CLS 320cdi 2006 Power loss & No turbo boost (wid new turbo)
Discussion
Hi everyone,
I own Mercedes CLS 2006 320 cdi. The car has covered 125k miles and its been properly maintained with quality service used parts.
The initial problem started last week as the car started whistling noise and i felt power loss plz check youtube video here if you like
https://www.youtube.com/timedtext_video?v=WlIVxY3d...
Since this video has been made i have replaced a remanufactured turbo it drove fine for about 20 miles but smoked a few times and i could hear some sort of grinding noise and jerky gear change but no engine warning light or error message till today Engine Management light popped up.
So I took the car to my mechanic and checked on his diagnostic machine and there were quite a few which popped up, but the most relevant was - CODE 2511 (Check component Y27/9 (Left EGR Positioner) Positioner signals fault -
SO he deleted the codes and told me to go for a test drive ... I did for 2/3 miles it drove fine with good turbo boost (some smoke too) but then same power loss and no turbo boost. So he opened the EGR valve and cleaned it and told me to go for Test drive and after a few miles same problem and SAME error CODE 2511.
Now there is no Engine management light on I have power loss (no turbo) and irrespective of how far I press down the accelerator and doesnt rev more than 30 rpm when in N / P but No warning light. Once you stop, turn the engine off for a little while and restart the problem goes away but comes back after car has warmed up some time later.
I would really appreciate if someone can help me with this or put me in the right direction.
My location is Manchester UK.
I own Mercedes CLS 2006 320 cdi. The car has covered 125k miles and its been properly maintained with quality service used parts.
The initial problem started last week as the car started whistling noise and i felt power loss plz check youtube video here if you like
https://www.youtube.com/timedtext_video?v=WlIVxY3d...
Since this video has been made i have replaced a remanufactured turbo it drove fine for about 20 miles but smoked a few times and i could hear some sort of grinding noise and jerky gear change but no engine warning light or error message till today Engine Management light popped up.
So I took the car to my mechanic and checked on his diagnostic machine and there were quite a few which popped up, but the most relevant was - CODE 2511 (Check component Y27/9 (Left EGR Positioner) Positioner signals fault -
SO he deleted the codes and told me to go for a test drive ... I did for 2/3 miles it drove fine with good turbo boost (some smoke too) but then same power loss and no turbo boost. So he opened the EGR valve and cleaned it and told me to go for Test drive and after a few miles same problem and SAME error CODE 2511.
Now there is no Engine management light on I have power loss (no turbo) and irrespective of how far I press down the accelerator and doesnt rev more than 30 rpm when in N / P but No warning light. Once you stop, turn the engine off for a little while and restart the problem goes away but comes back after car has warmed up some time later.
I would really appreciate if someone can help me with this or put me in the right direction.
My location is Manchester UK.
My 2006 CLS (123k miles) very occasionally (perhaps twice a year) exhibits the flat, no acceleration fault (although it can be made to accelerate by changing down manually) which, like your car, disappears when turned off and on. I just live with it, given how infrequently it occurs, but research suggests it may be caused by the exhaust back pressure sensor - I will swap it over one day as it is pretty inexpensive.
The inlet port shut down motor also dies on these engines as it lives beneath a poor oil seal in the inlet tract that drips oil on it, which produces similar "flat" performance but the code this produces is pretty distinctive (although escapes me now) and from memory the description doesn't tally with the ones you gave given.
Early OM642 engines had problems with exhaust manifolds breaking up internally and destroying the turbo. I had the exhaust manifolds changed as a precaution - did the removed turbo show any damage internally that could be due to this? If so, and the manifolds are steadily breaking up, you could have damaged the new one.
As the previous poster said, are you sure it is the correct turbo? Was the actuator changed as well - these need to be programmed to suit the turbo.
We also run a2009 E320 CDI - this whistled when my wife's steady driving allowed the vanes to clog up - on the advice of the MB mobile technician, turbo cleaner and an Italian tune up cured that.
It could be your car has a few issues, so I'm afraid it is a process of elimination. I suggest getting it on a Star machine for diagnosis as generic code readers don't necessarily pinpoint the problem.
The inlet port shut down motor also dies on these engines as it lives beneath a poor oil seal in the inlet tract that drips oil on it, which produces similar "flat" performance but the code this produces is pretty distinctive (although escapes me now) and from memory the description doesn't tally with the ones you gave given.
Early OM642 engines had problems with exhaust manifolds breaking up internally and destroying the turbo. I had the exhaust manifolds changed as a precaution - did the removed turbo show any damage internally that could be due to this? If so, and the manifolds are steadily breaking up, you could have damaged the new one.
As the previous poster said, are you sure it is the correct turbo? Was the actuator changed as well - these need to be programmed to suit the turbo.
We also run a2009 E320 CDI - this whistled when my wife's steady driving allowed the vanes to clog up - on the advice of the MB mobile technician, turbo cleaner and an Italian tune up cured that.
It could be your car has a few issues, so I'm afraid it is a process of elimination. I suggest getting it on a Star machine for diagnosis as generic code readers don't necessarily pinpoint the problem.
ZX10R NIN said:
Are you sure your DPF Filter isn't blocked also was it the correct turbo you had fitted?
Hi mate thank you for your help ... i am sure the correct turbo is fitted but i dont know if the DPF filter is blocked or not ...i have booked the car tmrw for Diagnostics and i will find out hopefully what is causing the issue ...Stegel said:
My 2006 CLS (123k miles) very occasionally (perhaps twice a year) exhibits the flat, no acceleration fault (although it can be made to accelerate by changing down manually) which, like your car, disappears when turned off and on. I just live with it, given how infrequently it occurs, but research suggests it may be caused by the exhaust back pressure sensor - I will swap it over one day as it is pretty inexpensive.
The inlet port shut down motor also dies on these engines as it lives beneath a poor oil seal in the inlet tract that drips oil on it, which produces similar "flat" performance but the code this produces is pretty distinctive (although escapes me now) and from memory the description doesn't tally with the ones you gave given.
Early OM642 engines had problems with exhaust manifolds breaking up internally and destroying the turbo. I had the exhaust manifolds changed as a precaution - did the removed turbo show any damage internally that could be due to this? If so, and the manifolds are steadily breaking up, you could have damaged the new one.
As the previous poster said, are you sure it is the correct turbo? Was the actuator changed as well - these need to be programmed to suit the turbo.
We also run a2009 E320 CDI - this whistled when my wife's steady driving allowed the vanes to clog up - on the advice of the MB mobile technician, turbo cleaner and an Italian tune up cured that.
It could be your car has a few issues, so I'm afraid it is a process of elimination. I suggest getting it on a Star machine for diagnosis as generic code readers don't necessarily pinpoint the problem.
Thank you mate for your detailed responce i really appreciate that ...but i have booked the car tmrw with the mechanic and hopefully will find out tmrwThe inlet port shut down motor also dies on these engines as it lives beneath a poor oil seal in the inlet tract that drips oil on it, which produces similar "flat" performance but the code this produces is pretty distinctive (although escapes me now) and from memory the description doesn't tally with the ones you gave given.
Early OM642 engines had problems with exhaust manifolds breaking up internally and destroying the turbo. I had the exhaust manifolds changed as a precaution - did the removed turbo show any damage internally that could be due to this? If so, and the manifolds are steadily breaking up, you could have damaged the new one.
As the previous poster said, are you sure it is the correct turbo? Was the actuator changed as well - these need to be programmed to suit the turbo.
We also run a2009 E320 CDI - this whistled when my wife's steady driving allowed the vanes to clog up - on the advice of the MB mobile technician, turbo cleaner and an Italian tune up cured that.
It could be your car has a few issues, so I'm afraid it is a process of elimination. I suggest getting it on a Star machine for diagnosis as generic code readers don't necessarily pinpoint the problem.
tobinen said:
MB Tech Warrington have a decent reputation. Give them a call. You can guess all you like until the cows come home, but you need someone with STAR who knows what they're doing.
Hi thanks i have booked in Oldham tmw and hopefully they will have some answers for me.cheers mate
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