BMW 7 Owners & Service Manuals

BMW 7 Series: System Overview

Front Axle

A double wishbone front axle as known from the E70 and E71 is now also fitted in the F01/F02.

In comparison with the double pivot spring strut front axle on the E65, this front axle design offers the following advantages:

  • Higher transverse acceleration is reflected in greater vehicle agility.
  • Improved cornering/steering and transition characteristics which are particularly favorable in terms of rolling motion.
  • Reduced interference means greater comfort.
  • Shock absorbers that are subjected to virtually no transverse forces provide greater comfort.
  • The design layout of the double wishbone front axle facilitates vertical dynamics control (VDC) and all-wheel drive (as on the E70/E71) without the need to adjust height and no spring travel loss.
  • Double wishbone front axles improve directional stability.

The outstanding driving dynamics, the excellent driving comfort as well as the exceptional directional stability are factors of this double wishbone front axle design solution that contribute to a high degree of driving pleasure and safety while making the vehicle ideal for every day use and providing the most relaxing drive on long journeys.

Chassis And Suspension
Fig. 1: Identifying F01/F02 Chassis And Suspension Components

COMPONENT REFERENCE CHART

  1. Spring/damper
  2. Rear axle
  3. Wheels/tires
  4. Steering
  5. Brakes
  6. Front axle

Rear Axle

Compared to the integral IV rear axle, the further-developed integral-V rear axle in the F01/F02 is characterized by further improved driving dynamics without compromising comfort and driving safety.

Furthermore, a "distributed" integral-V rear axle was required in order to realize HSR (rear axle slip angle control) that is a fundamental part of the integral active steering system.

Dampers/suspension

In the F01/F02, the range of spring/damper units extends from the steel spring with standard vertical dynamics control (VDC) through to the electronically controlled dampers that can also be combined with the single axle air spring on the rear axle.

Brakes

The brake system on the F01/F02 is a further developed high performance brake system with newly adapted dimensions for the F01/F02 and is dependent on the national market specification. The service brake is based on the conventional design, however, the parking brake features an electromechanical parking brake system (EMF).

Steering

The F01/F02 is available with two steering system variants:

  • Hydraulic servotronic
  • Integral active steering (IAL).

Both steering systems are adapted to the varied application options of the F01/F02. The integral active steering is a new BMW development.

Wheels and Tires

In contrast to its predecessor the E65/E66, the F01/F02 is now equipped as standard with a runflat safety package.

    READ NEXT:

     System Components

    General The chassis and suspension is subdivided into the main components that are described in more detail in the following: Front axle Rear axle Damping/suspension Brakes Steering Wheels/tir

     Service

    NOTE: The track and camber at the rear axle can still be adjusted by means of two eccentric screws, however, a new procedure must be observed! REAR AXLE DIMENSION REFERENCE CHART Damping/suspension

     Dynamic Driving Systems

    SEE MORE:

     Head-up Display

    Concept This system projects important information into the driver's field of vision, for instance the speed. The driver can get information without averting his or her eyes from the road. General information Follow the information on cleaning the Head-up Display. Overview Switching on/off Via iDr

     Drive, Roller Sun Blind/Sun Visor

    REMOVING AND INSTALLING OR REPLACING DRIVE UNIT FOR ROLLER SUN BLIND Necessary preliminary tasks Remove REAR WINDOW ROLLER BLIND Release screws (1). Remove drive linkage (2). Installation: Drive linkage (2) can only be installed in one position. Fig. 63: Identifying Drive Linkage With Mounting

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