Who makes the auto transmission, ZF, Getrag, General Motors?
02-10-2011, 09:03 AM
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My Ride: 2009 535i X Drive (current)
2008 335Xi Coupe (retired)
2005 X3
I'm new to the E60 having just purchased a CPO'd 2009 535i X Drive w/ 24K miles 2 weeks ago. I don't know about the E60 transmission wise but I know on the E90 3's, the 328 uses a GM transmission & the 335 uses a ZF, one of the additional reasons (besides the N54 motor) that I went with the 335 over the 328. I'm not going to spend $50K on a BMW and get a GM transmission if I can help it.
jkz
jkz
02-10-2011, 09:37 AM
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My Ride: 2008 550i (E60) - Titanium Silver | Black Dakota w/ Bamboo Anthracite | Sports Package | Premium Package | Steptronic | Navigation | Logic 7
Former:
1995 540i MSport (E34) - 6sp, B&M Short Shift | Dinan Intake | Dinan Exhaust | Dinan Chip
1987 325iC (E30) - sold
Interesting to note from wikipedia, "the ZF 6HP26 itself is rated for a maximum input torque of 600 newton metres (443 ft·lbf)".
02-10-2011, 09:45 AM
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My Ride: 07 E61 530d M-Sport.
BMW use various different versions in their cars. I know you don't the diesels over there but they are the ones I can compare. The 530d and 535d have transmissions rated up to 600nm, the lower diesel engines (525d and 520d) get a transmission rated to 400nm. I would imagine the V8s would get the heavier transmission and the 6 cylinder petrols the 400nm one but I don't know that for sure.
02-10-2011, 09:57 AM
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My Ride: 2004 E61 530D - Dynamic Drive - Active Front Steering Sport Seats - Voice Control - Head Up Display - Nav Pro - Bluetooth - Panoramic roof - Front/rear heated seats
Bimmerfest:
- GA6HP19Z (designed for maximum torque of 400 Nm)
- GA6HP19Z TU (designed for maximum torque of 400 Nm)
- GA6HP26Z (designed for maximum torque of 600 Nm)
- GA6HP26Z TU (designed for maximum torque of 650 Nm)
- GA6HP32Z (designed for maximum torque of 750 Nm)
- GA6HP19Z (designed for maximum torque of 400 Nm)
- GA6HP19Z TU (designed for maximum torque of 400 Nm)
- GA6HP26Z (designed for maximum torque of 600 Nm)
- GA6HP26Z TU (designed for maximum torque of 650 Nm)
- GA6HP32Z (designed for maximum torque of 750 Nm)
02-10-2011, 10:10 AM
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My Ride: 07 E61 530d M-Sport.
They are max the transmissions are designed for and not all are built to the max spec. The 6hp26z in the 520/525d is only rated for 400nm.
02-10-2011, 11:12 AM
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My Ride: 2004 E61 530D - Dynamic Drive - Active Front Steering Sport Seats - Voice Control - Head Up Display - Nav Pro - Bluetooth - Panoramic roof - Front/rear heated seats
02-10-2011, 11:26 AM
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My Ride: 07 E61 530d M-Sport.
I really don't know TBH. I only know the box is rated lower because alot or remapers warn of going to high on those cars. It's been discussed on UK forums a fair bit but I've never seen anything to show the actual differences.
02-10-2011, 12:10 PM
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Like has been said, BMW has used a mixture of ZF and GM transmissions in several BMW models. Most notably, the 3 series. My '99 E46 ( B25TU) had a GM transmission and my '00 E46 (B25TU) came with a ZF transmission. Generally, the GM transmissions have a higher torque rating than the ZF and are considered a little more durable. However, the concensus seems to be that the ZF boxes exhibit a better shift quality. Recently, BMW has slashed the quantities of transmissions purchased from GM (GM boxes are made in France).