Home Model overview
High Performance Model
Sales
Owner & Service
Explore Audi
Contact Us
Request a test drive
Online Service Booking
Close
  • S3 Sedan
    S3 Sedan

    More dynamic. More striking. Better equipped. The all-new S3 Sedan displays phenomenal performance inside and out.

  • S3 Sportback
    S3 Sportback

    More dynamic. More striking. Better equipped. The all-new S3 Sportback displays phenomenal performance inside and out.

Close
Close
Close
Close
Close
Close
  • Q2
    Q2

    Dynamic design, outstanding fun. The new Audi Q2.

Close
Close
  • Q5
    Q5

    More than an SUV. The Audi Q5.

Close
  • Q7
    Q7

    Versatile top-class SUV. The Audi Q7.

Close
  • Q8
    Q8

    The new face of the Q family: the Audi Q8

  • RS Q8
    RS Q8

    Performance in a new dimension. The Audi RS Q8.

Close
  • TT Coupé
    TT Coupé

    The Audi TT Coupé. Pure emotion packaged in form and function. Pure consistency in quality and efficiency. Pure sportsmanship brought to the road.

  • TTS Coupé
    TTS Coupé

    The Audi TTS Coupé is bursting with sports car genes. Dynamic driving even controlled - by the new quattro permanent all-wheel drive. The design is individualized by S-specific elements and instantly recognizable. The innovative technologies in the drive, as well as new control and display concepts - including the Audi virtual cockpit - characterize the Coupé.

  • TT RS Coupé
    TT RS Coupé

    Ultimate sportiness. The Audi TT RS Coupé.

  • TT RS Roadster
    TT RS Roadster

    Experience freedom, feel the power. The Audi TT RS Roadster.

Close
Close
Close
Close
Close
1300x551_Common-Rail-System.jpg
Audi | Hong Kong Official Website Models Technology

Common rail system

Common rail, as the name suggests, is a shared fuel line. The rail is an accumulator supplied by a pump, which maintains the fuel at a pressure of up to 2000 bar – which is equivalent to the weight of a luxury saloon on the space of one square centimetre.

The common rail system permits a particularly consistent, smooth and efficient combustion process.

Thanks to the high pressure and the very fine bore diameter of only one tenth of a millimetre in the nozzles, the injectors in the common rail system achieve very fine atomisation of the fuel. This provides an excellent, homogeneous mixture preparation and ensures extremely efficient combustion, which in turn results in enormous power, low emissions and low consumption.
quattro® with sport differential reinforces the inimitable quattro feeling

Vehicles tend to understeer when turning into and moving through bends. This is a normal physical process: a moving body resists a change in direction. The elastic tyres and the suspension mounts tense up until the vehicle adopts the new direction. When accelerating into a bend, the load on the front axle is reduced and it can therefore transfers less lateral force to the tyres – the vehicle understeers. This tendency is largely counteracted with the sport differential on the rear axle. This is because a superposition unit with two gear stages has been added to the quattro rear-axle differential on the left and right. These ensure that the individual wheels on the rear axle receive different levels of drive torque. The effect: the propulsive power “forces” the car into the bend so that it follows the angle of the front wheels.
Drive technologies
High Performance Model
Sales
Owner & Service
Explore Audi
© 2021 Kam Lung Motors Limited. All rights reserved
VHost
www.audi.com.hk
Version
111.1.0
Build
20210222054714
Frontend
111.1.2
Rendertime
20210304030115
StaticVersion
20210222071024
Activated Scopes
Context Scopes