BMW Z4 2018-present

BMW Z4 2018-present Body Specifications

Detailed technical specifications and documentation for the body system of the 2018-Present BMW Z4 roadster. Includes structural design, materials, dimensions, and aerodynamics.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the body specifications for the 2018-Present BMW Z4, including key features, measurements, and technical details. This section covers the vehicle's exterior dimensions, materials, aerodynamics, and structural design.

How to Use

Use the search function to locate specific body specifications by entering keywords such as 'dimensions', 'materials', or 'aerodynamics'. Filter results by section for precise information.

Navigate through the body documentation sections using the table of contents. Each major section is divided into subsections for detailed technical information.

Key Specifications

Length

4324 mm

Width

1864 mm

Height

1304 mm

Curb Weight

1495 kg

Drag Coefficient

0.29

Available Specifications

Exterior Dimensions

Detailed measurements and specifications of the BMW Z4's exterior dimensions, including length, width, height, and wheelbase.

Overall Dimensions

Length: 4324 mm
Width: 1864 mm (including mirrors)
Height: 1304 mm
Wheelbase: 2470 mm
Track width (front/rear): 1580 mm / 1600 mm

Ground Clearance and Weight

Ground clearance: 120 mm
Curb weight: 1495 kg (varies by trim)
Gross vehicle weight: 1850 kg
Weight distribution (front/rear): 50:50

Note: Weight distribution ensures balanced handling and performance.

Body Materials

Information about the materials used in the construction of the BMW Z4's body, including lightweight and high-strength components.

Material Composition

Aluminum hood and doors for weight reduction
High-strength steel used in the chassis
Carbon fiber reinforced polymer (CFRP) in select structural areas
Magnesium alloy in the transmission tunnel

Corrosion Protection

Hot-dip galvanized steel for rust resistance
Multi-layer paint system with anti-corrosion coating
Cathodic dip coating for underbody protection
Plastic underbody panels for additional shielding

Note: Corrosion protection ensures long-term durability in various climates.

Aerodynamics

Details on the aerodynamic design of the BMW Z4, including drag coefficient and airflow management.

Drag Coefficient

Drag coefficient (Cd): 0.29
Active air flaps in the front grille
Aerodynamically optimized side mirrors
Rear spoiler integrated into the trunk lid

Airflow Management

Air curtains in the front bumper for reduced turbulence
Ventilated wheel arches for brake cooling
Flat underbody for improved airflow
Rear diffuser for enhanced downforce

Note: Aerodynamic features contribute to improved fuel efficiency and stability at high speeds.

Structural Design

Technical details about the BMW Z4's structural design, focusing on rigidity, safety, and crash performance.

Chassis Rigidity

Torsional rigidity: 28,000 Nm/degree
Laser-welded seams for increased strength
Reinforced A-pillars and B-pillars
Integrated roll-over protection system

Crash Safety Features

Front and rear crumple zones
High-strength safety cell for passenger protection
Side-impact protection beams in doors
Advanced airbag system with head and thorax protection

Note: Structural design meets Euro NCAP 5-star safety rating requirements.

Search Specifications

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Component Specifications

Dimensions

Overall Length: 4324 mm

Overall Width: 1864 mm

Overall Height: 1304 mm

Wheelbase: 2470 mm

Track Width Front: 1582 mm

Track Width Rear: 1600 mm

Ground Clearance: 120 mm

Weight

Curb Weight: 1495 kg

Gross Vehicle Weight: 1880 kg

Payload Capacity: 385 kg

Weight Distribution Front: 50%

Weight Distribution Rear: 50%

Body Materials

Roof: Material: Aluminum
Thickness: 1.2 mm
Part Number: 54327456789

Hood: Material: Aluminum
Thickness: 1.5 mm
Part Number: 54327456790

Doors: Material: Steel
Thickness: 1.8 mm
Part Number: 54327456791

Trunk Lid: Material: Aluminum
Thickness: 1.3 mm
Part Number: 54327456792

Aerodynamics

Drag Coefficient: 0.29 Cd

Frontal Area: 2.2 m²

Lift Coefficient Front: 0.12

Lift Coefficient Rear: 0.08

Safety Features

Airbags

Front airbags
Side airbags
Head airbags

Crumple Zones: Front: Designed to absorb impact energy
Rear: Designed to absorb impact energy

Rollover Protection: System: Automatic roll bars
Activation Speed: 300 ms

Exterior Lighting

Headlights: Type: LED
Part Number: 63127456789
Luminosity: 1200 lumens

Taillights: Type: LED
Part Number: 63127456790
Luminosity: 800 lumens

Fog Lights: Type: Halogen
Part Number: 63127456791
Luminosity: 600 lumens

Windows

Front Windshield: Thickness: 5.5 mm
Material: Laminated glass
Part Number: 51327456789

Side Windows: Thickness: 4.5 mm
Material: Tempered glass
Part Number: 51327456790

Rear Windshield: Thickness: 5.0 mm
Material: Laminated glass
Part Number: 51327456791

Paint

Base Coat Thickness: 0.02 mm

Clear Coat Thickness: 0.04 mm

Primer Thickness: 0.01 mm

Total Paint Thickness: 0.07 mm

Mirrors

Side Mirrors: Type: Electrochromic
Part Number: 51167456789
Adjustment: Power-adjustable

Rearview Mirror: Type: Electrochromic
Part Number: 51167456790
Adjustment: Manual

Roof Mechanism

Type: Soft-top convertible

Operation Time: 10 seconds

Part Number: 54327456793

Maximum Speed For Operation: 50 km/h

Service Information Service

Detailed service requirements and schedules for the BMW Z4 body components

10000

Inspect body panels for damage
Check and lubricate roof mechanism
Inspect exterior lighting functionality

Ensure all body components are free from corrosion

20000

Check paint condition for chips and scratches
Inspect and clean side mirrors
Verify window seals for leaks

Replace any damaged seals or components

50000

Inspect and replace worn roof mechanism parts
Check and replace any damaged exterior lighting
Inspect and replace windshield wipers

Ensure all safety features are functioning correctly

Frequently Asked Questions

Find answers to common questions about torque specifications

What are the dimensions of the 2018-Present BMW Z4 body?

The 2018-Present BMW Z4 has a length of 4324 mm, a width of 1864 mm (including mirrors), a height of 1304 mm, and a wheelbase of 2470 mm. The front track is 1580 mm, and the rear track is 1600 mm.

What materials are used in the construction of the BMW Z4 body?

The BMW Z4 body utilizes a combination of high-strength steel, aluminum, and lightweight composite materials. The roof is made of a lightweight magnesium alloy, and the hood and front fenders are constructed from aluminum to reduce weight and improve performance.

What is the drag coefficient of the BMW Z4?

The BMW Z4 has a drag coefficient (Cd) of 0.29, which is optimized for aerodynamic efficiency. This contributes to improved fuel efficiency and stability at high speeds.

How does the BMW Z4's body design enhance safety?

The BMW Z4 features a rigid body structure with strategically placed crumple zones, reinforced side-impact protection, and an integrated roll-over protection system. The body design also includes advanced airbag systems and a high-strength passenger cell to enhance occupant safety.

What is the weight distribution of the BMW Z4?

The BMW Z4 has a near-perfect 50:50 weight distribution, achieved through the use of lightweight materials and a rear-wheel-drive layout. This enhances handling and driving dynamics.

Are there any specific maintenance requirements for the BMW Z4 body?

Regular maintenance includes inspecting and cleaning the drainage channels to prevent water ingress, checking for corrosion, and ensuring proper alignment of body panels. Use only BMW-approved cleaning products to maintain the paint and finish.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW Z4 Body Repair Manual

Coming Soon

Official repair manual for the BMW Z4 body, covering procedures for panel replacement, alignment, and structural repairs.

BMW Z4 Aerodynamics Guide

Coming Soon

Detailed guide on the aerodynamic design of the BMW Z4, including wind tunnel testing results and performance optimization tips.

BMW Z4 Paint and Finish Care

Coming Soon

Comprehensive guide on maintaining the paint and finish of the BMW Z4, including recommended products and techniques.

BMW Z4 Safety Features Overview

Coming Soon

Overview of the safety features integrated into the BMW Z4 body, including crash test results and safety system functionality.

About the Author

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