Standard Ignition NS-359 Neutral Safety Switch

Overview of Standard Ignition NS-359 Neutral Safety Switch

The Standard Ignition NS-359 neutral safety switch is designed specifically for BMW 840Ci and 850i models. This essential electrical component ensures safe vehicle operation by preventing the engine from starting unless the transmission is in neutral or park.

• Compatible with BMW 840Ci and 850i models
• Part number NS-359 for precise identification
• 12-volt plastic construction for durability
• Rectangular female connector with 7 male terminals
• Bolt mount attachment method for secure installation
• Length of approximately 2.22 inches (56.36 mm)

Detailed Product Description

The Standard Ignition NS-359 neutral safety switch is engineered with a plastic housing and features seven male pin terminals arranged in a rectangular female connector. This design supports a 12-volt electrical system, matching the specifications of BMW 840Ci and 850i vehicles. The switch mounts securely using bolts, ensuring stable attachment without the need for additional mounting hardware, which is not included. Measuring just over two inches in length, this compact switch fits precisely within the transmission assembly to monitor gear position and prevent unintended engine starts.

Function and Common Applications

• Prevents engine start when transmission is not in neutral or park
• Ensures safety by disabling ignition in unsafe gear positions
• Resolves issues with engine cranking failure due to faulty switch
• Eliminates intermittent starting problems related to electrical connection faults
• Addresses transmission range sensor malfunctions in BMW 840Ci and 850i

Installation Notes and Tips

Installation of the NS-359 neutral safety switch requires removal of the old switch and bolt mounting the new unit in place. Ensure the rectangular female connector aligns properly with the vehicle’s wiring harness. Since mounting hardware is not included, retain original bolts or source compatible fasteners. Verify all seven male terminals are securely connected to avoid electrical faults. Testing the switch function before final assembly is recommended to confirm proper operation.

Quality Assurance and Warranty

Standard Ignition manufactures the NS-359 neutral safety switch to meet OEM specifications for BMW 840Ci and 850i models. The part is constructed from durable plastic materials and designed for reliable 12-volt electrical performance. While mounting hardware and gaskets are not included, the switch undergoes quality checks to ensure fit and function. Warranty coverage details should be confirmed with the distributor or retailer.