Hello everyone,
It is my first post here, I just got the Audi A2 1.2 TDI a few months ago. I search the forum and I can't really find what I'm looking for. Don't crucify me please if I did not look hard enough.
from what I read on the forum, It seems I have a few issues with my hydraulics/ gearbox.
Problem one:
The car seems to shift at weird points. When downshifting the car goes in this very bad vibration mode just before shifting. feels like it's related to low RPM or something. when using the tiptronic mode the vibrations are gone. Feels like the car is gonna stall at each change on automatic mode. Also when i'm on Eco and i release the gas the car goes to neutral (rpm drop to around 800) and then bad vibrations again. this time it feel like a regular flocking... floc floc floc floc (like when you are crossing a bridge and rolling over those expenssions cracks). The clutch has been replaced 8 months ago by previous owner. Bad adjustments of some kind?
Problem two:
I did this test with the key on "ignition", foot on the brake, and counting the numbers of speed change on tiptronic mode before the pump start. I had two changes. From what i read it's pretty bad. So i changed the accumulator reservoir and now i got 3 changes. Wich is still pretty bad from my reading here. I guess i have a leak of hydraulic fluid somewhere. I looked around and it looks like there is fluid where the hoses are connecting. My plan is to replace the o-rings and retaining spring of the hydro hoses.
Qty:5 - Part Number: 085142420 - Description: O-ring
Qty:1 - Part Number: 6N0142425 - Description: Seal Ring
Qty:1 - Part Number: 085142110 - Description: Pin
Qty:1 - Part Number: 085142419 - Description: Retaining Spring
Good plan? Should the hoses be also replaced? Is there a link that explain how to do this? It seems not that complicated except for the very limited access space... does the system needs to be emptied of its fluids or a quick "zip zap zoop" is the way to go? Any bleeding necessary?
problem 3
Everybody is talking about the fact that the pump should start when you open the driver door. It doesn't on my car. My gas flap doesn't work also (switch is good). Could both problems be related to this micro switch that detect if the door is open?
found this video on youtube:
https://www.youtube.com/watch?v=pzxGY4N6Aew
Is that really the way to replace that switch? anyone has a part number for this switch?
Ok, that's about it for this first post. Thank you very much in advance for your help. keep up the good work
ps: sorry for my limited english, bonjour aux amis francophones
Grimchuck
It is my first post here, I just got the Audi A2 1.2 TDI a few months ago. I search the forum and I can't really find what I'm looking for. Don't crucify me please if I did not look hard enough.
from what I read on the forum, It seems I have a few issues with my hydraulics/ gearbox.
Problem one:
The car seems to shift at weird points. When downshifting the car goes in this very bad vibration mode just before shifting. feels like it's related to low RPM or something. when using the tiptronic mode the vibrations are gone. Feels like the car is gonna stall at each change on automatic mode. Also when i'm on Eco and i release the gas the car goes to neutral (rpm drop to around 800) and then bad vibrations again. this time it feel like a regular flocking... floc floc floc floc (like when you are crossing a bridge and rolling over those expenssions cracks). The clutch has been replaced 8 months ago by previous owner. Bad adjustments of some kind?
Problem two:
I did this test with the key on "ignition", foot on the brake, and counting the numbers of speed change on tiptronic mode before the pump start. I had two changes. From what i read it's pretty bad. So i changed the accumulator reservoir and now i got 3 changes. Wich is still pretty bad from my reading here. I guess i have a leak of hydraulic fluid somewhere. I looked around and it looks like there is fluid where the hoses are connecting. My plan is to replace the o-rings and retaining spring of the hydro hoses.
Qty:5 - Part Number: 085142420 - Description: O-ring
Qty:1 - Part Number: 6N0142425 - Description: Seal Ring
Qty:1 - Part Number: 085142110 - Description: Pin
Qty:1 - Part Number: 085142419 - Description: Retaining Spring
Good plan? Should the hoses be also replaced? Is there a link that explain how to do this? It seems not that complicated except for the very limited access space... does the system needs to be emptied of its fluids or a quick "zip zap zoop" is the way to go? Any bleeding necessary?
problem 3
Everybody is talking about the fact that the pump should start when you open the driver door. It doesn't on my car. My gas flap doesn't work also (switch is good). Could both problems be related to this micro switch that detect if the door is open?
found this video on youtube:
https://www.youtube.com/watch?v=pzxGY4N6Aew
Is that really the way to replace that switch? anyone has a part number for this switch?
Ok, that's about it for this first post. Thank you very much in advance for your help. keep up the good work
ps: sorry for my limited english, bonjour aux amis francophones
Grimchuck