Carsdoft 7.4 mercedes

[corland]

hello that errors from the engine and transmission(enter autocom in the exchange?) ? the swirl you should remove them from the map to eliminate the loss of power (according to me), I can't help you I've never done it.
the exchange should have need of a change of a dry ( every 60000 km), if you have any error can be or that should be replaced on a socket.
cos? not ? simple without knowing a minimum of things, if you can by a p? values.

no error motor exchange. Maintenance and washes exchange facts with regularity... but nothing do with my problem. .

[isfedale82]

no error motor exchange. Maintenance and washes exchange facts with regularity... but nothing do with my problem. .

are you hoping? you can resolve this as soon as possible....good luck

[corland]

are you hoping? you can resolve this as soon as possible....good luck

thanks

[isfedale82]

thanks

If you were sardinian we would have seen with the star...cos? you would have removed the doubts on the injectors etc....

[corland]

If you were sardinian we would have seen with the star...cos? you would have removed the doubts on the injectors etc....

unfortunately, no

[Sirlancillotto]

the problem is simple !!! removed the swirl and the egr... all perfect. but the loss of performance and fuel consumption is high. Especially under the regime full of the turbine, where the well-known smoke and a drop in performance. I believe that you disable the swirl mechanically and not by the map has helped.. but before acting on the rail pressure and the torque limiters I wanted to be sure not to have any injector out-of-phase. Hard to say... and go in a mercedes would do little seen, which do not provide for this type of changes, and their quote for the repair was around 1800 euro.... unthinkable !!

the ecu is a edc16. and the medium has the nag5... then before each change I wanted to study at the bottom of the pattern and figure out how to change every particular, without going to trial... the thing that I hate to do a priori, without a minimum of theoretical certainties!!!!

unfortunately, I have asked several times to the opinion of someone who has more experience... but no one wanted to ever share your opinion ! so look.. in the meantime I have made over 10000 km, and everything is stable. Even I noticed that it consumes less taking the engine above 2000 rpm. And the computer board obviously takes the butterflies.. even indicates consumption of close to 20 per litre when I don't I get even with the wind at your back above the 13.... an exaggeration !!! at the best of times, I was always next to the 16..

Hello corland,

I have a W203 2.7 CDI 2001 and are 272.000 Km....
I too have the same problem with the multiplex car soft 7.4 reading to me from all the units, except that of the motor....

With regard to the increase of the consumption ? perfectly normal if you've changed the swirl removing it out of the way, as the cos? doing, you have changed the torque curve deteriorandola strongly at low revs..... As far as I know the problems of the collectors of these machines, when you reach Kilometraggi high, they can not solve, as many do, by removing the swirl, worth a strong decrease in performance at low revs and a strong increase in consumption.....

I do not think then that map to close them may be a better solution, why?, in that case, you'd have a significant loss of power at high engine speeds.....

What? the problem that you dannno the swirl? Oil is leaking or what?

[Sirlancillotto]

However, keep in mind that today, you can find collectors new competition around 250 euro, with the replacement of the actuator pierburg you're around 370-400 euro of materials, if you have the patience to let you work on your own ? spending more? that honest and the machine returns new....

[corland]

However, keep in mind that today, you can find collectors new competition around 250 euro, with the replacement of the actuator pierburg you're around 370-400 euro of materials, if you have the patience to let you work on your own ? spending more? that honest and the machine returns new....

I know how much the material, but I discarded the idea, just for that reason. More forward collaudero' a system that I built to restrict the air at low engine speeds and we'll see what happens...

[Sirlancillotto]

Surely any intervention, to be effective must act just on the conduits, in this case, it's not just the electronics to achieve an optimal result....

To read the CDI unit, instead of how you fixed it? I am interested as before to spend money on the things I would like to have confirmation from someone who has already? resolved....

[corland]

Surely any intervention, to be effective must act just on the conduits, in this case, it's not just the electronics to achieve an optimal result....

To read the CDI unit, instead of how you fixed it? I am interested as before to spend money on the things I would like to have confirmation from someone who has already? resolved....

use other types of diagnosis. but sessuna makes me see the autocorrezioni on the injectors