BMW X5 e53 3.0 - Black Smoke During Acceleration: Potential Causes & Solutions

Welcome to bmw x5 recently. 3.0 I noticed black smoke accelerating if someone could help me what it means before I go to the mechanic

Moderated By T5:

3.1.15. Do not ask immediately in the forum, if you have not checked anything yourself or attempted self-diagnosis. Remember that advice is given remotely in the absence of physical access to the device, the problem must be very well described and understood by users, and the title should include the brand, model and brief description of the fault.

Where does this black smoke come from? From the exhaust? Maybe from the wind? Or somewhere under the seats smoking?
Write a little more about your ailment, because of the coffee grounds nobody bodes here.
Since it happens, on a cold or hot engine, etc. Details!

For some weeks, black smoke has been coming out of the exhaust pipe, this only happens with reduction and sharp acceleration

Hello col and the air filter is the col when he was replacing because that could be it.

I would start with Egr. But I recommend you get a mechanic to connect to your computer because it could be several other reasons.

Hello ,
I'm temporarily out of stock,
Air filter replaced, colleague connected his computer and said the turbo flap does not close and now the question is is it repairable or do you need to replace the entire turbo? - recently in the wife of a car a mechanic tried to stretch me for repairs that the car did not require, so before I go to the mechanic I would like to make sure.
Thank you in advance for your answer

Bleed valve. Maybe all you have to do is clean up some crap. You should reach it but it will be a bit of a mess.

I have exactly the same problem. More details below:
- BMW x5 e53 disel 2003
- mileage 160k

- Black smoke in large quantities escapes from the exhaust pipes when I press the accelerator pedal abruptly and flies all the time when the engine is under load (acceleration or downshifting)
- the car has a combustion indicator and normally indicates combustion lower than 10l, as soon as I press the gas pedal enough that the engine has a little load and so that the momentary combustion exceeds 25l, black smoke flies from the exhaust pipes
- I am not writing here about small smokiness. If I press it well, I am able to "produce" a cloud of black smoke that can cover the entire car behind me
- I haven't connected to a computer yet. As soon as I hook it up I will let you know what mistakes I have

Any preliminary comments? Can the author of the main post share his comments or did you solve the problem? And what was the reason for this smoke?

Added after 14 [hours] 14 [minutes]:

This only happens when reducing and sharp acceleration for about 2 or 3 seconds and then the exhaust gas is without this black smoke.

Snajper_now wrote:

This only happens when reducing and sharp accelerating for about 2 or 3 seconds

Well, the ignition angle, the dose of fuel,?

Hello turbinke you can always undress. If it sticks in the upper and lower range, then there is probably a deposit.
It is possible that the injectors give up or the fuel pump.
Black smoke appears even in normal diesel when the engine has a heavy load to handle in relation to the moment of rotation.

If the quality of the fuel is poor, so also happens with smoke.
And disassembly turbo a little fun with pulling in bmw is but the rest is the same as in any other.