Set up in 1999, Deland Car Accessories Co., Ltd. is a professional China automatic gearbox manufacturer and designer. It has years of OES and OEM audi automatic gearbox production experiences and passed ISO9000 and the TUV certification of ISO/TS16949 quality system. Therefore, we can better fulfill customers' specifications and satisfy their changing needs, such as Ford, Opel, Benz, BMW, Nissan, Toyota, Mitsubishi, Mazda, Isuzu, Hyundai, Kia and Truck series.

The VAG Direct Shift Gearbox - sometimes called the S-Tronic in the Audi range - is the world's first production dual clutch semi automatic gearbox. The system was developed for Audi by BorgWarner for use in the companies Audi TT 3.2V6, and was so well received it is now used in much of the Volkswagen Audi Group range. The DSG is often compared to F1 style automated or robotic manual gearboxes, but differs in some very important ways. The DSG box takes the basic idea of pneumatic clutched boxes a step further. The heart of the DSG comes from the fact it has two clutches. The basic idea being that the gearbox can then have two gears engaged at any one time, one driving the car, the other waiting to take over.
The clutch arrangement is setup for odds and evens, where clutch 1 operates the 1-3-5 gears and clutch 2 operates 2-4-6.
DSG works by allowing the software to decide what gear the car will need next, and then pre-selects it. If you are accelerating, it will have the next gear up, and likewise if decelerating, the next gear down.

ZF, a company whose gearboxes are in many of our cars including that sweet new fast shifting quick locking 6-speed auto in modern BMWs has unveiled a new 8-speed automatic gearbox and presented it at the 28th International Vienna Motor Symposium. Though some of you may think ZF is yet another automakers who wants to lead in the cog race, which is currently led by Lexus with their 8-speed auto, but ZF says number of gears was not a priority when designing this unit.
“Our main development target was to find a transmission concept which allows for significant additional fuel consumption reduction and thus offers tangible added value to our customers and drivers without making any compromises in terms of performance”, explains Dr. Michael Paul, ZF Executive Vice President, Technology and Group Executive of the Car Driveline Technology division. It just so happened that to achieve those targets, 8 gears was needed. The new gearbox can also handle larger input torque with the same weight as compared to the previous model, the second generation 6-speed that’s found in the 335i. It was also designed to be modular, which means it can be used in all-wheel drive systems without much modification.