Question on tranny fluid change ...

ryoung · 01-03-2004, 05:47 PM

The procedures on audipages and in the ZF 5HP24A technical information pdf call for running the tranny thru RND432 a few seconds each with the engine idling and then rechecking fluid level.

I can see how Reverse, Neutral, and Drive (1st) can get the juices flowing thru different passages, but not 432 (or 5th). With the motor idling, doesn't the tranny just stay in first whether in D43 or 2? In Tip mode, you can't get out of 1st with the motor idling.

The ZF pdf also mentions using "step shift (manual winter program) to shift thru to 3rd gear". Is this some VAG tool to force shifts at idle? Without it, it seems you'd have to actually drive the car to run thru all the gears before rechecking fluid levels (after the tranny cools for a few hours).

PaulW · 01-03-2004, 05:51 PM

But at least driving it through park, reverse, nutral, and drive will get most of the hydraulic passageways filled with ATF. But it won't shift out of first, so there are a few solenoid valve hydraulic passageways that won't get fluid through them I would guess.

pw

skiwi · 01-04-2004, 12:21 AM

so the gear changes cause the tranny to change gears, and exercise all the solenoids & pressure valves...

A8L_Driver_Dan · 01-04-2004, 02:24 PM

Tomorrow I'm scheduled to have the transmission fluid and filter changed at the dealer. I was going to do it, but when I contacted Wendy she told me that aftermarket tranny kits are not yet ready for 2000's. So instead of going to the dealer to get the parts (at stealer pricing) then freezing my tail off in the garage, I just decide to have them do the whole thing. I know "Bak bak BAAAKK"!

Anyways, you guys mentioned someplace earlier that I should save some of the used fluid for testing somewhere...anybody remember where to send this and why we want to do this? How much should I ask for them to save?

Thanks.

Karpedmman · 01-04-2004, 04:33 PM

bpower1 · 01-04-2004, 05:31 PM

both ntc dealers i've spoken to didn't leave me with much confidence when i asked about trans filter/oil change; don't recommend it, don't do them often, etc.

thanks

A8CT · 01-05-2004, 05:44 AM

BongoCruiser · 01-05-2004, 09:19 AM

and now 6 days later it is done. After rescheduling once before for parts not in stock they drained my fluid only to find they had the wrong gasket. If it wasn't for the complicated procedure to run through the gears, check the temperature, and recheck the level I would never have gone to the dealer. I'm not even allowed to talk to the mechanic to inquire about the amount of metal on the magnets or to discuss the process. I have a lot more trust in my usual family run shop.
Tomorrow I will post the cost and condition of this filter job. I'm sorry I didn't provide the parts myself.

01-03-2004, 05:51 PM	#2
PaulW AudiWorld Super User Garage is empty, add now Join Date: Jul 2001 Posts: 18,202	I've thought about that too....can't come up with a good answer But at least driving it through park, reverse, nutral, and drive will get most of the hydraulic passageways filled with ATF. But it won't shift out of first, so there are a few solenoid valve hydraulic passageways that won't get fluid through them I would guess. pw __________________ 07 S8

01-04-2004, 12:21 AM	#3
skiwi AudiWorld Senior Member 2008 Audi RS6 Join Date: Mar 2003 Posts: 1,184	the zf documentation assumes that the vehicle is on a hoist so the gear changes cause the tranny to change gears, and exercise all the solenoids & pressure valves... __________________ dave '03 rs6 '04 allroad tdi

01-04-2004, 02:24 PM	#4
A8L_Driver_Dan New Member Garage is empty, add now Join Date: Nov 2003 Posts: 149	Chickened out...having the dealer do the fluid/filter change Tomorrow I'm scheduled to have the transmission fluid and filter changed at the dealer. I was going to do it, but when I contacted Wendy she told me that aftermarket tranny kits are not yet ready for 2000's. So instead of going to the dealer to get the parts (at stealer pricing) then freezing my tail off in the garage, I just decide to have them do the whole thing. I know "Bak bak BAAAKK"! Anyways, you guys mentioned someplace earlier that I should save some of the used fluid for testing somewhere...anybody remember where to send this and why we want to do this? How much should I ask for them to save? Thanks. __________________ 2000 A8L Cashmere K40 Undetectable - Dual Radar Detectors Black Widow - Laser Detection

01-04-2004, 04:33 PM	#5
Karpedmman Junior Member Garage is empty, add now Join Date: Apr 2003 Posts: 525	That is the way I understand the PDF as well.

01-04-2004, 05:31 PM	#6
bpower1 Audiworld Junior Member Garage is empty, add now Join Date: Jan 2003 Posts: 501	let me know which dealer you go ti both ntc dealers i've spoken to didn't leave me with much confidence when i asked about trans filter/oil change; don't recommend it, don't do them often, etc. thanks __________________ bpower1 New York, NY 2001 Audi S8 1989 Ford Bronco 1965 Shelby Cobra (Superformance)

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01-05-2004, 05:44 AM	#7
A8CT AudiWorld Super User Garage is empty, add now Join Date: May 2003 Posts: 3,131	well, I guess that's a deterent for us 2000 guys huh ? Guess I'll do the same... __________________ 2005 Audi A8L 2000 A8, silver/blk, all options

01-05-2004, 09:19 AM	#8
BongoCruiser AudiWorld Member Garage is empty, add now Join Date: Apr 2003 Posts: 172	Mine is getting a new filter today. I took it to the dealer last Tuesday and now 6 days later it is done. After rescheduling once before for parts not in stock they drained my fluid only to find they had the wrong gasket. If it wasn't for the complicated procedure to run through the gears, check the temperature, and recheck the level I would never have gone to the dealer. I'm not even allowed to talk to the mechanic to inquire about the amount of metal on the magnets or to discuss the process. I have a lot more trust in my usual family run shop. Tomorrow I will post the cost and condition of this filter job. I'm sorry I didn't provide the parts myself.

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