Boost Pressure Regulation/ turbo whine/limp mode

unclebob

Active Member
Jul 22, 2009
98
0
Morning all,

So I have an 2.0 bkd altea,

I've looked after it fairly well since ive owned it (bought it in 2009, 86k on the clock) in that its had a yearly or 5000 mile oil and filter change (which ever comes first).

the turbo has sounded like a siren since the day i purchased it...

Car is (unfortunately) mainly used for short journeys, so over the weekend i took it for a 300 mile journey on motorways...

When putting my foot down to accelerate fairly rapidly, i'd get the car going into limp mode and turbo shuts down. Turn off the car, back on again and we are back to normal.

I had this about a year ago (funnily enough almost to the day!)

Logs attached:
2015:

Code:
Tuesday,25,August,2015,20:59:49:38462
VCDS -- Windows Based VAG/VAS Emulator Running on Windows XP x86
VCDS Version: 15.7.0.2
Data version: 20150820
www.Ross-Tech.com


VIN: VSSZZZ5PZ6R017979   License Plate: BL55CVW
Mileage: 183570km-114065mi   Repair Order: 


Chassis Type: 5P (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72

VIN: VSSZZZ5PZ6R017979   Mileage: 183570km-114065miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03G-906-016-BKD.lbl
   Part No SW: 03G 906 016 HE    HW: 028 101 229 1
   Component: R4 2,0L EDC G000SG  7000  
   Revision: 12345678    Serial number: SEZ7Z0E3077378
   Coding: 0050072
   Shop #: WSC 06402 785 00200
   VCID: 6D241F30A520AEFDE678E4-8038

1 Fault Found:
16618 - Boost Pressure Regulation 
            P0234 - 000 - Limit Exceeded (Overboost Condition) - Intermittent
             Freeze Frame:
                    RPM: 2478 /min
                    Torque: 284.0 Nm
                    Speed: 101.0 km/h
                    Load: 60.0 %
                    Voltage: 13.98 V
                    Bin. Bits: 00101000
                    Absolute Pres.: 2172.6 mbar
                    Absolute Pres.: 2590.8 mbar

Readiness: 1 1 0 0 0 

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No SW: 1K0 907 379 Q    HW: 1K0 907 379 Q
   Component: ESP FRONT MK60      0102  
   Revision: 00T12001    
   Coding: 0006898
   Shop #: WSC 06402 785 00200
   VCID: 407A9684C23293957DBE95-8014

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-907-044.lbl
   Part No: 5P0 907 044 B
   Component: ClimatronicPQ35 006 0203  
   Shop #: WSC 00000 000 00000
   VCID: 2F98C5386FAC1CED94E45E-807A

1 Fault Found:
00229 - Refrigerant Pressure 
            002 - Lower Limit Exceeded

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 3C0-937-049-23-H.lbl
   Part No SW: 3C0 937 049 E    HW: 3C0 937 049 E
   Component: Bordnetz-SG     H37 1002  
   Revision: 00H37000    Serial number: 00000003392571
   Coding: 81880F2700041000001E00000100000000007F0B5C
   Shop #: WSC 06402 785 00200
   VCID: 2BA0D1285BB460CDB88C8A-807E

   Subsystem 1 - Part No: 5P0 955 119 B  Labels: 1KX-955-119.CLB
   Component: Wischer SE359  012  0402  
   Coding: 00056272
   Shop #: WSC 06402  

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 N    HW: 1K0 909 605 N
   Component: S8 AIRBAG VW8   015 2100  
   Revision: 03015000    Serial number: 0038ED0GK5HA  
   Coding: 0021304
   Shop #: WSC 06402 785 00200
   VCID: 3788FD5897FCD42DCC1436-8062

   Subsystem 1 - Serial number: 6332MSME0A7D3923I

   Subsystem 2 - Serial number: 6342MSME0B0C7809J

   Subsystem 3 - Serial number: 6351HSME08040558/

   Subsystem 4 - Serial number: 6361HSME077D00623

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AG    HW: 1K0 953 549 AG
   Component: J0527           034 0070  
   Coding: 0002042
   Shop #: WSC 06402 785 00200
   VCID: 77083D58D77C142D0C9476-8022

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: E0221           004 0060

1 Fault Found:
00888 - Wiper Switch for Intermittent Operation (E22) 
            014 - Defective - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 5P0 920 923 A
   Component: KOMBIINSTRUMENT VO3 0616  
   Coding: 0002401
   Shop #: WSC 06403 785 00200
   VCID: 2F98C5386FAC1CED94E45E-807A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 F    HW: 1K0 907 951 
   Component: Gateway         H10 0120  
   Revision:   H10       Serial number: 28001056308A85
   Coding: 3D3F0340078203
   Shop #: WSC 06402 785 00200
   VCID: 2AAED42C544E79C5439A87-807E

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 5P0 920 923 A
   Component: IMMO            VO3 0616  
   Shop #: WSC 01069 210 103434
   VCID: 2F98C5386FAC1CED94E45E-807A

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MAX2.lbl
   Part No: 1T0 959 701 C
   Component: Tuer-SG         024 2432  
   Coding: 0000656
   Shop #: WSC 06402 785 00200
   VCID: 3788FD5897FCD42DCC1436-8062

1 Fault Found:
00932 - Electric Window Motor; Drivers Side (V147) 
            005 - No or Incorrect Basic Setting / Adaptation - Intermittent

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-14x-44.clb
   Part No: 1K2 909 144 J
   Component: EPS_ZFLS Kl.5   D04 1606  
   Shop #: WSC 00000 000 00000
   VCID: 3390C9488384380DF03C62-8066

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AK
   Component:    KSG              0401  
   Coding: 19C000DC2D0005054C5F863000CC
   Shop #: WSC 01069 210 174572
   VCID: 790C3B60E168025D7A8060-802C

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H03 1301

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE No Answer     

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MAX2.lbl
   Part No: 1T0 959 702 C
   Component: Tuer-SG         024 2432  
   Coding: 0000656
   Shop #: WSC 06402 785 00200
   VCID: 388AFE649AE2DB55C50E3D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
   Part No: 5P2 035 152 
   Component: Radio BNO           0035  
   Coding: 0040400
   Shop #: WSC 06402 785 00200
   VCID: 67286D1887DC84AD9C3426-8032

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN2.lbl
   Part No: 1K0 959 703 E
   Component: Tuer-SG         021 2426  
   Coding: 0000144
   Shop #: WSC 06402 785 00200
   VCID: 329ECC4C7C9E3105FBCA7F-8066

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN2.lbl
   Part No: 1K0 959 704 E
   Component: Tuer-SG         021 2426  
   Coding: 0000144
   Shop #: WSC 06402 785 00200
   VCID: 3390C9488384380DF03C62-8066

No fault code found.

End-------------------------(Elapsed Time: 01:47)--------------------------

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 42: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 16: DTCs cleared
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: DTCs cleared


So googling around and reading forums suggest blocked EGR, split pipes and a whole host of other things.


As part of the drive, when i came off the motorways, i found that if i was accelerating while going round a roundabout exit (so taking a left turn off the roundabout) i could hear the turbo grinding, as if it had no oil, i'll let my foot off the accelerator, straighten up, then slowly accelerate again, and the noise isn't present... I'm thinking oil starvation due to going round the corner? Oil levels are between the middle and bottom marker, though it is now due a change.

The other errors on the logs - the window regulator was changed - i guess not reset, wipers seem to work fine so im guessing possibly same issue people have with the cruse control) and AC - needs a top up so not concerned at present..

What im looking for is some possible things to look at/check for the boost pressure and the possible oil starvation...

On a side (and possibly related or not) i'm loosing coolant, and as far as i can tell have a c block. Occasionally i get a cloud of white smoke when accelerating hard, so im suspecting egr cooler may be on its way out?
 
Last edited:

unclebob

Active Member
Jul 22, 2009
98
0
Same log from 2014:

Code:
Monday,25,August,2014,11:46:25:38462
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.2.0
Data version: 20140212


VIN: VSSZZZ5PZ6R017979   License Plate: BL55CVW
Mileage: 179400km-111473mi   Repair Order: 



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 5P (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72

VIN: VSSZZZ5PZ6R017979   Mileage: 179400km/111473miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03G-906-016-BKD.lbl
   Part No SW: 03G 906 016 HE    HW: 028 101 229 1
   Component: R4 2,0L EDC G000SG  7000  
   Revision: 12345678    Serial number: SEZ7Z0E3077378
   Coding: 0050072
   Shop #: WSC 06402 785 00200
   VCID: 6DDACB067407C076401-8038

1 Fault Found:
16618 - Boost Pressure Regulation 
            P0234 - 000 - Limit Exceeded (Overboost Condition) - Intermittent
             Freeze Frame:
                    RPM: 2961 /min
                    Torque: 342.0 Nm
                    Speed: 94.0 km/h
                    Load: 100.0 %
                    Voltage: 14.29 V
                    Bin. Bits: 00101000
                    Absolute Pres.: 2264.4 mbar
                    Absolute Pres.: 2590.8 mbar

Readiness: 1 1 0 0 0 

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No SW: 1K0 907 379 Q    HW: 1K0 907 379 Q
   Component: ESP FRONT MK60      0102  
   Revision: 00T12001    
   Coding: 0006898
   Shop #: WSC 06402 785 00200
   VCID: 408442B21315FD1EDB7-8015

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-907-044.lbl
   Part No: 5P0 907 044 B
   Component: ClimatronicPQ35 006 0203  
   Shop #: WSC 00000 000 00000
   VCID: 2F66110EBE8B726632D-807A

1 Fault Found:
00229 - Refrigerant Pressure 
            002 - Lower Limit Exceeded

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 3C0-937-049-23-H.lbl
   Part No SW: 3C0 937 049 E    HW: 3C0 937 049 E
   Component: Bordnetz-SG     H37 1002  
   Revision: 00H37000    Serial number: 00000003392571
   Coding: 81880F2700041000001E00000100000000007F0B5C
   Shop #: WSC 06402 785 00200
   VCID: 2B5E051E8A930E461E5-807E

   Subsystem 1 - Part No: 5P0 955 119 B  Labels: 1KX-955-119.CLB
   Component: Wischer SE359  012  0402  
   Coding: 00056272
   Shop #: WSC 06402  

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 N    HW: 1K0 909 605 N
   Component: S8 AIRBAG VW8   015 2100  
   Revision: 03015000    Serial number: 0038ED0GK5HA  
   Coding: 0021304
   Shop #: WSC 06402 785 00200
   VCID: 3776296E46DBBAA66AD-8062

   Subsystem 1 - Serial number: 6332MSME0A7D3923I

   Subsystem 2 - Serial number: 6342MSME0B0C7809J

   Subsystem 3 - Serial number: 6351HSME08040558/

   Subsystem 4 - Serial number: 6361HSME077D00623

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AG    HW: 1K0 953 549 AG
   Component: J0527           034 0070  
   Coding: 0002042
   Shop #: WSC 06402 785 00200
   VCID: 77F6E96E065B7AA6AAD-8022

   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: E0221           004 0060

1 Fault Found:
00888 - Wiper Switch for Intermittent Operation (E22) 
            014 - Defective - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 5P0 920 923 A
   Component: KOMBIINSTRUMENT VO3 0616  
   Coding: 0002401
   Shop #: WSC 06403 785 00200
   VCID: 2F66110EBE8B726632D-807A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 F    HW: 1K0 907 951 
   Component: Gateway         H10 0120  
   Revision:   H10       Serial number: 28001056308A85
   Coding: 3D3F0340078203
   Shop #: WSC 06402 785 00200
   VCID: 2A50001A8569174EE53-807F

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 5P0 920 923 A
   Component: IMMO            VO3 0616  
   Shop #: WSC 01069 210 103434
   VCID: 2F66110EBE8B726632D-807A

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MAX2.lbl
   Part No: 1T0 959 701 C
   Component: Tuer-SG         024 2432  
   Coding: 0000656
   Shop #: WSC 06402 785 00200
   VCID: 3776296E46DBBAA66AD-8062

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-14x-44.clb
   Part No: 1K2 909 144 J
   Component: EPS_ZFLS Kl.5   D04 1606  
   Shop #: WSC 00000 000 00000
   VCID: 336E1D7E52A35686565-8066

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AK
   Component:    KSG              0401  
   Coding: 19C000DC2D0005054C5F863000CC
   Shop #: WSC 01069 210 174572
   VCID: 79F2EF56304F6CD6DC9-802C

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H03 1301

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE No Answer     

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MAX2.lbl
   Part No: 1T0 959 702 C
   Component: Tuer-SG         024 2432  
   Coding: 0000656
   Shop #: WSC 06402 785 00200
   VCID: 38742A524BC5B5DE637-806D

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
   Part No: 5P2 035 152 
   Component: Radio BNO           0035  
   Coding: 0040400
   Shop #: WSC 06402 785 00200
   VCID: E7D6392ED6FB6A26BAD-80B2

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN2.lbl
   Part No: 1K0 959 703 E
   Component: Tuer-SG         021 2426  
   Coding: 0000144
   Shop #: WSC 06402 785 00200
   VCID: 3260187AADB95F8E5D3-8067

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN2.lbl
   Part No: 1K0 959 704 E
   Component: Tuer-SG         021 2426  
   Coding: 0000144
   Shop #: WSC 06402 785 00200
   VCID: 336E1D7E52A35686565-8066

No fault code found.

End   ---------------------------------------------------------------------
 

unclebob

Active Member
Jul 22, 2009
98
0
PS - i tried to map the boost request/actual but the laptop couldn't handle the graphing software so will need to install vcds on a newer laptop and try again. Do i need to do the recording while driving or can i do it stationary?
 

SeatJay

Active Member
Jul 25, 2015
293
0
Interested in following this, I have the same fault code and had my first issue after buying the car this weekend. Was driving back from the coast and the turbo was fine one minute and then not working the next. I've bought the Diesel Turbo Cleaner from Forte and am hoping it is just a sticky vein that can be cured with it.

I would be interested to hear anyone elses fixes and things to check!
 

Brody_Antoine

Active Member
Jul 20, 2014
47
0
plus.google.com
Hi everyone has anyone repair the overboost issues, ive got the same issue it is intermittent and scared to excelerate had to go back into limp mode. I scan with vcds and im gonna have to do some inspection. But work hours are long and just not enough time and winter is fast approaching. Anyone with ideas would be appreciated. See pics
0075851d41c473ec9e707ba8a9fa4810.jpg
e02a3a770cbc541911341d1190204a6a.jpg
a6dd5b447d8ff756e03b204fdcd1c87c.jpg
537d90089b5250e674c64ead86f120e3.jpg


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