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Thread: BiTdi Electronic Turbo Actuator?

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  1. Re: BiTdi Electronic Turbo Actuator? 
    #21
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    Update car fixed!!!

    Part arrived in the post today. I brought a replacement actuator from the same Seller on ebay (nerings) as M3 Compact

    My actuator had G-83 Printed on the casting, G-098 superseeds it, there are plenty of these bring sold on the net.

    Fitted the actuator exactly as i removed it, still noticed no adjustment in the bolt holes as the workshops manual suggests. I didnt use any special tools. Hardest part of the rebuild was getting the bulkhead heatshield back on, otherwise straight forward remove and replace. I cleared fault codes using vcds and cycled the actuator Before i started the car, just to check that the actuator was moving freely and smoothly. There was not jerking motion in the full travel. Filled up with some V power diesel and gave it a good run.

    Drives perfect, power delivery is much smoother . I’ve not had my car long and it feels more powerful than before, especially around the middle of the rev range.

    Next steps as a precautionary I’m going to use some turbo cleaner, just to make sure those turbo vanes are clean. During my research on the net I read that actuator failure could also be attributed to sticking vanes due to build up on carbon on short journeys. I don’t do big miles and with Covid restrictions in place havent really been going anywhere far.

    Thanks once again to everyone on this thread for helping me fix my problem, hopefully my post will help someone else too.
     
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  2. Re: BiTdi Electronic Turbo Actuator? 
    #22
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    Nice one Ranj.
    Great additional info too.

    Hope this thread helps others in the future, because my A6 is still running like a Swiss watch.

    Still burning Boxsters off, returning 40+ MPG on motorways and towing my 2 tonne car trailer effortlessly when req'd too.
     
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  3. Re: BiTdi Electronic Turbo Actuator? 
    #23
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    Quote Originally Posted by M3 Compact View Post
    Mine came from here....

    Turbocharger Electronic Actuator G-098 Audi A6 A7 Q5 SQ5 3.0 TDI NEW Original | eBay

    Removal is a bit of a mission. Approx 2 hours.

    My actuator had an electronic fault, apparently physical faults inside the actuator with the worm gear are more common.

    How much is the actuator from the dealer?
    I would happily have paid a bit extra for a guaranteed brand new one.

    Good luck.
    just out of curiosity did the g number on the side of the unit the same as the one that was on ur own
     
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  4. Re: BiTdi Electronic Turbo Actuator? 
    #24
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    Quote Originally Posted by RanjT View Post
    Update car fixed!!!

    Part arrived in the post today. I brought a replacement actuator from the same Seller on ebay (nerings) as M3 Compact

    My actuator had G-83 Printed on the casting, G-098 superseeds it, there are plenty of these bring sold on the net.

    Fitted the actuator exactly as i removed it, still noticed no adjustment in the bolt holes as the workshops manual suggests. I didnt use any special tools. Hardest part of the rebuild was getting the bulkhead heatshield back on, otherwise straight forward remove and replace. I cleared fault codes using vcds and cycled the actuator Before i started the car, just to check that the actuator was moving freely and smoothly. There was not jerking motion in the full travel. Filled up with some V power diesel and gave it a good run.

    Drives perfect, power delivery is much smoother . I’ve not had my car long and it feels more powerful than before, especially around the middle of the rev range.

    Next steps as a precautionary I’m going to use some turbo cleaner, just to make sure those turbo vanes are clean. During my research on the net I read that actuator failure could also be attributed to sticking vanes due to build up on carbon on short journeys. I don’t do big miles and with Covid restrictions in place havent really been going anywhere far.

    Thanks once again to everyone on this thread for helping me fix my problem, hopefully my post will help someone else too.
    Do you have any advice im about to buy one for my car and replace it

    ie how to get it off the easyest way and when u said the bulkhead heatsheld does that have to come off
     
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  5. Re: BiTdi Electronic Turbo Actuator? 
    #25
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    Quote Originally Posted by dfox75615 View Post
    just out of curiosity did the g number on the side of the unit the same as the one that was on ur own
    Yes you have to match the G number on the side of the unit. I think the diff G numbers relate to no of teeth on the worm gear or half moon cog
     
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  6. Re: BiTdi Electronic Turbo Actuator? 
    #26
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    You can buy from TPS for around £252 plus vat or source a recon unit from ebay. Wouldnt consider 2nd hand as the internals are prone to wearing away.

    Easiest way to get it off is follow the workshop manual for removal of the scuttle panel, bulkhead divider plate between engine and where wiper motor is.

    Once thats removed its 3 bolts to remove the actuator and the circlip on the vanes rod. Remove the electrical plug and replacement is the opposite of removal.

    You have to remove the bulkhead divider and heatshield to get the unit out and get the harness connector off, this is minimum u must remove to get the unit out.
     
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  7. Re: BiTdi Electronic Turbo Actuator? 
    #27
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    Quote Originally Posted by M3 Compact View Post
    2012 3.0 BiTdi 129K miles.

    Glow plug light started flashing today and the car went into limp mode..

    VCDS scan revealed various faluts relating to actuator/solenoid/short to power, but after clearing the codes a couple of times, these are consistent...




    Address 01: Engine Labels: Redir Fail!
    Control Module Part Number: 4G0 907 589 A HW: 4G0 907 589
    Component and/or Version: 3.0BTD EDC17 H21 0004
    Software Coding: 122A4012057601020800
    Work Shop Code: WSC 02391 785 00200
    ASAM Dataset: EV_ECM30BTD0114G0907589A 001005 (AU57)
    ROD: EV_ECM30BTD0114G0907589A.rod
    VCID: 326CC18A65B421D12F-8066
    3 Faults Found:

    5319 - Control Circuit for Controller for Turbocharger 1 (J724)
    P3348 00 [036] - Electrical Malfunction
    Intermittent - Not Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 1
    Mileage: 208979 km
    Date: 2020.01.24
    Time: 17:51:59

    Engine speed: 1556.50 /min
    Normed load value: 73.3 %
    Vehicle speed: 10 km/h
    Coolant temperature: 45 °C
    Intake air temperature: 14 °C
    Ambient air pressure: 1000 mbar
    Voltage terminal 30: 13.200 V
    Unlearning counter according OBD: 40
    Accelerator pedal travel: 24.08 %
    Charge Pressure Actuator: activation: 96.20 %
    Charge Pressure Actuator: acknowledgment: 55.70 %
    Turbocharger boost control: offset closed: 0.00 %
    Turbocharger boost control: offset open: 0.00 %
    High press turbocharger actuator: actual uncond volt value: 2648.8 mV

    9126 - Actuator Module for Turbocharger 1
    P00AF 00 [032] - Stuck
    Intermittent - Not Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 1
    Mileage: 208979 km
    Date: 2020.01.24
    Time: 17:14:59

    Engine speed: 809.00 /min
    Normed load value: 20.8 %
    Vehicle speed: 0 km/h
    Coolant temperature: 53 °C
    Intake air temperature: 29 °C
    Ambient air pressure: 1000 mbar
    Voltage terminal 30: 14.480 V
    Unlearning counter according OBD: 40
    Accelerator pedal travel: 0.00 %
    Charge Pressure Actuator: activation: 5.00 %
    Charge Pressure Actuator: acknowledgment: 100.63 %
    Turbocharger boost control: offset closed: 0.00 %
    Turbocharger boost control: offset open: 0.00 %
    High press turbocharger actuator: actual uncond volt value: 4281.4 mV

    9127 - Actuator Module for Turbocharger 1
    P00AF 00 [167] - Stuck
    MIL ON - Not Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 1
    Mileage: 208980 km
    Date: 2020.01.24
    Time: 18:21:11

    Engine speed: 0.00 /min
    Normed load value: 0.0 %
    Vehicle speed: 0 km/h
    Coolant temperature: 60 °C
    Intake air temperature: 12 °C
    Ambient air pressure: 1000 mbar
    Voltage terminal 30: 11.760 V
    Unlearning counter according OBD: 40
    Accelerator pedal travel: 0.00 %
    Charge Pressure Actuator: activation: 100.00 %
    Charge Pressure Actuator: acknowledgment: -4.82 %
    Turbocharger boost control: offset closed: 0.00 %
    Turbocharger boost control: offset open: 0.00 %
    High press turbocharger actuator: actual uncond volt value: 254.0 mV




    Google indicates the possibility of a failed Hella electronic actuator?

    TIA.
    If you change actuator need calibration

    Sent from my SM-J415F using Tapatalk
     
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  8. Re: BiTdi Electronic Turbo Actuator? 
    #28
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    Hi to all, yesterday I experienced the same problem on my A7 bitdi 2014 208000km , glow plug lights and car in limb mode. Because I was on business trip I discovered that you need to turn engine off then ON put car in manual shift on right and drive car above 2900 rpm, then you can drive car as fast you want. Your car will go in safe mode only in city...
    Hope that this will help someone, it did to me 👍
     
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  9. Re: BiTdi Electronic Turbo Actuator? 
    #29
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    Hello,


    I had same problem, one week ago I change my actuator G-83 to new one G098. Car ride right without any issue.
    After one week I discovered this, when I ride with light foot on pedal, if I have around 1000-1500rpm with really soft acceleration car pull at or falter. if I accelerate more, then car works without any issue, fast and good.


    Do you have some idea what can do this? it looks like missing fuel, or pressure in turbo?

    Thank you.
     
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  10. Re: BiTdi Electronic Turbo Actuator? 
    #30
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    Quote Originally Posted by barond View Post
    Hello,


    I had same problem, one week ago I change my actuator G-83 to new one G098. Car ride right without any issue.
    After one week I discovered this, when I ride with light foot on pedal, if I have around 1000-1500rpm with really soft acceleration car pull at or falter. if I accelerate more, then car works without any issue, fast and good.


    Do you have some idea what can do this? it looks like missing fuel, or pressure in turbo?

    Thank you.
    The same problem is in my car, the car between this rpm-s is reacting very slow, my car was 15 days at mechanic and they try to position the new Actuator but didn't help, they turn off EGR but this didn't help.
    Now we will try to install original actuator from working vehicle and then we will see if situation will become better.
    My opinion is that substitute actuator can't be like original, it's to slow or/and can't be adjusted correctly to Audi software.

    If this fix problem then I will buy new original bi-turbo for my car.

    Regards!
     
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