Audi A4 Owners & Service Manuals

Audi A4: Drive system

Braking in

A new vehicle must be broken in within the first 1,000 miles (1,500 km) so that all moving parts work smoothly together, which helps to increase the service life of the engine and other drive components.

Do not drive higher than two-thirds of the maximum permitted engine RPM during the first 600 miles (1,000 km) and do not use full acceleration.

The engine can be increased RPM gradually during the next 300 miles (500 km).

Efficient and environmentally-friendly driving

Your driving style greatly influences the amount of fuel and energy consumed, the environmental impact, and the wear on the motor, brakes, and tires. Note the following information for efficient and environmentally-conscious driving:

  • Turn off electrical equipment that is not needed, for example seat heating*.
  • Anticipate upcoming traffic situations while driving to avoid unnecessary acceleration and braking.
  • Avoid driving at high speeds.
  • Avoid adding extra weight to the vehicle if possible, for example by not leaving roof racks or bike racks installed when they are not needed.
  • Make sure the tire pressure is correct.
  • Have maintenance performed regularly on the vehicle.
  • Do not let the engine run while the vehicle parked.
  • Do not drive with winter tires during the summer.
  • Use the Start/Stop system.
  • Utilize the engine braking effect.
  • Avoid driving short distances when possible.


The amount of noise produced by the vehicle can increase significantly when driving with a sporty style. Show respect to others around you and the environment with the way you operate your vehicle, especially at night.

Energy management

Your vehicle is equipped with an intelligent energy management system for distributing electricity.

This significantly improves the starting ability and increases the vehicle battery life.


  • If you drive short distances frequently, the vehicle battery may not charge enough while driving. As a result, convenience functions for electrical equipment may be temporarily unavailable.
  • The vehicle battery will gradually drain if the vehicle is not driven for long periods of time, or if electrical equipment is used when the engine is not running. To ensure that the vehicle can still be started, the electrical equipment will be limited or switched off.


The following messages may appear depending on the vehicle equipment:

Drive system: malfunction! Safely stop vehicle

There is a malfunction in the drive system. The brake booster and the power steering may stop working. Stop the vehicle immediately or as soon as possible and do not continue driving. Secure the vehicle against rolling before exiting the vehicle. Have the problem corrected by an authorized Audi dealer or authorized Audi Service Facility.

Drive system: malfunction! Please contact Service

There is a malfunction in the drive system. Drive slowly to an authorized Audi dealer or authorized Audi Service Facility to have the malfunction corrected.


     Start/Stop system

    Description Applies to: vehicles with Start/Stop system The Start/Stop system can help increase fuel economy and reduce CO2 emissions. In Start/Stop mode, the engine shuts off automatically when st


    General information You can apply the vehicle's brakes using the brake pedal. Operating noise Noises may occur when braking depending on the speed, braking force, and outside conditions such as temper

     Electromechanical parking brake

    Operating the parking brake The electromechanical parking brake is used to secure the vehicle from rolling away unintentionally. The switch is located under the selector lever in the center console


     General information

    Applies to: vehicles with Audi connect Depending on the country and the vehicle equipment, the following functions may be available: Audi connect Infotainment Audi connect vehicle control WARNING To reduce the risk of an accident, only use Audi connect services and the Wi-Fi hotspot only if


    Reinstall any covers on the wheel bolts that were removed. Store the vehicle tool kit in its designated place. If the removed wheel does not fit in the spare wheel well, store it securely in the luggage compartment. Check the tire pressure on the installed wheel as soon as possible. Corre

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