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  1. #1
    Established Member Two Rings
    Join Date
    Feb 06 2020
    AZ Member #
    536968
    Location
    Helsinki / Finland

    Engine stalling on reverse (when cold)

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    So, here's the issue... Winter has come, and the temperature dropped to crispy -25c. If i start the car and try to reverse out of my parking spot, as soon i start to lift my foot from the brake it feels like the clutch is biting too much and the engine stalls. If i give it more throttle when it tries to stall everything works out just fine. After the first "clutch engagement" everything works just fine.

    What could it be? Is the clutch pack going bad? Should i run the clutch adaption cycle? Or is it just that the oil in the clutch is too thick and binds? Kinda embarrassing to stall an automatic

    Oh, and its a 2.0TDI with 7-speed dsg.

  2. #2
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Was the parking brake set?
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  3. #3
    Established Member Two Rings
    Join Date
    Feb 06 2020
    AZ Member #
    536968
    Location
    Helsinki / Finland

    Nope, the parking brake is not set... The vehicle starts "creep" backwards but when the clutch is engaging and "more" speed is gain it stalls. This morning i tested that when set to reverse, I press the brake hard and give it some gas, ~2000rpm you can feel that the car wants to go backwards but the brakes are holding it in place. After this, i let the engine drop to idle, release the brake and it creeps backwards normally... So my guess is that the oil in the clutch makes it stick too much. The real question is, is this normal or something that should be taken care of?

  4. #4
    Veteran Member Three Rings
    Join Date
    Jun 12 2019
    AZ Member #
    492341
    My Garage
    MK5 Rabbit 2.5 5spd
    Location
    Natick, MA

    Quote Originally Posted by Carl0s View Post
    .... The real question is, is this normal or something that should be taken care of?
    Absolutely not normal for the car to stall in reverse, cold weather or not. Hope someone can offer some suggestions on what it might be, but if it were me I’d be scheduling a visit to the dealer if under warranty or a good Indy shop if not. Good luck!
    2016 A6 P+ 3.0T / Aviator Blue Metallic / APR Stage II Single Pulley 93 Octane / BG_SQ5 tcu / MercRacing hx v3 / Hartmann Rotor Reps 20x9 ET40 w/ 265/35-20 PS4S / 0-60 3.56 sec

  5. #5
    Veteran Member Four Rings
    Join Date
    Sep 16 2020
    AZ Member #
    564872
    Location
    West Michigan

    Quote Originally Posted by 2k16A6 View Post
    Absolutely not normal for the car to stall in reverse, cold weather or not. Hope someone can offer some suggestions on what it might be, but if it were me I’d be scheduling a visit to the dealer if under warranty or a good Indy shop if not. Good luck!
    Being that the OP is in Europe, doesn't that mean he likely has a DSG gearbox?
    2012 A6 Prestige - APR single pulley via Fluidampr 189, Injen intake+RS7 airbox, IE HPFP, EPL TCU, JHM HX, 034 motor mounts, Eurocode drivetrain inserts, gutted cats - 034 tunes purchased, not installed.

  6. #6
    Veteran Member Three Rings
    Join Date
    Jun 12 2019
    AZ Member #
    492341
    My Garage
    MK5 Rabbit 2.5 5spd
    Location
    Natick, MA

    Quote Originally Posted by sepheroth86 View Post
    Being that the OP is in Europe, doesn't that mean he likely has a DSG gearbox?
    Yes I believe he states that he has the dsg. I have little to no experience with a dsg however I'd be surprised if this is expected behavior. If it is then I'll gladly put my foot in my mouth but for now I'll stand by my comment that this is absolutely not normal.
    2016 A6 P+ 3.0T / Aviator Blue Metallic / APR Stage II Single Pulley 93 Octane / BG_SQ5 tcu / MercRacing hx v3 / Hartmann Rotor Reps 20x9 ET40 w/ 265/35-20 PS4S / 0-60 3.56 sec

  7. #7
    Veteran Member Four Rings
    Join Date
    Sep 16 2020
    AZ Member #
    564872
    Location
    West Michigan

    Quote Originally Posted by 2k16A6 View Post
    Yes I believe he states that he has the dsg. I have little to no experience with a dsg however I'd be surprised if this is expected behavior. If it is then I'll gladly put my foot in my mouth but for now I'll stand by my comment that this is absolutely not normal.
    My guess is that maybe there is an issue with the gearbox (DSG) in this instance.
    2012 A6 Prestige - APR single pulley via Fluidampr 189, Injen intake+RS7 airbox, IE HPFP, EPL TCU, JHM HX, 034 motor mounts, Eurocode drivetrain inserts, gutted cats - 034 tunes purchased, not installed.

  8. #8
    Veteran Member Three Rings
    Join Date
    Jun 12 2019
    AZ Member #
    492341
    My Garage
    MK5 Rabbit 2.5 5spd
    Location
    Natick, MA

    Quote Originally Posted by sepheroth86 View Post
    My guess is that maybe there is an issue with the gearbox (DSG) in this instance.
    Not sure where I said anything to the contrary, or if in fact that you're suggesting I did. All I said was that it is absolutely not normal for the car to stall in reverse and it should be checked out. My guess was a gearbox issue as well, but when I said "hope someone can offer suggestions on what it might be" I meant specific issues not just that something isnt right.

    Anywho, I think we're in agreement. Not normal. Likely a gearbox issue, dsg in the case of the OP.
    2016 A6 P+ 3.0T / Aviator Blue Metallic / APR Stage II Single Pulley 93 Octane / BG_SQ5 tcu / MercRacing hx v3 / Hartmann Rotor Reps 20x9 ET40 w/ 265/35-20 PS4S / 0-60 3.56 sec

  9. #9
    Veteran Member Three Rings
    Join Date
    Oct 18 2017
    AZ Member #
    408561
    Location
    NW Philly

    It's cold. Maybe let the whole thing warm for 5 minutes before setting off?
    Maybe you already do...could be a quirk of really cold weather.


    Sent from my iPhone using Audizine

  10. #10
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Quote Originally Posted by Carl0s View Post
    So, here's the issue... Winter has come, and the temperature dropped to crispy -25c. If i start the car and try to reverse out of my parking spot, as soon i start to lift my foot from the brake it feels like the clutch is biting too much and the engine stalls.
    Would it be useful to back into your parking spot in the evening so in the morning when cold you are going into first gear on the other set of gears in the transmission and see what happens? Maybe help narrow down the possible causes? I don't know if an engine block heater would also heat the transmission.
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

  11. #11
    Established Member Two Rings
    Join Date
    Feb 06 2020
    AZ Member #
    536968
    Location
    Helsinki / Finland

    It has webasto and it only heats the engine... And i've been using it ever since the temps went bellow 10c (i really dont like the cold)... I did a test yesterday, and if i don't use the aux heater, the clutch works fine - this made me wonder if it has something to do with transmission being cold and the engine being warm so it applies the clutch in a different manner...

  12. #12
    Veteran Member Four Rings Alabama's Avatar
    Join Date
    Apr 19 2020
    AZ Member #
    545706
    My Garage
    C7 S6
    Location
    Birmingham Alabama

    Quote Originally Posted by Carl0s View Post
    It has webasto and it only heats the engine... And i've been using it ever since the temps went bellow 10c (i really dont like the cold)... I did a test yesterday, and if i don't use the aux heater, the clutch works fine - this made me wonder if it has something to do with transmission being cold and the engine being warm so it applies the clutch in a different manner...
    Good test! I wonder if the folk who wrote the original ECU/TCU software did not imagine that such a great temperature difference might occur. Maybe one of the AZ folk who do tuning will have technical insight. So maybe nothing is broken; it's just a programming oversight? However, as you need that block heater, hopefully someone can reassure you the situation won't damage the transmission. Apparently transmission heaters are discussed by operators of big trucks and tractors.
    2014 CPO S6, SunTek PPF (applied by CGS Vinyl), BlackVue dashcam (installed by Radio Active), Hawk Brake Pads/Zimmermann Rotors/Goodridge SS Brake Lines, H&R sway bars, Alu Kreuz, 034 Drivetrain Mount Inserts, SRM Driveshaft Carrier (mechanical/maintenance by Franklin Automotive)

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