s4 sat for 1.5 years how do i prep it to start it

[juicyzackk]

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ok guys crashed my s4 b8.5 120k miles 1.5 years ago basiclly and just sat in my drive way, front end collosion, other than damage to body panels the headlight was fully gone and the core support got bent a little but that is all

so i just replaced the entire front, rad, rad support brackets crash bar and all of that since i got the entire thing from a parts car. i changed everything now inside and out and filled back all liquids except for trans and engine

My only concers are how do i start the car the safest way while not trying to damage my engine or transmission, car ran for 5 years like a dream before the crash. obv i lost trans fluid from changing the front end so i am worried how do i go from here.

my last steps now im thinking is do i try to drain the trans fluid and fill it back up and change the filters, also change engine oil and fitlers. also gonna take out the old fuel and put new one in and change spark plugs. and use fogging oil

any tips or advice ?

thanks boys

 

[NHN]

My concern would be what was damaged on the box to cause it to leak.

Usually the oil would need to be at a certain temp before draining, that of course isn't possible, so you'd be best to drain what's left then refill as per specs, usually with a specific pipe, but your box maybe different, then run up to temp see how it is, then if ok, I'd do another change now you can get it warm, then any residual old oil will be removed & fully replenish with new.

 

[northpole]

just top up the gearbox oil... than start it... afterwards you can do it the right way.

 

[NHN]

I would not do that, unfortunately if it's like most, you can't just top up, you have to extract it all & add a specific amount, there is no way to measure the volume & no dipstick, if you add too much or too little it'll damage the box, usually it's gravity fed via the adapter pipe, you have to 1st undo the box oil feed bung, then remove the internal plastic tube, this allows release of the existing oil, then refit the plastic tube, then add new oil to the litres specified by Audi, then if accessible, do a box reset with odis or vcds, run the specific test drive routine to learn new values, then see how it is.

Unfortunately you'll have to more than likely do this twice to clean out old oil given it's been standing for so long.

 

[northpole]

how much oil did you loose from the gearbox? because if it's just about 250cc you can start the car without a problem... but don't go and drive it around, drive it to get the gearbox oil change done properly.

 

[juicyzackk]

My concern would be what was damaged on the box to cause it to leak.

Usually the oil would need to be at a certain temp before draining, that of course isn't possible, so you'd be best to drain what's left then refill as per specs, usually with a specific pipe, but your box maybe different, then run up to temp see how it is, then if ok, I'd do another change now you can get it warm, then any residual old oil will be removed & fully replenish with new.

after it was sitting for about a year i started taking eveything off that i needed to replace. the car sat in my driveway on an incline where the rear of it was the lower end. i took the front end off and disconnected the trans cooling lines and it stayed like that for a while. so oil got out of the trans oil cooling lines not that anything was damaged. i only damaged the headlight and a small portion of the rad core support. i am assuming all of my trans oil got out. i will for sure be doing the dsg service with oem dsg oil.

whoud it be ok if i tried to turn the car on how it is now? without driving or anything of course just wanna make sure it would run then i drain and change all of the dsg oil and filters.

 

[juicyzackk]

how much oil did you loose from the gearbox? because if it's just about 250cc you can start the car without a problem... but don't go and drive it around, drive it to get the gearbox oil change done properly.

my trans cooling lines where disconnected for awhile while the front of the car was jacked up since i moved the front end. i am not sure how much i lost, i was gonna assume i lost it all no?

 

[northpole]

If that is the case you lost loads.... you'll have to put at least the bare minimum in there... to run it especially if it's an automatic. But if it's a manual... just start it as long as you keep it in neutral there will be no problems with the gearbox.

 

[juicyzackk]

If that is the case you lost loads.... you'll have to put at least the bare minimum in there... to run it especially if it's an automatic. But if it's a manual... just start it as long as you keep it in neutral there will be no problems with the gearbox.

yea its a dsg, what would be the bare min?

 

[NHN]

Do.not start that car without doing a full box oil service, you could trash the box.

I've said it already, you can't possibly know what the bare minimum is as there's no way to measure the amount that's inside already, why this logic is still being put forward defies common sense.

It's a simple maths question, take the risk & damage the box or do a full box service then test, which would cost less & give you more peace of mind, imho if you choose the former, then you're mad.

I have a similar story on an A3 that I believe has a box cooler leak of the coolant into the oil, so unfortunately I'll have to do a full service to flush then empty then do again, not cheap but a box is far more.

 

[northpole]

DSG = AUTOMATIC....dsg box needs 4.5l of oil if fully empty. So fill it up first without starting. Oil can be put in cold but in that case only fill up with 4.5l. That is the bare minimum... for the box to operate without causing damage. Whatever is extra will come flowing out.

The person above already new you had a dsg I didn't know otherwise I would have said the same as he did.

Do NOT start it without oil period, the plates always rotate regardless of it being in neutral or park.

 

[juicyzackk]

Do.not start that car without doing a full box oil service, you could trash the box.

I've said it already, you can't possibly know what the bare minimum is as there's no way to measure the amount that's inside already, why this logic is still being put forward defies common sense.

It's a simple maths question, take the risk & damage the box or do a full box service then test, which would cost less & give you more peace of mind, imho if you choose the former, then you're mad.

I have a similar story on an A3 that I believe has a box cooler leak of the coolant into the oil, so unfortunately I'll have to do a full service to flush then empty then do again, not cheap but a box is far more.

Got it, i already was skeptical and was not going to turn it on without full oil change, i wouldnt risk it but i thought it wont hurt to learn more from you guys. thanks for your feedback i truly appreciate.

 

[juicyzackk]

DSG = AUTOMATIC....dsg box needs 4.5l of oil if fully empty. So fill it up first without starting. Oil can be put in cold but in that case only fill up with 4.5l. That is the bare minimum... for the box to operate without causing damage. Whatever is extra will come flowing out.

The person above already new you had a dsg I didn't know otherwise I would have said the same as he did.

Do NOT start it without oil period, the plates always rotate regardless of it being in neutral or park.

Yes i will not. the plates always rotating regardless of it being in neutral or park was the nugget i was trying to know. for sure not taking any risks. thank you for your feedback.