[SOLVED] X5 E53 2006 Injector Issues

[raydhimitri]

Hi,

I have a strange issue with my x5 e53 2006 3.0d. Recently i have done few repairs on my e53.

1. replaced all glow plugs + the module (brand new)
2. replaced Turbo Boost Pressure Solenoid Converter EGR Valve (brand ne)
3. replaced 3 other injectors becouse they were showing high values on BMW ISTA D (3.5 or even 4.0 (maximum allowed)
4. partially fixed the turbocharger and reprogrammed turbo module
edit:
5. disabled DPF via ECU

After all this fixes the car was ok for a while when suddenly i was feeling again a little bit of power loss and i thought it was the turbocharger again.
After visiting the shop they scanned the codes and they noticed

004B11 DDE: Regolatore silenziiosita
004B10 DDE: Regolatore silenziiosita

Here are the screenshots:

1. https://i.imgur.com/Qn57NdR.png
2. https://i.imgur.com/QFHHXUY.jpeg

Any help or suggestions what do i check next?

PS: car runs fine no idle issues

[andrewwynn]

Does your model have a vacuum accumulator or similar? Several cases on xoutpost when diesel gets winded especially say going up a long hill and power fades, it was a leak in the tank that I think somehow controls the turbo boost. I don't work on diesel I don't remember the details but you can maybe find the thread on xo it was probably in the e53 section

[raydhimitri]

Hello @andrewwynn,
No this version of e53 does not have the vacum accumulator becouse the turbocharger is electrically controlled..

[wpoll]

Originally Posted by raydhimitri

Hello @andrewwynn,
No this version of e53 does not have the vacum accumulator becouse the turbocharger is electrically controlled..

That statement makes no sense in the light of your second repair listed above: -

Originally Posted by raydhimitri

2. replaced Turbo Boost Pressure Solenoid Converter EGR Valve (brand new)

What the heck is a "Turbo Boost Pressure Solenoid Converter EGR Valve"? Is it the EGR valve (item 2C below) or the Turbo Boost Pressure Solenoid Converter (item 1C below)?



If you disabled the EGR in the DDE (ECU) I don't get why you would replace the vavle controlling it.

The M57TU normally uses a Turbo Boost Pressure Solenoid Converter that is an electrically controlled pneumatic device - so it needs a source of vacuum.

I didn't think the electrically controlled Garrett GT2260V turbo was ever fitted to an M57TU (in an E53) - only the M57TU2 in the E70 (from 2007) but I guess it's possible a late 2006 might have had it. Would mean you would have a DDE 6.0 rather that the DDE 5.0 as fitted to most LCI E53 though.

Assuming you are mistaken and your turbo boost IS vacuum controlled, Andrew is dead on - check the vacuum accumulator - #1 below - and all the lines running to it.

[Clavurion]

E53 3.0d facelift with M57N engine has two versions. EU3 without DPF has vacuum actuated turbo, EU4 with DPF has electric servo actuated turbo. (Otherwise the same GT2260V.) (Same thing was on early E6x 530d.)

That trouble code for smooth running controller means that correctional value on some injector has been over the accepted tolerance. Though those present values are still within specs. This code has no direct correlation to any possible power problems.

[wpoll]

Originally Posted by Clavurion

E53 3.0d facelift with M57N engine has two versions. EU3 without DPF has vacuum actuated turbo, EU4 with DPF has electric servo actuated turbo. (Otherwise the same GT2260V.) (Same thing was on early E6x 530d.)

That trouble code for smooth running controller means that correctional value on some injector has been over the accepted tolerance. Though those present values are still within specs. This code has no direct correlation to any possible power problems.

Thanks Clavurion, I figured you'd be along to give us the good answers!But that leaves us with the source of the problem still unknown.

The 4B10/11 codes seem to point to the EGR (in some documents) but smooth running in others...

[raydhimitri]

Originally Posted by Clavurion

E53 3.0d facelift with M57N engine has two versions. EU3 without DPF has vacuum actuated turbo, EU4 with DPF has electric servo actuated turbo. (Otherwise the same GT2260V.) (Same thing was on early E6x 530d.)

That trouble code for smooth running controller means that correctional value on some injector has been over the accepted tolerance. Though those present values are still within specs. This code has no direct correlation to any possible power problems.

exactly, the turbo actuator module was not working properly when the car was warming up. (looks like it is a known issue)

[raydhimitri]

Hello @all ,

im sorry for the confusion and my bad english.
1. I have replaced this part: EGR boost control (https://www.ebay.co.uk/itm/For-BMW-X...-/352237914090)

2. I only turned off the DPF from the car and not the EGR !!! The EGR was cleaned just to make sure there was no dirt in it.

3. YES, my e53 has electric controlled turbo that is not vacum controller like earlier models.

---------

Soooooo finally i took the car again to the turbocharger repair shop and they have replaced the actuator module. it was a known issue for them when i explained again the problem that i had with the the car that it would work fine when starting or when it was cold .... but after a while you would feel low boost etc or poor acceleration after 2nd gear..

Part Link : https://www.ebay.com/itm/Turbo-Elect...cAAOSwyfNetSMr


AND FINALLY my issue is solved for now with no Smooth Running errors , if they appear again well ... it will be time to check other things . (i hope not )

[Clavurion]

Originally Posted by raydhimitri

Hello @all ,

im sorry for the confusion and my bad english.
1. I have replaced this part: EGR boost control (https://www.ebay.co.uk/itm/For-BMW-X...-/352237914090)

2. I only turned off the DPF from the car and not the EGR !!! The EGR was cleaned just to make sure there was no dirt in it.

3. YES, my e53 has electric controlled turbo that is not vacum controller like earlier models.

---------

Soooooo finally i took the car again to the turbocharger repair shop and they have replaced the actuator module. it was a known issue for them when i explained again the problem that i had with the the car that it would work fine when starting or when it was cold .... but after a while you would feel low boost etc or poor acceleration after 2nd gear..

Part Link : https://www.ebay.com/itm/Turbo-Elect...cAAOSwyfNetSMr


AND FINALLY my issue is solved for now with no Smooth Running errors , if they appear again well ... it will be time to check other things . (i hope not )

That's a Chinese copy of the original Hella actuator but great if it works. If your problem was heat related it sounds like typical failed wiring inside actuator from board to motor supply. I had the same on mine a few years ago.

[raydhimitri]

Originally Posted by Clavurion

That's a Chinese copy of the original Hella actuator but great if it works. If your problem was heat related it sounds like typical failed wiring inside actuator from board to motor supply. I had the same on mine a few years ago.

yes that is the module that they replaced. I had a look on the old module but there was no disconnected wire like yours in photo.

They told me this fail often and that not everyone is able to notice the powerloss.
In my case the car had to be warmed up to feel the power loss, and if you would restart the car it would work for another good 30 min or so then again i would feel the power loss .

I must say this issue drove me crazy

But the strange thing is that it was triggering different error codes on the diagnostic device , example: (DDE: Charge-Air Pressure Sensor) . This specific error told me the turbo was not working properly so that’s why i sent my car to them to have a look since they partiay rebuilt that turbo feee weeks ago

Edit : i didn’t asked them if they replaced it with an oem used or a replica of this module. Im glad it works tho