For the 8-speed automatic transmission, ZF set out to design and develop an entirely new gear set concept. The result is a revolution in transmission design: a transmission concept with 4 gearsets which requires only 5 shift elements – of which only two are open in any given gear. The 8HP also requires no more than 3 multi-disk clutches and 2 brakes, which allows it to achieve a greater degree of efficiency than other concepts. As a result of the fact that only 2 shift elements are open per gear, drag losses in the transmission are sustainably reduced. This effect is supported by the use of a new parallel-axis vane-type oil pump. 4 A torque range from 300 to 1000 newton meter makes the 8HP the perfect partner for all rear-wheel-drive and all-wheel-drive designs. From the lower midsize segment to sporty luxury cars, and in every type of SUV and offroad vehicle – its revolutionary design is always an efficient and economical solution. Although the 8HP features 2 more speeds than the extremely successful 6HP, the dimensions have remained unchanged and the weight was even reduced by 3% to 87 kg (transmission modular system 8HP70) including oil. At the same time, the total transmission ratio spread of 7.0 ensures that the engine is always in its optimum operating range. This translates into improved acceleration and reduced fuel consumption.

1. Bmw Gearbox 6 Speed
2. Bmw Gearbox Class Number
3. Bmw Gearbox Problems

• The other transmission choice is BMW’s quick-shifting seven-speed dual-clutch automatic, a $2900 option. Launch control is specific to the automatic, which also now incorporates BMW's three-mode.
• BMW used this transmission with M60 V8 models such as the European manual 840i, European manual 740i, 540i; as well as the M62 powered 5 series sedans, and S62 powered vehicles such as the Z8 and M5. 2 3 This gearbox was also used in the E34 M5, E36 M3, and E46 M3s with the S38B38, S50B32, and S54B32 engines respectively.

Based on a really successful product, it combines dynamics and comfort with improved efficiency – also with regard to the costs. And it is ideally equipped for even stricter fuel consumption and CO2 emission regulations. In the premium and mid-size car range, the optimized 8HP product family enables the average fuel consumption to be cut by another 3%. CO2 emissions decrease to the same extent. These potentials can also be completely transferred to hybrid drives. Incidentally, additional savings potential by a further optimized startstop function is not yet included here. To achieve these innovations, ZF engineers have optimized some details. Thus, the reduction of drag torques and engine speeds further reduced the already very low power losses. Essential success aspects are the higher transmission ratio spread and the reduction of system pressures in many areas. Another factor is the multidisk separation of the brakes. Furthermore, advanced torsional vibration dampers enable a faster bypassing of the hydrodynamic power transmission and therefore further reduction in speed. Thus, the new 8HP is perfectly prepared for use with the new engines (3-8 cylinders) which will determine the trend of the years-to-come.

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.

BMW M’s DCT (Dual-Clutch Transmission) was one that had almost no critics. Fans who owned M cars with the DCT absolutely loved it for its rapid-fire shifts, ease of use in traffic and added theater.

The 6HP uses a Lepelletierepicyclic/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.^[1][2] The ZF plant in Shanghai continued to produce the 6HP for the Chinese market.^[1]

Specifications[edit]

Preliminary Note[edit]

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 as shown in the template.

New Paradigm[edit]

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.

Technical Data[edit]

Technical imperfections[edit]

Problems with this transmission are well known^{[citation needed]}. 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^{[citation needed]}.

There are also problems with the valve block and solenoids^{[citation needed]}. 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^{[citation needed]}.

First generation[edit]

6HP19[edit]

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.

ApplicationsRear-wheel drive cars:

• BMW 520i (E60)
• BMW 528i (E60)
• BMW 530i, (E60)
• BMW 630i, (E63)
• BMW 730i/li, (E65/E66)
• BMW 318i, 320i, 325i, 328i, 330i, 335i (E9X), pre-LCI
• BMW 116i, 118i, 120i (E87), pre-LCI, 135i (E82), 118d (E81)
• Hyundai Genesis Coupe - 2010-2012 3.8L

6HP19A[edit]

The 6HP19A is a variation of the 6HP19 for four-wheel drive applications torque of 600 newton metres (443 lbf⋅ft). It was used by the Volkswagen Group for some permanent four-wheel drive models.

Applications

• Audi (B6) A4/S4 (Typ 8E/8H)
• Audi (B7) A4/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

6HP26[edit]

Bmw Gearbox 6 Speed

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 only used by premium brands, it was later available on the 2009 model year V8 Hyundai Genesis.

Several versions of the 6HP26 are available depending on application and brand: 6HP26, 6HP26A and 6HP26X.

ApplicationsFord has developed their own versions (6R60 and 6R80) based on the 6HP26. Therefore, certain Ford vehicles will not be listed.

Two-wheel drive version:

• 2001–2008 BMW 7 Series (E65)^[3] 735i, 745i, 760i, 730d and 740d
• 2002–2005 Jaguar XK8/XKR (X100)^[4]
• 2003–2012 Aston Martin DB9^[5][6]
• 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,^[7]FG,^[8]FG X turbocharged inline-six and V8)^[2] Although production of the transmission ended in 2014, Ford retained sufficient inventory to last until end of Falcon production in 2016.^[2]
• 2005–2014 Ford Territory (SY AWD;^[9] SZ petrol)^[10]
• 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^[6]
• 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^[6]
• 2011 Hyundai Equus
• 2011-2012 Aston Martin Virage
• 2012-2014 Aston Martin Vanquish

6HP26A[edit]

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.

Applications

• 2002–2016 Volkswagen Phaeton (Typ 3D)
• 2003–2009 Audi A8 (D3, Typ 4E)
• 2006–2009 Audi S8 (D3, Typ 4E)
• 2003–2011 Bentley Continental GT
• 2005–2013 Bentley Continental Flying Spur
• 2006–2011 Audi S6 (C6, Typ 4F)
• 2008–2010 Audi RS6 (C6, Typ 4F)

6HP26X & 6HP26Z[edit]

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).

Applications

• 2006–2013 Land Rover Range Rover (All with Jaguar type engines or TDV8)
• 2006–2013 Land Rover Range Rover Sport (4.4-litre and 5.0-litre AJV8 models)
• 2005–2009 Land Rover Discovery 3 (LR3 in North America)
• 2010–2013 Land Rover Discovery 4 (LR4 in North America)
• 2007 BMW X3 (E83) 3.0d (some models)
• 2005–2011 BMW 330(x)d xDrive (E90/91)
• 2004–2006 BMW X5 (E53) V8 (6HP26Z)
• 2007 BMW 6 Series (e63/64)
• 2007-2010 BMW 5 series LCI(530d xdrive)
• 2003 BMW 7 series E65 745i

6HP32[edit]

The 6HP32 is a variation of the 6HP26 for high-output applications. The gearbox's maximum input torque is 750 N⋅m (550 lb⋅ft).^[11]

Bmw Gearbox Class Number

Applications

• BMW E65 745d (LCI)
• Volkswagen Phaeton 5.0 V10 TDi (6HP-32A, internal 4x4)

Second generation[edit]

6HP21[edit]

The 6HP21 was a variation of the 6HP produced in the PRC.^[2] It is also alternatively known as 6HP19tu and 6HP19z.

Bmw Gearbox Problems

Applications

• 2011-2014 Ford Falcon (FG2 turbocharged inline-four, naturally-aspirated inline-six, turbocharged inline-six and supercharge V8)
• 2014–2016 Ford Falcon (FG X turbocharged inline-four, naturally-aspirated inline-six, turbocharged inline-six and supercharged V8 )^[2]
• 2014–2016 Ford Territory (SZ II petrol)^[10]
• 2010-2012 BMW 320d Lci (Thailand) (Engine N47D20)
• 2011-2013 BMW 335is (E9X)

6HP28[edit]

The 6HP28 was the second generation of the 6HP gearbox, introduced in mid-2006.

ApplicationsTwo-wheel drive version:

• 2009–2012 Jaguar XF (X250)
• 2009-2014 Jaguar XK (X150)
• 2010-2012 Jaguar XJ (X351)
• 2010-2013 BMW E90 (LCI 335d)
• 2007-2009 BMW E60 (LCI Models: 535i, 540i, 550i)
• 2007-2010 BMW E63 (LCI Models: 635d, 650i)

Notes[edit]

1. ^no Lepelletier gear mechanism is applied · shown here to reflect the progress the Lepelletier gear mechanism means
2. ^inner and outer sun gear of the Ravigneaux planetary gearset are inverted

See also[edit]

References[edit]

1. ^ ^ab'More than Seven Million: ZF Ends Production of Successful 6-Speed Automatic Transmission' (Press release). ZF Friedrichshafen. 31 March 2014. Retrieved 2 August 2016.
2. ^ ^abcde'Review: Ford FG X Falcon (2014–16)'. AustralianCar.Reviews. Retrieved 2 August 2016.
3. ^Markus, Frank (November 2001). 'BMW 745i – First Drive Review'. Car and Driver. Archived from the original on 18 September 2014.
4. ^'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.
5. ^Crawford, Anthony (25 July 2007). '2007 Aston Martin DB9 Coupe Road Test'. CarAdvice. Retrieved 13 September 2016.
6. ^ ^abc'Aston Martin Automatic Gearboxes'. JT Automatics Ltd. Archived from the original on 25 April 2016.
7. ^'Review: Ford BF Falcon (2005–10)'. AustralianCar.Reviews. Retrieved 2 August 2016.
8. ^'Review: Ford FG Falcon (2008–14)'. AustralianCar.Reviews. Retrieved 2 August 2016.
9. ^'Review: Ford SY Territory (2005–11)'. AustralianCar.Reviews. Retrieved 2 August 2016.
10. ^ ^ab'Review: Ford SZ Territory (2011–16)'. AustralianCar.Reviews. Retrieved 2 August 2016.
11. ^'ZF 6HP26 Transmission'(PDF). Retrieved 2017-02-02.