold it.

I dont think I've ever heard any good things about these damn things tbh.

How many miles has your car done - any case for arguing that its unreasonable to fail?
Mine's only got 39K at the moment, but I'm the 2nd owner. I've only actually had 1 issue with it, which a local VW specialist managed to burn it off? Also had a faulty EGT sensor replaced at the same time.
My brother also has the Leon FR and he has had a couple of problems with his.

TBH, I'm not even sure it's worth getting a diesel now, as I will probably only clock up around 40-50 miles a week.

Back to the drawing board.......
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      09-25-2010, 10:58 AM   #20
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interesting thread, although don't fully understand..

what is a DPF and what does it do?
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      09-25-2010, 11:08 AM   #21
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interesting thread, although don't fully understand..

what is a DPF and what does it do?
DPF = Diesel Particulate Filter

A diesel particulate filter, sometimes called a DPF, is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow diesel particulate filters usually remove 85% or more of the soot, and can at times (heavily loaded condition) attain soot removal efficiencies of close to 100%. A diesel-powered vehicle equipped with functioning filter will emit no visible smoke from its exhaust pipe.

In addition to collecting the particulate, a method must exist to clean the filter. Some filters are single-use (disposable), while others are designed to burn off the accumulated particulate, either through the use of a catalyst (passive), or through an active technology, such as a fuel burner which heats the filter to soot combustion temperatures, through engine modifications (the engine is set to run a certain specific way when the filter load reaches a pre-determined level, either to heat the exhaust gases, or to produce high amounts of NO2, which will oxidize the particulates at relatively low temperatures), or through other methods. This is known as "filter regeneration". Sulfur in the fuel interferes with many "regeneration" strategies, so almost all jurisdictions that are interested in the reduction of particulate emissions, are also passing regulations governing fuel sulfur levels.

Or were you just being sarcastic... :P
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      09-25-2010, 12:18 PM   #22
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Or were you just being sarcastic... :P
hah! no, thanks for the info
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