AUTOMATIC

Automatic Gearbox Types

Automatic gearboxes in this respect refer to a standard automatic, utilising a Torque Converter. There are many different types utilised the the VAG range. We will concentrate on the ZF 6HP and 8HP as they have mechatronics units that can be tuned to change various behaviours of the gearbox operation.

6 Speed

ZF 6HP - 09L / 0AT / 0B6 / 0BQ / 09E

These gearboxes belong to the category of conventional multi-step automatic gearboxes having a torque converter. They are based on the same design and functional features, and derive from the gearbox line of systems supplier ZF Getriebe GmbH.

They have the following features in common:

Torque converter with lockup clutch

Lepelletier planetary gearset concept (for 6 forward gears and 1 reverse gear using only 5 shift devices)

Electro-hydraulic control by means of mechatronics integrated in the gearbox

Ratio spread and gear ratio steps

Dynamic Shift Program (DSP) – tiptronic function and sport program

6HP-19A / AL420-6Q / 09L

Longitudinally mounted gearbox and four-wheel drive, integrated centre differential and front axle drive.

Self-locking centre differential with dynamic torque split (in a basic ratio of 50/50 or 40/60 dependent on version).

Rated torque holding of 500 Nm

The 09L gearbox was first used on the Audi A6 (4F C6) and is fitted to the Audi A4 (B6, B7), Audi A6 (C6) and Audi A8 (D3).

6HP-19X / AL420-6A / 0AT

Longitudinally mounted gearbox and transfer case combination

Rated torque holding of 360 Nm

The 0AT gearbox is used exclusively on the Audi Q7 (4L) with 3.6 FSI engine.

6HP-26 A61 / AL600-6Q / 09E

Longitudinally mounted gearbox and four-wheel drive, integrated centre differential and front axle drive on the upstream side of the torque converter.

Self-locking centre differential with dynamic torque split (in a basic ratio of 50/50 or 40/60 dependent on version).

Rated torque holding of 700 Nm

Initially, the 09E gearbox was exclusively designed for use on the Audi A8 (4E D3). A revised version of the gearbox was later used on the Audi S6 and Audi RS6 (C6) too.

6HP-28AF / AL651-6Q / 0B6

Longitudinally mounted gearbox and four-wheel drive, integrated centre differential and front. The axle drive is on the upstream side of the torque converter

Self-locking centre differential with 40/60 front-to-rear asymmetric-dynamic torque split

Rated torque holding of 700 Nm

The 0B6 gearbox is used on the B8 Series Audi A4 (8K), A5 (8T) and the US-spec Audi Q5.

6HP-32X / AL950-6A / 0BQ

Longitudinally mounted gearbox and transfer case combination

Rated torque holding of 1000 Nm

The 0BQ gearbox is used exclusively on the Audi Q7 (4L).

AISIN TR-60SN / AL750-6Q / 09D

Longitudinally mounted gearbox and transfer case combination

It uses a fuzzy logic-controlled switching program that depend on driver and driving situations as well as switching programmes that depend on driving impedance

Rated torque holding of between 750Nm and 1000 Nm

The 09D gearbox was first used in the Touareg V6 and V10 TDI

We do not offer software for this gearbox

8 Speed

ZF 8HP - 0BK / 0BL / 0D5 / 0D6 / 0DR

The ZF 8HP, manufactured by ZF Getriebe GmbH, is widely regarded as the best Automatic gearbox ever released, and found in various guises in vehicles such as the Bentley Continental GT, Dodge Challenger SRT Hellcat, Aston Martin Vanquish and even the Lamborghini Urus. It had its debut in the BMW 7 Series (F01) 760Li saloon fitted with the V12 engine. In the VAG models, it is used in the V6 and V8 TDI vehicles.

The most common types fitted to the VAG range are listed below

ZF 8HP-55A / AL551-8Q / 0BK

The 0BK was fitted to the Audi A8 with the 4.2L V8 FSI Engine. The transmission features:

  • Differential in front of the torque converter

  • Eight forward gears and reverse are implemented using four planetary gearsets and five shift elements

  • Minimized drag losses because three shift elements are closed in every gear

  • Mechatronics “shift-by-wire” system with electro-hydraulic parking lock

  • Eight gears with a ratio spread of 7.0:1, which enables short gear shifts, a powerful acceleration ratio, and high speed at low engine rpm

  • ATF supply via a chain driven vane pump

  • Lubrication of the transfer case by its own oil pump

  • Shifts into Neutral when the vehicle is stationary and the engine is idling (Neutral Idle Control [NIC])

Max Torque rating of 700 Nm from ZF.

This gearbox has a 600-700Nm torque limitation integrated in its software. This limitation can be removed with transmission software.

ZF 8HP-90A / AL951-8Q / 0BL

Seen from the exterior, there is hardly any difference between the 0BK and 0BL gearboxes. Because the 0BL gearbox is rated for a maximum torque of 1000 Nm, most components of the 0BL gearbox are accordingly larger in size.

This also applies to the exterior dimensions of the gearbox

ZF 8HP65A / AL-52-8Q / 0D5

The 0D5 transmission is based on the 0BK transmission first used in the 2011 Audi A8.

It has the internal designation AL-52-8Q. The ZF designation is 8HP65A. It is rated for up to 516 lb ft (700 Nm) of input torque.

The 0D5 transmission is based on the 0BK transmission first used in the 2011 Audi A8. It has the internal designation AL-52-8Q. The manufacturer ZF Getriebe GmbH uses the designation 8HP65A. It is rated for up to 516 lb ft (700 Nm) of input torque

The key new features of the 0D5 transmission compared to the 0BK are:

  • Twin-damper converter with integrated pendulum-type absorber.

  • Reinforced gear set with revised shift elements, the number of brake discs and clutch plates is dependent on engine version, brake B is now activated by a simplex cylinder, the number of discs of brakes A and B is configured for active disc separation using corrugated springs.

  • Mechatronics with modified hydraulic interfaces and a vehicle plug connection facing in the direction of travel .

  • Plastic ATF pan with integrated ATF suction filter and an ATF drain plug with bayonet catch in place of a thread.

  • Combined ventilation of the 3 oil systems, the ATF, the transfer case and the front final drive.

  • For the first time in a conventional converter-type automatic transmission, the operating software supports the coasting mode.

  • The neutral control function has been re-configured.

In addition, as with the 0BK transmission, the software of the 0D5 transmission uses data from the navigation system and supports the start-stop system.

Various driving modes can be selected via Audi drive select. The TCM is a participant of the Immobilizer system. ATF system cooling is regulated by the engine's thermal management system.

ZF 8HP-65A / AL552-8Q / 0D6

8-speed automatic gearbox 0D6 is a further development of 8-speed automatic gearbox 0BL first used on the Audi A8 (4H)

The key new features of the 0D6 gearbox compared with the 0BL gearbox are:

  • The torque converter with integrated dual mass flywheel with centrifugal pendulum-type absorber.

  • A reinforced gear set with revised shift elements. Brake B is now activated by a simplex cylinder and the clutch plate assembly of brakes A and B on the Audi SQ7 is configured for active plate separation by using corrugated springs. The separation of the clutch plates helps save fuel and reduces C02 emissions.

  • The mechatronics with modified hydraulic interfaces and a vehicle plug connection facing in the direction of travel.

  • A plastic ATF pan with integrated ATF suction filter and an ATF drain screw with bayonet catch in place of a thread.

  • The combined ventilation of two oil systems, the ATF and the MTF for the transfer case and the front axle drive.

  • The gearbox software enhances coasting mode.

  • In addition, as previously the case with the 0D6 gearbox, the software of the 0BL gearbox utilises the data of the navigation system and assists the start-stop system by means of a hydraulic impulse storage system, or HIS for short.

  • The gearbox setup configured using Audi drive select now offers additional modes.

It is rated for up to 1,000 Nm of input torque.

The 0D6 Gearbox is fitted to the SQ7 V8 TDI.

ZF 8HP-70 / AL550-8A / 0DR

The 8HP70, referred internally by VW as the AL550-8A with 0DR type code is an Electro-hydraulically controlled 8-speed planetary gearbox with hydrodynamic torque converter and torque converter lock-up clutch with controlled slip. It features a 2-damper converter, uses 1st gear as low-ratio moving-off gear for off-road use and towing trailers (no additional reduction box is required).

The control is via a Mechatronics Unit similar to the DSG Gearboxes (integration of the hydraulic control unit and electronic controller in one unit) with Automatic, Sport and Tiptronic modes.

Rated torque holding of 550 Nm but has been proven to be capable of holding much more than this without issues.

The 0DR Gearbox is fitted to the V6 Amarok Models.

AISIN TR-80SD / AL1000-8A / 0C8

An 8-speed automatic gearbox introduced for the first time at Volkswagen in the Touareg 2011

The 8-speed automatic gearbox 0C8 is a further development of the 6-speed automatic gearbox 09D from the Japanese gearbox company AISIN.

Together with the extensive know-how provided by the Volkswagen engineers, success has been achieved in adapting the gearbox to the Volkswagen technologies' increased requirements.

Depending on version, torque holding of up to 1000Nm

We do not offer software for this gearbox