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CZ: Audi A6 2.7L diesel - Multitronic CVT - Car will not move

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Old Apr 8, 2024 | 11:51 AM
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Default CZ: Audi A6 2.7L diesel - Multitronic CVT - Car will not move

Hello,
a friend of mine has an Audi a6 2.7 TDI* CANA 2009 with multitronic and the car stopped running out of nowhere, the car revs up but won't move a bit. They say it stank after towing 50 km/h. It doesn't report any errors in the units, nothing on the dashboard either, the lever selector doesn't flicker either. Gearbox was shifting perfectly fine to this moment. The oil was changed 30 TKM ago. Any tips on what to go for? Thank you and have a nice evening.
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Old Apr 9, 2024 | 07:09 AM
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What are you using for a scanner?
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Old Apr 9, 2024 | 09:47 AM
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I tried VCDS and Bosch in my friends service, it showed zero faults, car revs but it wont go forwards or backwards. Really weird.
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Old Apr 9, 2024 | 03:34 PM
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Why would it stink after towing? Was a pair of wheels on the ground when towed?

Sounds like either a transmission or driveline issue. I would hoist the car and inspect all axles and driveshafts and if nothing obvious is found then, while still on hoist, idle the engine with trans in gear and see if any shafts spin. Don’t rev it up while in gear on the hoist unless the traction control is disengaged otherwise the car may start bucking.
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Old Apr 9, 2024 | 03:48 PM
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Originally Posted by AudiAllTheWay
Why would it stink after towing? Was a pair of wheels on the ground when towed?

Sounds like either a transmission or driveline issue. I would hoist the car and inspect all axles and driveshafts and if nothing obvious is found then, while still on hoist, idle the engine with trans in gear and see if any shafts spin. Don’t rev it up while in gear on the hoist unless the traction control is disengaged otherwise the car may start bucking.
But what is strange is it's not complaining about anything.
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Old Apr 9, 2024 | 03:49 PM
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Originally Posted by Hornstercorps
I tried VCDS and Bosch in my friends service, it showed zero faults, car revs but it wont go forwards or backwards. Really weird.
zero faults? Post a full VCDS scan
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Old Apr 9, 2024 | 06:39 PM
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Mechanically broken driveline will trigger zero DTC’s, the engine will run and rev, transmission shifter gears will work but the car will not move. If this is the case then be sure to apply the parking brake or chalk the wheels otherwise the car can roll with trans in park.
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Old Apr 9, 2024 | 07:52 PM
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Originally Posted by AudiAllTheWay
Mechanically broken driveline will trigger zero DTC’s, the engine will run and rev, transmission shifter gears will work but the car will not move. If this is the case then be sure to apply the parking brake or chalk the wheels otherwise the car can roll with trans in park.
both front shafts would have to be broken. That would most likely make a hell of a racquet.
OP, you said the oil had been changed 30TKM eailer, is that the trans fluid, or the engine oil?
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Old Apr 10, 2024 | 06:13 AM
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One disconnected axle and the car will not move caused by things like one hub with stripped splines or a shattered CV. Same issue will happen if one differential has disintegrated. It may be a clue that the car smelled funny after towing.
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