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Discussion Starter · #1 ·
Okay so I decided to see what tranny I had on my E46 anyway so finally I took a digital camera and well extended my arm and took random pics till I found it hehe. Anyway this was the best shot out of the group. It's the label on the tranny 5hp19 which is made by ZF. Anyway the Z4's Use the 5hp19 as well so I dunno. I would think that there would be a software issue to work with.

 

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Wow same tranny in the Z4 your sure?

How can they get the Z4 to do 0-60 in only .1 seconds slower than a manual. We need some mototronics expert to extract the software then! I'd pay $500-700 to get 1 second taken off my 0-60 time!

Coldintake said:
Well,then I assume dinan would use the same tranny software?
 

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i think the tranny on the z4

has to do with its differntial which leads me to believe with a new diff the z4 could get much faster(the 6 speed)
 

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dame, thats too technical even for me.... wish that i was a bmw certified rocket scientist.. :confused:
 

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Here's something easy then

Check the life of your tranny fluid. This is of course when the tranny is up to normal operating temperatures. Driving for 15 minutes and idle for about 3minutes will bring it to normal operating temps:

The approximate life expectancy at various temperatures is as follows:


175°F 100,000 miles
195°F 50,000 miles
212°F 25,000 miles
235°F 12,000 miles
255°F 6,250 miles
275°F 3,000 miles
295°F 1,500 miles
315°F 750 miles
335°F 325 miles
355°F 160 miles
375°F 80 miles
390°F 40 miles
415°F Less than 30 minutes


This information clearly shows why transmission oil coolers and the various maintenance intervals are recommended for severe usage.

Above 300°F, the metals inside the transmission will warp and distort in varying degrees depending on the severity of overheat. Because this damage occurs and fluid life is so seriously impaired, rocking out of snow, mud or sand should never exceed a very few minutes.


lilherc79 said:
dame, thats too technical even for me.... wish that i was a bmw certified rocket scientist.. :confused:
 
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