Standard Ignition RY-779 Computer Control Relay

Computer Control Relay for BMW Electrical Systems

Standard Ignition RY-779 is a 12-volt computer control relay built for BMW electrical and body control applications. It uses a 5-terminal blade design with male terminals and a 34 amp rating for direct relay replacement in the listed vehicles.

This relay is a practical replacement for BMW 325i, 330i, X5, and other listed models when the original relay fails or electrical control becomes inconsistent. Standard Ignition RY-779 is also cross-referenced to Four Seasons 20954 for the same application.

Key Features

• 12-volt computer control relay
• 34 amp amperage rating
• 5 blade terminals with male terminal ends
• No connector included
• No mounting bracket included
• Standard Ignition RY-779 replacement part

Detailed Description

Standard Ignition RY-779 is a relay used in BMW electrical control circuits where a compact, blade-terminal relay is required. The 5-terminal layout and 34 amp rating make it suitable for relay-controlled functions in a wide range of BMW models, including 2007 BMW 335i, 2004-2007 BMW X3, 2000-2007 BMW X5, 2001-2006 BMW 325i, 2001-2006 BMW 330i, and 1996-2002 BMW Z3. The part number RY-779 is also listed under interchange references including BMW 12630153635, AR6284, and R6284.

Use this relay when diagnosing intermittent electrical operation, relay chatter, or a failed control circuit in BMW 3 Series, X5, Z4, M3, M5, and related applications. Confirm terminal style, cavity layout, and circuit rating before installation.

What This Relay Helps Address

• Intermittent relay operation in BMW electrical circuits
• No-start or accessory control issues caused by a failed relay
• Inconsistent power delivery to computer-controlled functions
• Electrical switching faults in blade-terminal relay locations
• Replacement needs for worn or heat-damaged relay contacts

Installation Notes and Tips

Verify the original relay’s terminal count, blade style, and amperage rating before replacement. Match the vehicle’s relay socket and circuit requirements to the RY-779 configuration, and inspect the connector cavity for corrosion, heat damage, or loose terminals before installing the new relay.

Compatible BMW applications include 2007 BMW 335i, 2007 BMW 335xi, 2004-2007 BMW X3, 2000-2007 BMW X5, 2003-2007 BMW Z4, 2001-2006 BMW 325Ci, 2001-2006 BMW 325i, 2001-2006 BMW 330i, 2002-2006 BMW M3, 2006 BMW M5, and 1996-2002 BMW Z3. Additional listed coverage includes 1992-1999 BMW 318i, 1997-2000 BMW 528i, and 1992-1995 BMW 320i.

Quality Assurance

Standard Ignition supplies this relay as a direct replacement electrical component for the listed BMW applications. The part is built to the stated 12-volt, 34 amp, 5-terminal blade specification for accurate fitment and circuit matching.