BMW 5 Series Owners & Service Manuals

BMW 5 Series: Exterior equipment

Exterior

Introduction
G30 Exterior highlights

  1. Air flaps in the radiator grill
  2. Air Breather
  3. Headlights extend to the radiator grill
  4. Adjustable housing for rear lights

Underbody

The almost fully closed vehicle underbody plays an important role in the aerodynamics. The acoustics in the vehicle are also significantly improved as a result. In the front section, the air flow is directed past the front wheels by the displacers (7). In this way, the airflow on the front wheel is reduced. In the rear area, the 2 wind deflectors (3) on the axle and the cover of the rear axle differential (5) contribute to optimized underbody flow together with the rear diffuser (4), which is adapted for each drivetrain design.

Introduction
G30 Underbody trim

  1. Cross-member with wind deflector
  2. Tank cover with wind deflector
  3. Wind deflector, rear axle
  4. Rear diffuser
  5. Cover, rear axle differential
  6. Cover, exhaust system
  7. Displacer

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     Bodyshell

     Body overview, Body structure

    Body overview G30 Side frame structure Multiphase steel (> 300 N/mm²) Ultra-high-strength steel (> 900 N/mm²) Aluminum Deep-drawing steel (< 300 N/mm²) Other ste

     Screw connections

    Some of the Aluminum-steel connections in the G30 body structure are produced using a new body joining technique: flow drill screws. These include, for example, the connection between the engine sup

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     Crankcase

    Honing process Honing process "old/new" Previous manufacturing process of internal cylindrical honing New manufacturing process of form honing The cylindrical bore hole of a combustion engine becomes deformed during the operating condition by thermal loads. Form honing allows this deformation

     Changing wheels and tires

    Mounting and wheel balancing Have mounting and wheel balancing carried out by a dealer's service center or another qualified service center or repair shop. Wheel and tire combination General information You can ask the dealer's service center or another qualified service center or repair shop about

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