530dA 2005 - Weird powerloss at certain speed / RPM
#1
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Hey there,
Just noticed a weird thing yesterday on my 530dA. When hitting the floor @ 90km/h, everything is fine like it used to be, until it reaches around 125km/h / 3500 RPM. At this point, there's huge powerloss and it goes really slowly up after that.
Checked around on the forums and there have been similar cases, but not very identical it seems. Doesn't look like a turbo failure, because on lower speeds etc, the acceleration is all fine. Also acceleration at 90km/h & above it's fine, until it reaches that certain speed. Getting it to the dealers tomorrow, for diagnostics etc. Just wanted to hear 2nd opinion, before going there :-)
Thanks in advance!
Just noticed a weird thing yesterday on my 530dA. When hitting the floor @ 90km/h, everything is fine like it used to be, until it reaches around 125km/h / 3500 RPM. At this point, there's huge powerloss and it goes really slowly up after that.
Checked around on the forums and there have been similar cases, but not very identical it seems. Doesn't look like a turbo failure, because on lower speeds etc, the acceleration is all fine. Also acceleration at 90km/h & above it's fine, until it reaches that certain speed. Getting it to the dealers tomorrow, for diagnostics etc. Just wanted to hear 2nd opinion, before going there :-)
Thanks in advance!
#2
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My Ride: Bmw 530d 2004
My vote goes for a clogged diesel particulate filter (DPF).
A clogged DPF can be showed up via different symptoms, and this is one of them. When the DPF is clogged the backpressure after the turbo increases. It will affect the the turbo and the acceleration.
You can read more about the clogged DPF here: http://forums.5series.net/topic/94725...1#entry1120691
- Antti -
A clogged DPF can be showed up via different symptoms, and this is one of them. When the DPF is clogged the backpressure after the turbo increases. It will affect the the turbo and the acceleration.
You can read more about the clogged DPF here: http://forums.5series.net/topic/94725...1#entry1120691
- Antti -
#3
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My vote goes for a clogged diesel particulate filter (DPF).
A clogged DPF can be showed up via different symptoms, and this is one of them. When the DPF is clogged the backpressure after the turbo increases. It will affect the the turbo and the acceleration.
You can read more about the clogged DPF here: http://forums.5series.net/topic/94725...1#entry1120691
- Antti -
A clogged DPF can be showed up via different symptoms, and this is one of them. When the DPF is clogged the backpressure after the turbo increases. It will affect the the turbo and the acceleration.
You can read more about the clogged DPF here: http://forums.5series.net/topic/94725...1#entry1120691
- Antti -
Also checked the pressures, after that. All looked fine..
But gonna get it checked again tomorrow, definetly. Thanks for the input!
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My Ride: E60 530d
http://www.scoopz.com/m5board/E60_Hi...structions.pdf
#6
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My Ride: F07 GT 535D M Sport & E60 530D M Sport
Its the DPF, might need to be regenerated, Cleard out. Take the car for a run, get it up to tempreture, then find a nice road and rag the shit out of the car, this should clear the dpf valve, if it dont then your looking at a new one,,,,,,,,,Just delite it and have it coded out
#7
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I noticed this problem after having a 150km motorway trip the day before. I think it should have regenerated properly then.
The car warms up nicely to 90C, both thermostats have been replaced months ago aswell.
Will find out tomorrow @ the dealers..
The car warms up nicely to 90C, both thermostats have been replaced months ago aswell.
Will find out tomorrow @ the dealers..
#10
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No idea.. all the sensors of DPF are working fine, car also reaches the correct temp. I got swirlflaps removed year ago, but that's not the issue I guess?
About 3 months ago I had DPF temp sensor replaced. I guess until that time, it was not regenerating properly? And maybe there was too much soot already, to regenerate itself?
Just guessing..
About 3 months ago I had DPF temp sensor replaced. I guess until that time, it was not regenerating properly? And maybe there was too much soot already, to regenerate itself?
Just guessing..
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