100k miles, need to change transmission oil??
10-26-2016, 08:13 AM
#41
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Read the whole thread. There is no lifetime fluid on planet earth, brake, coolant, ATF or otherwise. The detergents break down, contamination increases.
I had to buy a new radiator because my old one plugged up. Why? Because "it is a sealed unit with lifetime coolant"... almost killed my dealership... told them that I want it drained refilled on a regular basis. Would not have happened if they had changed it.
I've heard the horror stories about changing the ATF, oh you will dislodge stuff and make it worse.
BS.
Change it.
Greg
I had to buy a new radiator because my old one plugged up. Why? Because "it is a sealed unit with lifetime coolant"... almost killed my dealership... told them that I want it drained refilled on a regular basis. Would not have happened if they had changed it.
I've heard the horror stories about changing the ATF, oh you will dislodge stuff and make it worse.
BS.
Change it.
Greg
10-26-2016, 08:20 AM
#42
AudiWorld Super User
Search for procedure. Been documented. Also on ZF website for the six speed. 2000 era Audis were 5 speeds, then normally aspirated V6's didn't push them. In V8 implementations they "reliably" failed at about 100K. BTDT, personally. C5 and D2 board are littered with examples all over the broken down road for the 4.2's.
Per Audi (though not ZF exactly), the fluid is definitely lifetime. Absolutely. Especially in the new car brochures and make believe cost of ownership calcs. some like BMW like to market. 100% lifetime if that wasn't clear. No doubt about it. The life of the transmission, and not one mile or km less or more. Same on coolant. Same on steering. Same on fuel filter. Same on diffs. Connect the dots...
Per Audi (though not ZF exactly), the fluid is definitely lifetime. Absolutely. Especially in the new car brochures and make believe cost of ownership calcs. some like BMW like to market. 100% lifetime if that wasn't clear. No doubt about it. The life of the transmission, and not one mile or km less or more. Same on coolant. Same on steering. Same on fuel filter. Same on diffs. Connect the dots...
Last edited by MP4.2+6.0; 10-26-2016 at 11:30 AM.
10-26-2016, 03:26 PM
#43
AudiWorld Super User
Anyone here remember Eon Motor Oil from the early-mid '70's?
The radio ad jingle went something like: If it were up to Eon, you'd never have to change, change, change, your oil again...
They weren't around for long.
I'm not allowed to post about my A8's transmission fluid......
10-27-2016, 05:28 AM
#44
AudiWorld Wiseguy
Before you feel compelled to regail us with your tale, we all know you've made several return trips to the moon at an average speed of over 180mph and you're still on the factory fill ATF and filter. 
Goes to show that the 6HP can be neglected and still not fail.
However if you did ever decide to do an ATF and filter change, you would be amazed at how rough and sloppy shifting your trans had become.
After only 80k miles and 10 years on my '04, an ATF (Redline D6) and filter change gave a marked performance improvement.
Goes to show that the 6HP can be neglected and still not fail.
However if you did ever decide to do an ATF and filter change, you would be amazed at how rough and sloppy shifting your trans had become.
After only 80k miles and 10 years on my '04, an ATF (Redline D6) and filter change gave a marked performance improvement.
Last edited by dvs_dave; 10-27-2016 at 12:14 PM.
10-27-2016, 06:14 AM
#45
AudiWorld Senior Member
Im right at 80k miles on our 08 S8.
plan on changing trans fluid with Mercon SP
ATF Transmission Fluid Mercon SP, XT-6-QSP, Motorcraft
necessary to do filter as well? or jsut drain, fill, run a bit, and repeat?
plan on changing trans fluid with Mercon SP
ATF Transmission Fluid Mercon SP, XT-6-QSP, Motorcraft
necessary to do filter as well? or jsut drain, fill, run a bit, and repeat?
10-27-2016, 07:23 AM
#46
AudiWorld Super User
Not sure I would be brave enough to use Mercon SP. Lifeguard 6 is expensive but much cheaper than a new transmission. I think I would consider Redline D6 before the Mercon.
10-27-2016, 07:33 AM
#47
AudiWorld Senior Member
mercon SP is the exact same Shell product M-1375.4
ZF doesn't make fluid. Neither does Ford/Mercon. They contract a petroleum company to make it to their desired specs.
Lifeguard6 = Mercon SP?
edit: im not saying im convinced, but IMO-the best oil is the one that is changed frequently.
also found this on vwvortex. I cant find the source but the way it is written sounds like an OEM type of document.
Also, 05+ lincon navigator use 6HP26 transmission. Factory fill...Mercon SP...
According to VAG, an important attribute of the Libeguard 6 is the friction coefficient characteristics required for the TCC regulator (lockup clutch is designed to slip while driving instead of just closed or open). Without these modifiers, it can slip too much, or grab and shudder or just make a moaning noise........
Oil and lubrication system
46.
To ensure TCC durability and a long service life, the new ATF G 055 005 A2; Shell ATF M-1375.4 was specially developed to suit the exacting requirements involved. ((Mercon SP conforms to M-1375.4, which is also ZF Spec TE-ML11))
ATF has to meet with the highest requirements in terms of gearshift quality and reliability and has a crucial influence on the coefficient of friction of a clutch/brake.
In addition to lining quality and friction materials, the following factors govern the coefficient of friction:
– Gear oil (grade, ageing, wear) – Gear oil temperature
– Clutch temperature
– Clutch slip
General
Optimisation of a wide range of details and technical concepts resulted in enhanced gearbox efficiency:
– The fact that there are only five selector elements reduces the friction torque in the clutches with no power transmission.
– A new, optimised gear oil with lower viscosity particularly at low gearbox temperatures reduces the friction loss.
– Improved internally geared oil pump with smaller delivery volume and reduced leakage.
– Optimisation of oil supply with reduced leakage in hydraulic control system.
– Increase in gearing efficiency to greater than 99% through optimisation of gear trains.
– Increase in permissible friction power of controlled torque converter clutch, thus extending the operating range (for more details, refer to Page 34 onwards).
– The "stationary vehicle decoupling" function reduces engine output when the vehicle is stopped with a gear engaged by interrupting power transmission. In addition to reducing consumption, ride comfort is enhanced due to the fact that less braking force is required (for more details refer to Part 2 SSP 284, Page 30 onwards).
ZF doesn't make fluid. Neither does Ford/Mercon. They contract a petroleum company to make it to their desired specs.
Lifeguard6 = Mercon SP?
edit: im not saying im convinced, but IMO-the best oil is the one that is changed frequently.
also found this on vwvortex. I cant find the source but the way it is written sounds like an OEM type of document.
Also, 05+ lincon navigator use 6HP26 transmission. Factory fill...Mercon SP...
According to VAG, an important attribute of the Libeguard 6 is the friction coefficient characteristics required for the TCC regulator (lockup clutch is designed to slip while driving instead of just closed or open). Without these modifiers, it can slip too much, or grab and shudder or just make a moaning noise........
Oil and lubrication system
46.
To ensure TCC durability and a long service life, the new ATF G 055 005 A2; Shell ATF M-1375.4 was specially developed to suit the exacting requirements involved. ((Mercon SP conforms to M-1375.4, which is also ZF Spec TE-ML11))
ATF has to meet with the highest requirements in terms of gearshift quality and reliability and has a crucial influence on the coefficient of friction of a clutch/brake.
In addition to lining quality and friction materials, the following factors govern the coefficient of friction:
– Gear oil (grade, ageing, wear) – Gear oil temperature
– Clutch temperature
– Clutch slip
General
Optimisation of a wide range of details and technical concepts resulted in enhanced gearbox efficiency:
– The fact that there are only five selector elements reduces the friction torque in the clutches with no power transmission.
– A new, optimised gear oil with lower viscosity particularly at low gearbox temperatures reduces the friction loss.
– Improved internally geared oil pump with smaller delivery volume and reduced leakage.
– Optimisation of oil supply with reduced leakage in hydraulic control system.
– Increase in gearing efficiency to greater than 99% through optimisation of gear trains.
– Increase in permissible friction power of controlled torque converter clutch, thus extending the operating range (for more details, refer to Page 34 onwards).
– The "stationary vehicle decoupling" function reduces engine output when the vehicle is stopped with a gear engaged by interrupting power transmission. In addition to reducing consumption, ride comfort is enhanced due to the fact that less braking force is required (for more details refer to Part 2 SSP 284, Page 30 onwards).
Last edited by Greg5OH; 10-27-2016 at 08:13 AM.
10-27-2016, 12:04 PM
#48
AudiWorld Wiseguy
Mercon SP is the same stuff, maybe just dyed a different color. The "SP" refers to "Spirax" which is a brand name of Shell ATF's. M-1375.4 is the key specification that matters above all else, despite what the doom mongers and hand wringers say.
I've had Redline D6 in mine for a good while and 0000's of miles. The trans is still silent, beautifully smooth and slick shifting.
Lots more info here:
https://www.audiworld.com/forums/a8-...truth-2882676/
I've had Redline D6 in mine for a good while and 0000's of miles. The trans is still silent, beautifully smooth and slick shifting.
Lots more info here:
https://www.audiworld.com/forums/a8-...truth-2882676/
Last edited by dvs_dave; 10-27-2016 at 12:06 PM.
10-27-2016, 12:27 PM
#49
AudiWorld Super User
mercon SP is the exact same Shell product M-1375.4
ZF doesn't make fluid. Neither does Ford/Mercon. They contract a petroleum company to make it to their desired specs.
Lifeguard6 = Mercon SP?
edit: im not saying im convinced, but IMO-the best oil is the one that is changed frequently.
also found this on vwvortex. I cant find the source but the way it is written sounds like an OEM type of document.
Also, 05+ lincon navigator use 6HP26 transmission. Factory fill...Mercon SP...
According to VAG, an important attribute of the Libeguard 6 is the friction coefficient characteristics required for the TCC regulator (lockup clutch is designed to slip while driving instead of just closed or open). Without these modifiers, it can slip too much, or grab and shudder or just make a moaning noise........
Oil and lubrication system
46.
To ensure TCC durability and a long service life, the new ATF G 055 005 A2; Shell ATF M-1375.4 was specially developed to suit the exacting requirements involved. ((Mercon SP conforms to M-1375.4, which is also ZF Spec TE-ML11))
ATF has to meet with the highest requirements in terms of gearshift quality and reliability and has a crucial influence on the coefficient of friction of a clutch/brake.
In addition to lining quality and friction materials, the following factors govern the coefficient of friction:
– Gear oil (grade, ageing, wear) – Gear oil temperature
– Clutch temperature
– Clutch slip
General
Optimisation of a wide range of details and technical concepts resulted in enhanced gearbox efficiency:
– The fact that there are only five selector elements reduces the friction torque in the clutches with no power transmission.
– A new, optimised gear oil with lower viscosity particularly at low gearbox temperatures reduces the friction loss.
– Improved internally geared oil pump with smaller delivery volume and reduced leakage.
– Optimisation of oil supply with reduced leakage in hydraulic control system.
– Increase in gearing efficiency to greater than 99% through optimisation of gear trains.
– Increase in permissible friction power of controlled torque converter clutch, thus extending the operating range (for more details, refer to Page 34 onwards).
– The "stationary vehicle decoupling" function reduces engine output when the vehicle is stopped with a gear engaged by interrupting power transmission. In addition to reducing consumption, ride comfort is enhanced due to the fact that less braking force is required (for more details refer to Part 2 SSP 284, Page 30 onwards).
ZF doesn't make fluid. Neither does Ford/Mercon. They contract a petroleum company to make it to their desired specs.
Lifeguard6 = Mercon SP?
edit: im not saying im convinced, but IMO-the best oil is the one that is changed frequently.
also found this on vwvortex. I cant find the source but the way it is written sounds like an OEM type of document.
Also, 05+ lincon navigator use 6HP26 transmission. Factory fill...Mercon SP...
According to VAG, an important attribute of the Libeguard 6 is the friction coefficient characteristics required for the TCC regulator (lockup clutch is designed to slip while driving instead of just closed or open). Without these modifiers, it can slip too much, or grab and shudder or just make a moaning noise........
Oil and lubrication system
46.
To ensure TCC durability and a long service life, the new ATF G 055 005 A2; Shell ATF M-1375.4 was specially developed to suit the exacting requirements involved. ((Mercon SP conforms to M-1375.4, which is also ZF Spec TE-ML11))
ATF has to meet with the highest requirements in terms of gearshift quality and reliability and has a crucial influence on the coefficient of friction of a clutch/brake.
In addition to lining quality and friction materials, the following factors govern the coefficient of friction:
– Gear oil (grade, ageing, wear) – Gear oil temperature
– Clutch temperature
– Clutch slip
General
Optimisation of a wide range of details and technical concepts resulted in enhanced gearbox efficiency:
– The fact that there are only five selector elements reduces the friction torque in the clutches with no power transmission.
– A new, optimised gear oil with lower viscosity particularly at low gearbox temperatures reduces the friction loss.
– Improved internally geared oil pump with smaller delivery volume and reduced leakage.
– Optimisation of oil supply with reduced leakage in hydraulic control system.
– Increase in gearing efficiency to greater than 99% through optimisation of gear trains.
– Increase in permissible friction power of controlled torque converter clutch, thus extending the operating range (for more details, refer to Page 34 onwards).
– The "stationary vehicle decoupling" function reduces engine output when the vehicle is stopped with a gear engaged by interrupting power transmission. In addition to reducing consumption, ride comfort is enhanced due to the fact that less braking force is required (for more details refer to Part 2 SSP 284, Page 30 onwards).
05-09-2020, 05:27 PM
#50
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S4 B7 automatic transmission drain & refill?
I have a 2006 Audi S4 sedan automatic transmission with 135K miles & i don't see any records of the tranny being serviced. The transmission shifts fine but I want to drain & refill the fluid at a german specialist who quoted me at $350 just to drain & refill without changing any filters. If he replaces the filters then he would have to drop the pan and total out to $1,000. Anyways will my transmission still shift fine after the drain & refill? The car is a weekend car & isn't being driven as much.
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