2007 e90 330d - partical filter warning

[Direar]

hiya all after some help, my 330d has the warning popping up now partical filter is that the dpf?.

so ive messaged a few places to remove the dpf but not many do it ( cornwall ).

some have mentioned just the software removal of the dpf....will it not still get blocked up?.

only one place has said theyd remove the internals of the dpf and map it out.

also is it worth me doing the dpf removal, swirl flaps delete and egr blank with a remap??

thanks for any advice.

[helix402]

The DPF is blocked due to another problem. Most common one is thermostats. It can be cleaned by a forced regen or removed and chemically cleaned.

Afraid I have no advice on DPF deletes. If you choose to fix the DPF issue be aware that a lot at mechanics have no idea how to fix blocked BMW dpfs and just like to remove or replace them and leave the original fault still present.

[BFleming]

Good advice from Helix.
There are some set conditions that the DPF needs to regen, like temperature, engine speed, no key fault codes present.
Removing a DPF is not legal, hence there are not so many places that will do it. It would also be an MOT failure, and testers are more clued up on it nowadays than previously.
Find someone to read your codes, & get some running parameters, which will tell you the cause, and hopefully lead you to the solution.
What year is the car?

[Direar]

BFleming said:

Good advice from Helix.
There are some set conditions that the DPF needs to regen, like temperature, engine speed, no key fault codes present.
Removing a DPF is not legal, hence there are not so many places that will do it. It would also be an MOT failure, and testers are more clued up on it nowadays than previously.
Find someone to read your codes, & get some running parameters, which will tell you the cause, and hopefully lead you to the solution.
What year is the car?

i was led to believe if you remove the insides of a dpf an mot tester wont know?? its a 2007

[Direar]

so when a company says they can do the software for the dpf...does that mean it needs removing still or it just stops the dpf functioning?

[BFleming]

Direar said:

BFleming said:

Good advice from Helix.
There are some set conditions that the DPF needs to regen, like temperature, engine speed, no key fault codes present.
Removing a DPF is not legal, hence there are not so many places that will do it. It would also be an MOT failure, and testers are more clued up on it nowadays than previously.
Find someone to read your codes, & get some running parameters, which will tell you the cause, and hopefully lead you to the solution.
What year is the car?

i was led to believe if you remove the insides of a dpf an mot tester wont know?? its a 2007

If there is the slightest puff of smoke, they'll know. They will also know if they see a weld mark on the DPF casing.
On your car, the DPF is in the same enclosure as the catalytic converter (oxidisation cat in reality as it's a Diesel) so the combined unit needs to be removed, cut in half, DPF gutted, rewelded - which leaves a huge weld mark, no matter how well done.
There are places that clean them, but it'll happen again unless you find the root cause about why the car isn't regenerating (which is going to be a lot cheaper than gutting it / buying a new one). On the M57 engine there are 2 thermostats, both of which can fail (and do, often) meaning the car doesn't get up to temperature and won't regen.

Direar said:

so when a company says they can do the software for the dpf...does that mean it needs removing still or it just stops the dpf functioning?

I assume that to mean software to remove the DPF from the computer, the physical DPF would still need removing, as the exhaust gases still have to pass through it. There is no magic by-pass of the exhaust, apart from a blown turbo when the DPF gets so full & the exhaust gases have nowhere else to go.

[Monty Python]

Give it an Italian tune-up.