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Turbo boost pressure low, turbo piping diagram needed

Tiny
ANDRIN ATEM
  • MEMBER
  • 2009 BMW X6
  • 3.0L
  • 4WD
  • AUTOMATIC
  • 14,000 MILES
The car drive well no problems, but when I hit my leg hard on the gas pedal, suddenly I get a message "engine power reduced', car wont pull as normal. Code 30ff, but I have also check my air pips, I don't know if I am missing something. I need a DIY turbo piping diagram so I can carefully follow and trace the leak. Please if any other inside on what to check? I also have 30BE injectors implausible, could this also be a reason for loss of engine power?
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Wednesday, February 12th, 2020 AT 12:58 PM

19 Replies

Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey ANDRIN ATEM,

Have you had any of the injectors replaced previously?

The 30BE code is for injector calibration value implausibility, when you replace injectors you have to code in the replacement injectors new calibration value.

You can visually trace the inlet piping from the air filter to the inlet of the turbo and then from the outlet of the turbo around to the inter-cooler. From the inter-cooler there will be a hose running to the intake manifold.

If you check around all of these pipes for signs of oil leakage that will be a good sign that you have a leak there. Also visually check the inter-cooler through the front bumper as it is not uncommon for rocks etc to flick up and damage it.

Hope this helps, let us know if you have any further questions.

Regards, Joe
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Wednesday, February 12th, 2020 AT 5:57 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

Take a look through this. It is a portion of a technical service bulletin related to this code. It indicates possible causes. Let me know if this helps.

Note:
If a defective high pressure fuel pump or additional faults are found in the DME memory (e.G, fuel pressure, crank sensor, cam sensor, knock sensor, etc.), Then those faults will be the primary focus of the diagnosis, using the test plans provided for those faults. FC 3100 and 30FF are only a result of the component fault.

If FC 3100, 30FE, and/or 30FF are the only faults stored in the memory, then those faults must be the primary focus of the troubleshooting. These faults are stored due to a reduction in boost, possibly caused by one of the following items:

Leaks or restrictions in the induction system, loose clamps, cracked pipes or housings

Air path disruption, aftermarket air filter, air filter housing, induction tubes, etc.

An imbalance in turbo charging between cylinder banks one and two

Waste gate valve binding, loose or leaking

Leaks or restrictions in the vacuum control for waste gates, actuators, solenoids, supply hoses, etc.

Inter-cooler leaks due to damage from road debris

Leaks or restrictions in the exhaust system.

Let me know.
Joe
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Wednesday, February 12th, 2020 AT 6:05 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Thanks, I am still checking on the problem. I noticed oil on the pipes also beside the turbo, But I could not really tell where exactly it came from. If I could get a piping diagram, it might help me follow up slowly. Thanks
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Thursday, February 13th, 2020 AT 11:34 AM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey ANDRIN ATEM,

I would also check that the vacuum reservoir for the turbo waste-gate holds vacuum.

If you are only getting a fault under sustained wide open throttle it is highly likely that the vacuum supply to the waste-gate is depleted, the reservoir is there to maintain vacuum under these conditions.

Do you have access to a vacuum pump/mityvac?

Regards, Joe
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Thursday, February 13th, 2020 AT 12:11 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Not really, is it beside the turbo? Am not really sure. I also had thiscode 30fc, but I saw that the housing of the turbo was out of its fitting, after a whole day's struggle I manage to close that.
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Thursday, February 13th, 2020 AT 3:19 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Could this error 30be also be for loss of engine power? I have carried active test and live data, for the active test is only the Injector 2 and 3 responds in activation mode, injector 1 no shaking, injector 4, 5, 6 failed, I could activate nor deactivate.
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Thursday, February 13th, 2020 AT 3:24 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
I don't have just a schematic of piping, but I do have the steps for removal and replacement of the turbos. I will attach for both and hopefully, it will provide the info you are looking for.

All attached pictures will correlate with the directions.

____________________

2009 BMW X6 (E71) L6-3.0L Turbo (N54)
11 65 022 Removing and Installing/Replace Exhaust Turbocharger For Cylinders 1-3
Vehicle Powertrain Management Fuel Delivery and Air Induction Turbocharger Service and Repair Removal and Replacement 11 65 022 Removing and Installing/Replace Exhaust Turbocharger For Cylinders 1-3
11 65 022 REMOVING AND INSTALLING/REPLACE EXHAUST TURBOCHARGER FOR CYLINDERS 1-3
11 65 022 - Removing and installing/replacing exhaust-gas turbocharger for cylinders 1-3 (N54)

Necessary preliminary tasks:
- Remove fan cowl with electric fan
- Draining coolant See: Coolant > Procedures
- Remove front right wheel arch trim
- Remove both catalytic exhaust-gas converters
- Remove vacuum unit (wastegate valve) See: Wastegate > Removal and Replacement > 11 65. Removing and Installing Vacuum Unit (Wastegate Valve) For Cylinders 4-6, cylinders 4-6
- Remove right charge-air duct
- Remove air duct See: Air Cleaner Fresh Air Duct/Hose > Removal and Replacement > 13 71 160 Removing and Installing/Replacing Front Air Duct, cylinders 1-3
- Remove coolant thermostat
- Remove coolant pump

pic 1

Release screws (2).
Tightening torque 11 42 7AZ See: Engine > Mechanical.

Installation:
Replace seal.

Release screw (1).

Tightening torque 11 42 8AZ See: Engine > Mechanical.
Remove oil return line (3) in direction of arrow.

Installation:
Replace O-ring.

Pic 2

Important!
Where necessary, to release the coolant feed lines (3 and 4), do not place pliers on the pipes.
Risk of damage!

Release screws (1 and 2).

Tightening torque 11 53 10AZ See: Engine > Mechanical.
If necessary, release coolant feed lines (3 and 4) with suitable pliers at connection.

Installation:
Replace O-rings.

Pic 3

Note:
For purposes of clarity, the graphic shows the released coolant feed lines removed.

Release screws (1).

Tightening torque 11 53 3AZ See: Engine > Mechanical.
Remove feed line (2).

Installation:
Replace seal.

Pic 4

Important!
Where necessary, to release the coolant feed and return lines (1 and 3), do not place pliers on the pipes.
Risk of damage!

Release screw (2).

Tightening torque 11 53 8AZ See: Engine > Mechanical.
If necessary, release coolant feed line (1) with suitable pliers at connection.

Installation:
Replace O-rings.

If necessary, release coolant return line (3) with suitable pliers at front connection.

Release screw (4).
Tightening torque 11 53 9AZ See: Engine > Mechanical.
If necessary, release coolant return line (3) with suitable pliers at rear connection and remove.

Installation:
Replace O-rings.

Pic 5

Release screws (1).
Tightening torque 11 65 2AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Remove retaining plate (2).
Release screws (3).
Tightening torque 11 65 2AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.

Pic 6

Important!
Carefully swing out heat shield (2) in direction of arrow.
Risk of damage!

Remove heat shield (2) in direction of arrow.

Note:
Coolant feed line (1) can be removed with heat shield (2).

Pic 7

Release screws (1).
Tightening torque 11 65 3AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Set holder (2) down on cylinder head cover.

Pic 8

Release screw (1).
Tightening torque 11 42 4AZ See: Engine > Mechanical.
Release oil feed line (2) in direction of arrow.

Installation:
Replace O-ring.

Pic 9

Release screw (1).
Tightening torque 11 42 5AZ See: Engine > Mechanical.

Important!
Where necessary, to release the oil feed line (2), do not place pliers on the pipe.
Risk of damage!

If necessary, release oil feed line (2) with suitable pliers at connection and remove.

Installation:
Replace O-rings.

Pic 10

Detach vacuum hose (3) from vacuum unit (wastegate valve).
Unscrew nuts (2).
Tightening torque 11 65 1AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Remove turbocharger (1) towards top.

Important!
Do not misuse linkage of vacuum unit (wastegate valve) to transport turbocharger (1)!
Risk of damage!

Pic 11

Installation:
Replace graphite sealing rings (1).

Assemble engine.
Clear fault memory in DME control unit.
Carry out BMW leak test See: Fuel Delivery and Air Induction > Component Tests and General Diagnostics > 11 61 730 BMW Leak Test For Intake System for intake system.
Observe DME control unit instructions.

_______________________________________________________________________________

2009 BMW X6 (E71) L6-3.0L Turbo (N54)
11 65 024 Removing and Installing/Replace Exhaust Turbocharger For Cylinders 4-6
Vehicle Powertrain Management Fuel Delivery and Air Induction Turbocharger Service and Repair Removal and Replacement 11 65 024 Removing and Installing/Replace Exhaust Turbocharger For Cylinders 4-6
11 65 024 REMOVING AND INSTALLING/REPLACE EXHAUST TURBOCHARGER FOR CYLINDERS 4-6
11 65 024 - Removing and installing/replacing exhaust-gas turbocharger for cylinders 4-6 (N54)

Necessary preliminary tasks:
- Remove fan cowl with electric fan
- Draining coolant See: Coolant > Procedures
- Remove front right wheel arch trim
- Remove both catalytic exhaust-gas converters
- Remove vacuum unit (wastegate valve) See: Wastegate > Removal and Replacement > 11 65. Removing and Installing Vacuum Unit (Wastegate Valve) For Cylinders 4-6, cylinders 4-6
- Remove right charge-air duct
- Remove air duct See: Air Cleaner Fresh Air Duct/Hose > Removal and Replacement > 13 71 160 Removing and Installing/Replacing Front Air Duct, cylinders 1-3
- Remove air duct, cylinders 4-6

pic 12

Release screws (2).
Tightening torque 11 42 7AZ See: Engine > Mechanical.

Installation:
Replace seal.

Unscrew bolt (3).

Tightening torque 11 42 8AZ See: Engine > Mechanical.
Remove oil return line (1) in direction of arrow.

Installation:
Replace O-ring.

Pic 13

Important!
Where necessary, to release the coolant feed lines (3 and 4), do not place pliers on the pipes.
Risk of damage!

Release screws (1 and 2).

Tightening torque 11 53 10AZ See: Engine > Mechanical.
If necessary, release coolant feed lines (3 and 4) with suitable pliers at connection.

Installation:
Replace O-rings.

Pic 14

Note:
For purposes of clarity, the graphic shows the released coolant feed lines removed.

Release screws (1).

Tightening torque 11 53 3AZ See: Engine > Mechanical.
Remove feed line (2).

Installation:
Replace seal.

Pic 15

Important!
Where necessary, to release the coolant return line (2), do not place pliers on the pipe.
Risk of damage!

Release screw (1).

Tightening torque 11 53 9AZ See: Engine > Mechanical.
If necessary, release coolant return line (2) with suitable pliers at connection.

Installation:
Replace O-ring.

Pic 16

Important!
Where necessary, to release the coolant feed and return lines (2 and 3), do not place pliers on the pipes.
Risk of damage!

Release screw (1).

Tightening torque 11 53 8AZ See: Engine > Mechanical.
If necessary, release coolant feed line (3) with suitable pliers at connection.

Installation:
Replace O-rings.

If necessary, release coolant return line (2) with suitable pliers at connection and remove.

Installation:
Replace O-rings.

Pic 17

Release screws (1).
Tightening torque 11 65 2AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Remove retaining plate (2).
Unfasten screws (3 and 4).
Tightening torque 11 65 2AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.

Pic 18

Important!
Carefully swing out heat shields (2 and 3) in direction of arrow.
Risk of damage!

Remove heat shield (3) in direction of arrow.

Remove heat shield (2) in direction of arrow.

Note:
Coolant feed line (1) can be removed with heat shield (2).

Pic 19

Release screw (1).
Tightening torque 11 42 4AZ See: Engine > Mechanical.
Release oil feed line (2) in direction of arrow.

Installation:
Replace O-ring.

Pic 20

Release screws (1).
Tightening torque 11 65 3AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Set holder (2) down on cylinder head cover.

Pic 21

Unscrew nuts (1).
Tightening torque 11 65 1AZ See: Engine > Mechanical > 11 65 Turbocharger and Control.
Remove turbocharger (2) downwards.

Pic 22

Release screw (2).
Tightening torque 11 42 5AZ See: Engine > Mechanical.

Important!
Where necessary, to release the oil feed line (3), do not place pliers on the pipe.
Risk of damage!

If necessary, release oil feed line (3) with suitable pliers at connection and remove.

Installation:
Replace O-rings.

Installation:
Replace graphite sealing rings (1).

Assemble engine.
Clear fault memory in DME control unit.
Carry out BMW leak test See: Fuel Delivery and Air Induction > Component Tests and General Diagnostics > 11 61 730 BMW Leak Test For Intake System for intake system.
Observe DME control unit instructions.

Let me know if this helps.

Joe
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Thursday, February 13th, 2020 AT 7:43 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Thanks very much. I remember this fault came up when I had to replace the alternator, was I suppose to fit in new gasket when I untied the manifold? Could air also be coming out from there to cause the low boost?
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Friday, February 14th, 2020 AT 1:39 AM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Thanks very much Joe and Jacob, your information I got from you both helped me resolve the boost low pressure, now the car runs just like before. Thanks very much. I am a beginner, but I am quick and fast to learning. I have the autel maxisys ms908pro. Thanks very much. I am mechanic in Cameroon.
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Friday, February 14th, 2020 AT 8:58 AM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey ANDRIN ATEM,

No problem at all.

What was the cause of the fault in the end?

Interested to know what was causing your problem here.

Regards, Joe
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Friday, February 14th, 2020 AT 9:06 AM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Hi Joe, the cylinder to gaskets were leaking out air, so I had to open it fit in new gaskets. Also the pipe housing going to the inter-cooler, was also not properly fitted. I had to remove the electric fan so I could gain more access. I also changed some few pipes going to the waste.
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Saturday, February 15th, 2020 AT 3:40 AM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
But before then, the main pipe going into the turbo was also out, that took me also the whole day to fit it properly well.
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Saturday, February 15th, 2020 AT 3:42 AM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey ANDRIN ATEM,

Sounds like you had a fair few things leaking there.

Excellent work on finding the leaks, hope its all running well and back to full power.

Thank you for using 2CarPros!

Regards, Joe
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Saturday, February 15th, 2020 AT 1:32 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Sure Joe, it is running as it should. Thanks was an excellent hand of help you extended, I feel good. I have always had an issue with the parking brakes, the yellow P light remains on board, I figure out it has an internal fault in the unit it self, but the emergency brake works when I pull it up when driving. So I do not know if it can be physically repaired by actually opening it.
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Saturday, February 15th, 2020 AT 3:43 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Glad to hear you got it fixed. And as mentioned, you had your hands full. LOL

Take care and let us know if you have questions in the future.

Joe
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Saturday, February 15th, 2020 AT 7:13 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Sure J. You did a great Job assisting through that nightmare. Thanks very much. I will always be glad to let you know when I have other questions.
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Saturday, February 15th, 2020 AT 11:16 PM
Tiny
JOETECHPRO
  • MECHANIC
  • 705 POSTS
Hey ANDRIN ATEM,

We are always happy to help.

Thanks again for using 2CarPros!

Regards, Joe
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Sunday, February 16th, 2020 AT 11:02 PM
Tiny
ANDRIN ATEM
  • MEMBER
  • 250 POSTS
Thanks!
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Monday, February 17th, 2020 AT 7:45 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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You are quite welcome.

Joe
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Monday, February 17th, 2020 AT 6:28 PM

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