The 7-speed dual clutch transmission has one mechanically driven hydraulic pump and one electrically driven hydraulic pump. The electrically driven hydraulic pump is the V475 Transmission Fluid Auxiliary Hydraulic Pump 1. It is driven by a brushless direct current motor. The seven-speed dual-clutch transmission 7DCT300 is a transmission of third generation with Smart Actuation. The dual-clutch transmission for mid and front transverse applications sets standards in efficiency. Due to Smart Actuation, the transmission requires only as much energy as a light bulb. This transmission is based on a modified version of its so-called 8DCT, an eight-speed, wet-type, dual-clutch transmission that was developed in-house. Hyundai says the gearbox has received. The dual clutch transmission from ZF enables lightning-fast gear changes under load without interrupting the torque. It is thus ideally suited for vehicles with dynamic/sporty designs. In them, the ZF transmission performs a balancing act between pure sportiness and the highest driving comfort.

Audi has used two different types of automatic gearboxes in their cars, the Multitronic CVT (Continuous Variable Transmission) and the S-Tronic Dual Clutch, and even though Audi has chosen to discontinue the CVT transmission for upcoming models, there are plenty of Audis that use the CVT transmission still on the market, both new and used. If you are trying to decide which Audi transmission is better for you, let’s look at how each transmission works.

CVT Transmissions

A CVT transmission has no fixed gears, which means there are notraditional gears that run from first to sixth but rather there are two pulleysconnected to each other by a belt. One pulley is connected to the car’s engine,and the other pulley is connected to the transmission and wheels. The pulleysare designed in a way that they appear to be changing size infinitely, fromsmall to large. This is achieved by having each pulley shaped like a cone.

When taking off, the belt at the pulley connected to the engine isat the narrowest end on the cone, and at the pulley connected to thetransmission is at the widest end of the cone. As you gain speed, and wouldtraditionally change to sixth gear, or your cars highest gear, the belt shiftsto the widest end of the cone for the pulley connected to the engine, and thepulley connected to the transmission will shift the belt to the narrowest endof the cone.

Benefits of a CVT Transmission

Dual Clutch Transmission Oil

• The car can adjust to the best rev-range for any given situation
• Since there is no need to change gears, the drive feels continuousand smooth
• Since the car can quickly adjust to the best rev-range, economy isimproved

Disadvantage of a CVT Transmission

Dual Clutch Transmission Vw

• The car will quickly to a rev point and stay at that point whilethe car is accelerating, which many drivers describe as feeling like having aclutch slip
• You lose the immediate throttle response that drivers are used to,and can make gaining speed to overtake a little more difficult

Dual Clutch Transmission

A dual clutch transmission, as I’m sure you’ve already guessed,has two clutches to manage gears. Clutch A is used on odd numbered gears –first, third, fifth and seventh. Clutch B is used on even numbered gears –second, fourth and sixth. The two clutches are designed to work with each otherto make changes between gears smoother and quicker by reducing the time theclutch takes to move from gear to gear.

Dual Clutch Transmission For Sale

When you start your car and move it from park to neutral, clutch Aprepares first gear and clutch B prepares second gear. When you shift to drive,Clutch A moves first gear into position, and as you begin accelerating, clutchB begins to spin second gear to match the rotational speed of the first gear.When it’s time to gear up, clutch A moves first gear out of position, andclutch B moves second gear into position making the change over from first tosecond instantaneous. Once second gear is in position, clutch A picks up thirdgear, and spins it to match the rotational speed of the second gear, and createthe same effect for the change from first to second for second to third. Thisprocess repeats through all the gear changes.

Dual Clutch Transmission Hyundai

Benefits of a Dual Clutch Transmission

• Acceleration is improved.
• Gear changes are smoother than traditional automatics
• Throttle response is maintained from manual versions

Disadvantages of a Dual Clutch Transmission

• There is no improvement on downshift time from traditionalautomatics
• Higher maintenance costs
• Mechatronics unit can gobad leading to expensive repairs

Best Dual Clutch Transmission

Whether you decide on a dual clutch transmission or a CVTtransmission, you can rest your mind in knowing Audi is supplying you with thebest transmission for your needs. Should you have questions, are looking tohave some work done on your Audi, or have an Audi in need of a newor repaired transmission, please feel free to contact us at Foreign Affairs Motorsport,South Florida’s Premier German Auto Repair, Performance & Race FacilitySince 1978.