2003-2008 BMW E85 Z4 BCM Body Basic Control General Module 5 V Computer 61359116445 OEM

Product Details

Genuine BMW OEM Basic Module 5, commonly called the GM5, General Module or Body Control Module. This module is designed for select 2003–2008 BMW Z4 E85 Roadster and E86 Coupe models.

The GM5 communicates with multiple body and convenience systems throughout the vehicle. It must be properly matched and coded to the vehicle’s equipment configuration after installation.

• Brand: Genuine BMW

• Product type: Basic Module 5 / GM5

• BMW description: Basic Module 5

• Primary OEM part number: 61 35 9 116 445

• Compact number format: 61359116445

• Module configuration: GM5 LOW / two-door

• Installation location: Vehicle electrical/body-control system

• Country of manufacture: Germany

• Chassis compatibility: E85 and E86

• BMW production status: Discontinued

Module Functions

Depending on the vehicle’s equipment, the GM5 may communicate with or control functions including:

• Central locking

• Remote locking and unlocking

• Door-lock actuators

• Power windows

• One-touch window operation

• Interior lighting

• Trunk release

• Windshield wipers and washers

• Alarm-system functions

• Convenience opening and closing

• Door and window coordination

• Convertible-related window-drop functions on Roadster models

The exact functions controlled by the module depend on the vehicle’s production date, equipment and coding.

Compatibility

Compatible with select 2003–2008 BMW Z4 vehicles, including:

BMW E85 Z4 Roadster

• Z4 2.0i

• Z4 2.2i

• Z4 2.5i

• Z4 2.5si

• Z4 3.0i

• Z4 3.0si

• Z4 M Roadster

BMW E86 Z4 Coupe

• Z4 3.0si Coupe

• Z4 M Coupe

Some engine variants were available only in certain international markets. Compatibility should be determined using the VIN, original module number and vehicle equipment—not engine designation alone.

North American Applications

Potential North American applications include:

• 2003–2005 BMW Z4 2.5i Roadster

• 2003–2005 BMW Z4 3.0i Roadster

• 2006–2008 BMW Z4 3.0i Roadster

• 2006–2008 BMW Z4 3.0si Roadster

• 2006–2008 BMW Z4 3.0si Coupe

• 2006–2008 BMW Z4 M Roadster

• 2006–2008 BMW Z4 M Coupe

Always verify the part number and module configuration before ordering.

Interchange Part Numbers

BMW part number 61359116445 supersedes or replaces the following earlier Basic Module 5 numbers:

• 61 35 4 114 221 – 61354114221

• 61 35 6 919 275 – 61356919275

• 61 35 6 931 707 – 61356931707

• 61 35 6 939 943 – 61356939943

• 61 35 6 944 844 – 61356944844

• 61 35 6 963 038 – 61356963038

• 61 35 6 963 350 – 61356963350

• 61 35 6 988 086 – 61356988086

• 61 35 9 116 445 – 61359116445

BMW catalogs identify 61359116445 as the later replacement and show it as retrospectively interchangeable with earlier Z4 GM5 revisions. Vehicle-specific coding is still required.

Coding Requirements

BMW describes this replacement as “Basic Module 5 Uncoded.”

A replacement GM5 should be programmed or coded to match the vehicle’s:

• VIN

• Production date

• Factory options

• Central-locking configuration

• Power-window configuration

• Alarm equipment

• Roadster or Coupe body configuration

• Regional convenience settings

A pre-owned module may retain coding from the donor vehicle. Professional BMW diagnostic equipment is recommended for installation and coding. Remote keys or convenience functions may also require initialization after replacement.

This module should not be advertised as universally plug-and-play.

Possible Failure Symptoms

A faulty GM5 may cause symptoms such as:

• Intermittent or inoperative door locks

• Doors that lock but will not unlock

• Power-window malfunctions

• One-touch windows not operating

• Interior lights behaving incorrectly

• Trunk-release problems

• Intermittent remote-key operation

• Wiper or washer irregularities

• Convenience-opening or closing problems

These symptoms can also be caused by wiring, switches, actuators, relays, fuses, damaged window regulators or other control modules. Proper diagnosis is recommended before replacement.

Condition

Genuine BMW OEM electronic component. Review all product photographs for the exact condition, label information, connector sockets, housing, mounting points and included components.

Normal cosmetic wear, scratches, dust or handling marks may be present if the module is pre-owned. Cosmetic appearance does not determine electronic compatibility.

What Is Included

• One BMW Basic Module 5 / GM5 body-control module

• OEM part number 61359116445

No wiring, mounting hardware, keys, diagnostic equipment or additional modules are included unless specifically shown in the product photographs.

Installation

Disconnecting or replacing electronic control modules can affect stored settings and vehicle operation. Installation and coding should be performed by a qualified BMW technician or experienced automotive electronics specialist.

Before installation:

1. Diagnose the original problem.

2. Verify the original module number.

3. Confirm the replacement number is a recognized supersession.

4. Inspect the vehicle connectors for corrosion or water damage.

5. Maintain stable vehicle voltage during coding.

6. Code the replacement module to the vehicle.

7. Initialize the windows and remote-key functions if required.

8. Test all body and convenience systems after installation.

Not Compatible With

• BMW E46 GM5 HIGH modules

• BMW E83 X3 GM5 modules with different hardware or coding

• BMW E52 Z8 modules

• Four-door GM5 configurations

• Modules with incompatible connector, bus or equipment specifications

• Vehicles outside the E85/E86 Z4 platform unless independently verified

Similar-looking GM5 modules are not automatically interchangeable.

Buyer Verification

Before ordering, compare:

• Complete BMW part number

• GM5 LOW designation

• Connector configuration

• Module label and hardware version

• E85 Roadster or E86 Coupe application

• Vehicle production date

• Original equipment and option codes

VIN verification through a BMW dealer or qualified parts specialist is strongly recommended.

Important Notice

Replacing the GM5 may not correct the vehicle’s problem if the fault is caused by wiring, locks, window regulators, actuators, switches, relays, fuses or another control unit. Electronic components should be installed only after proper diagnosis. Programming of the vehicle is recommended by BMW after installation of the replacement component.