ZF 6HP transmission
6HP is ZF Friedrichshafen AG's trademark name for its six-speed automatic transmission models (6-speed transmission with Hydraulic converter and Planetary gearsets) for longitudinal engine applications, designed and built by ZF's subsidiary in Saarbrücken. Released as the 6HP26 in 2000, it was the first six-speed automatic transmission in a production passenger car. Other variations of the first generation 6HP in addition to the 6HP26, were 6HP19, and 6HP32 having lower and higher torque capacity, respectively. In 2007, the second generation of the 6HP series was introduced, with models 6HP21 and 6HP28. A 6HP34 was planned, but never went into production.
|Production||2000 – 2014|
|Model years||2000 - 2014|
|Body and chassis|
|Class||6-Speed Longitudinal Automatic Transmission|
|Related||Aisin AWTF-80 SC Transmission Ford 6R Transmissions GM 6L50 Transmission GM 6L80 Transmission|
|Predecessor||ZF 5HP Transmission|
|Successor||ZF 8HP Transmission|
The 6HP uses a Lepelletier epicyclic/planetary gearset, which can provide more gear ratios with significantly fewer components. This means the 6HP26 is actually lighter than its five-speed 5HP predecessors. It also has the capability to achieve torque converter lock-up on all six forward gears, and disengage it completely when at a standstill, dramatically closing the fuel efficiency gap between automatic and manual transmissions.
The last 6HP automatic transmission was produced by the Saarbrücken plant in March 2014 after 7,050,232 units were produced. The ZF plant in Shanghai continued to produce the 6HP for the Chinese market.
All ZF 6HP gearboxes have the same gear ratios as the 6R60 and 6R80 gearboxes for passenger cars from Ford have. Deviant gear ratios indicate another manufacturer.
The 6HP is the first transmission designed according to ZF's new paradigm. After gaining additional gear ratios only with additional components, this time the number of components has to decrease for the first time in spite of the necessity of even more ratios. Coming from 5 gear ratios made of 10 main components (gear sets, Ravigneaux considered as 2, brakes, clutches) to the 6 made of 8 now reflects, what major progress the Lepelletier gear mechanism means compared to conventional designs like the 5HP-family.
|Planetary Gearset: Teeth||Count||Total||Avg.|
Problems with this transmission are well known. This transmission locks up the torque converter in all gears, increasing wear. Combined with a sealed transmission pan and "lifetime fluid", some people have experienced catastrophic transmission failure. Owners report shift issues when oil begins breaking down beyond 50K miles, hence shifting issues are common.
There are also problems with the valve block and solenoids. When this failure starts to occur, shift quality and speed, torque transfer and even loss of ability to engage gears can occur. These problems led Volkswagen AG to extend the warranty on all of their vehicles equipped with this transmission to 100,000 miles or 10 years.
The 6HP19 transmission was a development of the original 6HP26, but was downgraded for less demanding applications. As such, the 6HP19 is rated at 400 N⋅m (295 lb⋅ft) of torque.
Applications Rear-wheel drive cars:
- BMW X3
- BMW 520i (E60)
- BMW 530i, (E60)
- BMW 630i, (E63)
- BMW 730i/li, (E65/E66)
- BMW 318i, 320i, 325i, 328i, 330i (E9X), pre-LCI
- BMW 116i, 118i, 120i (E87), pre-LCI, 135i (E82)
- BMW Z4 E85 LCI, E86
- Hyundai Genesis Coupe - 2010-2012 3.8L
- Audi (B6) S4 (Typ 8E/8H)
- Audi (B7) S4 (Typ 8E/8H)
- VW Phaeton (Typ 3D)
- Audi A6 (Typ C6/4F) 3.0 TDI / 3.2 FSI / 3.0 TFSI
- Audi A8 (Typ D3/4E) 3.0 TDI / 3.2 FSI
The 6HP26 was the original variation of the 6HP, released in 2000. It was rated for a maximum input torque of 600 newton metres (443 lbf⋅ft). It was first used by the BMW 7 Series (E65) in 2001. Initially reserved for high end luxury and sports cars, ZF made the 6HP26 available to Hyundai for use on its 2009 model year V8 Genesis.
Several versions of the 6HP26 are available depending on application and brand: 6HP26, 6HP26A and 6HP26X.
Two-wheel drive version:
- 2001–2008 BMW 7 Series (E65) 735i, 745i, 760i, 730d and 740d
- 2002–2005 Jaguar XK8/XKR (X100)
- 2003–2012 Aston Martin DB9
- 2003–2010 BMW 5 Series (E60)
- 2003–2010 BMW 6 Series (E63) (Pre-LCI models, 645i / 650i / 635d)
- 2009–2012 Hyundai Genesis Sedan (4.6L V8)
- 2003–2008 Jaguar S-Type
- 2003–2009 Jaguar XJ (X350)
- 2003–2012 Rolls-Royce Phantom
- 2005–2011 BMW 3 Series (E90)
- 2005–2016 Ford Falcon (BF, FG, FG X turbocharged inline-six and V8) Although production of the transmission ended in 2014, Ford retained sufficient inventory to last until end of Falcon production in 2016.
- 2005–2014 Ford Territory (SY AWD; SZ petrol)
- 2006–2010 Jaguar XK/XKR (X150)
- 2007–2013 BMW X5 (E70), except 40d model
- 2007–2012 Maserati Quattroporte
- 2007–present Rolls-Royce Phantom Drophead Coupé
- 2008–2012 Aston Martin DBS V12
- 2008–2012 BMW 7 Series (F01), except 740d xDrive, 760i/Li and Hybrid 7
- 2008–2011 Kia Mohave
- 2008–2012 Jaguar XF (X250)
- 2006–2009 Bentley Arnage
- 2008–2011 Bentley Brooklands
- 2010–2014 Aston Martin Rapide
- 2011 Hyundai Equus
- 2011-2012 Aston Martin Virage
- 2012-2014 Aston Martin Vanquish
The 6HP26A is a variation of the 6HP26 for four-wheel drive applications. It was used by the Volkswagen Group for some permanent four-wheel drive models.
- 2002–2016 Volkswagen Phaeton (Typ 3D)
- 2003–2009 Audi A8 (D3, Typ 4E)
- 2006–2009 Audi S8 (D3, Typ 4E)
- 2003–present Bentley Continental GT
- 2005–present Bentley Continental Flying Spur
- 2006–2011 Audi S6 (C6, Typ 4F)
- 2008–2010 Audi RS6 (C6, Typ 4F)
6HP26X & 6HP26ZEdit
The 6HP26X and 6HP26Z is another variation of the 6HP26, also for four-wheel drive applications. This transmission is suitable for 4WDs with a separate transfer box (the "X" stands for external 4WD).
- 2006–2013 Range Rover, all with Jaguar type engines or TDV8
- 2006–2013 Range Rover Sport, 4.4- and 5.0-litre AJV8 models
- 2005–2013 Land Rover Discovery
- 2007 BMW X3 (E83) 3.0d (some models)
- 2005–2011 BMW 330d (E90/91) Xdrive
- 2004–2006 BMW X5 (E53) V8 (6PH26Z)
- BMW E65 745d (LCI)
- Volkswagen Phaeton 5.0 V10 TDi (6HP-32A, internal 4x4)
The 6HP21 was a variation of the 6HP apparently produced in China. It is also alternatively known as 6HP19tu and 6HP19z.
- 2014–2016 Ford Falcon (FG X naturally-aspirated inline-six, turbocharged inline-six and supercharged V8 )
- 2014–2016 Ford Territory (SZ II petrol)
- 2010-2012 BMW 320d Lci (Thailand) (Engine N47D20)
- 2006-2012 BMW 335i (E9X)
The 6HP28 was the second generation of the 6HP gearbox, introduced in mid-2006.
Applications Two-wheel drive version:
- "More than Seven Million: ZF Ends Production of Successful 6-Speed Automatic Transmission" (Press release). ZF Friedrichshafen. 31 March 2014. Retrieved 2 August 2016.
- "Review: Ford FG X Falcon (2014–16)". AustralianCar.Reviews. Retrieved 2 August 2016.
- Markus, Frank (November 2001). "BMW 745i – First Drive Review". Car and Driver. Archived from the original on 18 September 2014.
- "2003 model year XK service training technical guide" (PDF). Jaguar Cars North America. 30 September 2002. p. 4. Archived from the original (PDF) on 8 January 2016.
- Crawford, Anthony (25 July 2007). "2007 Aston Martin DB9 Coupe Road Test". CarAdvice. Retrieved 13 September 2016.
- "Aston Martin Automatic Gearboxes". JT Automatics Ltd. Archived from the original on 25 April 2016.
- "Review: Ford BF Falcon (2005–10)". AustralianCar.Reviews. Retrieved 2 August 2016.
- "Review: Ford FG Falcon (2008–14)". AustralianCar.Reviews. Retrieved 2 August 2016.
- "Review: Ford SY Territory (2005–11)". AustralianCar.Reviews. Retrieved 2 August 2016.
- "Review: Ford SZ Territory (2011–16)". AustralianCar.Reviews. Retrieved 2 August 2016.
- "ZF 6HP26 Transmission" (PDF). Retrieved 2017-02-02.