Gearbox ZF 8HP90

The 8-speed automatic transmission ZF 8HP90 has been produced by the German concern since 2009 and is installed on particularly powerful BMW and Rolls-Royce models under its GA8HP90Z index. The modification of this gearbox for Audi A8, RS6, RS7 has many differences and is known as 0BL.

1st generation of the 8HP family: 8HP45, 8HP55, 8HP70, 8HP90.

Specifications

Production years since 2009
Type automatic transmission
Number of gears 8
Type of drive all wheel / rear
Engine volume, l up to 6.4
Torque output, Nm up to 1000
Recommended oil ZF Lifeguard Fluid 8
Oil capacity, liter 8.8
Replacing the oil every 50,000 km
Replacing the filter every 50,000 km
Gearbox lifespan, km ~250 000
Weight, kg 94 (146 – Audi 0BL modification)

Gear ratios ZF 8HP90

Using the example of a BMW 760Li 2014 with a 6.0 liter engine:

Main 2.813
1st 4.714
2nd 3.143
3rd 2.106
4th 1.667
5th 1.285
6th 1.000
7th 0.839
8th 0.667
Reverse 3.317

The transmission was installed on:

  • Audi A6 C7 (4G) in 2013 – 2018;
  • Audi A7 C7 (4G) in 2013 – 2018;
  • Audi A8 D4 (4H) in 2009 – 2017;
  • Bentley Continental GT 2 (3W) in 2011 – 2018;
  • Bentley Flying Spur 2 (4W) in 2013 – 2019;
  • Bentley Mulsanne 1 (3Y) in 2010 – 2020;
  • BMW 7-Series F01 in 2009 – 2015;
  • Dodge Challenger 3 (LC) since 2014;
  • Dodge Charger 2 (LD) since 2014;
  • Rolls-Royce Dawn 1 (RR6) in 2015 – 2022;
  • Rolls-Royce Ghost 1 (RR4) in 2009 – 2020;
  • Rolls-Royce Wraith 1 (RR5) in 2013 – 2022.

Disadvantages of the ZF 8HP90 gearbox

  • This is a reliable and durable automatic transmission, but it comes with very powerful engines.
  • From aggressive driving, the solenoids quickly become clogged with friction wear products.
  • Wear of the torque converter clutches causes vibration and destruction of the oil pump bearing.
  • With frequent acceleration, the aluminum parts of the mechanical part of the gearbox cannot withstand.
  • Another weak point of the automatic transmission of this line is the rubber gaskets and bushings.

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