If a worn relay is behind an A/C, ABS, fuel injection or accessory circuit that no longer switches reliably, the Standard Ignition RY-1086 relay (also written RY1086) replaces it. Standard describes this part as an A/C auto temperature control relay. The catalog also lists it as an ABS relay, accessory power relay and fuel injection relay, depending on the application. It is a direct-fit replacement for many vehicles, including the 1998-2003 Mercedes-Benz ML320, 2014-2025 Mercedes-Benz CLA250 and 2010-2024 Mercedes-Benz Sprinter 2500. See the "Vehicles it fits" section for the full list and engine details.
A relay is an electrically operated switch. A low-current control signal energizes it, and it then opens or closes a separate, higher-current circuit.
- Composite housing: designed to protect against harsh temperatures and the most demanding under-hood conditions.
- Certified manufacturing: produced at TS16949 and ISO9001 certified facilities.
- Original equipment background: Standard is a global manufacturer of original equipment ignition products and maintains quality control throughout the manufacturing process, from componentry to finished product.
Signs this relay may need replacing include the circuit it controls working intermittently or not at all. A blown fuse, a wiring fault or a failed component can cause the same symptoms, so diagnose the circuit before replacing the relay.
Frequently Asked Questions
What does the RY-1086 relay do?
It is an electrically operated switch. A low-current control signal energizes it to open or close a higher-current circuit. Standard describes it as an A/C auto temperature control relay.
Is the RY-1086 listed under other relay names?
Yes. Besides the A/C auto temperature control description, the catalog lists the RY-1086 as an ABS relay, accessory power relay and fuel injection relay, depending on the application.
Which vehicles does the RY-1086 fit?
It is listed for many vehicles, mainly Mercedes-Benz models such as the 1998-2003 Mercedes-Benz ML320 and 2014-2025 Mercedes-Benz CLA250, plus the 2007 Dodge Sprinter 2500. See the "Vehicles it fits" section for the full list.
Does this relay fit classic Mercedes-Benz models?
Yes. The "Vehicles it fits" section lists some classic Mercedes-Benz models alongside many modern Mercedes-Benz models.
What are signs the relay may need replacing?
The circuit it controls may work intermittently or not at all. A blown fuse, a wiring fault or a failed component can cause the same symptoms, so diagnose the circuit before replacing the relay.
