Genuine 0015420219 Multi Purpose Relay

Genuine Multi-Purpose Relay 0015420219

This Genuine multi-purpose relay, part number 0015420219, is a 5-pin electrical relay used across a wide range of Mercedes-Benz systems. It is specified for applications including auxiliary fan control, A/C-related functions, fuel pump circuits, window regulators, seat adjustment, oxygen sensors, and air injection declutching start units.

Key Features

• Genuine replacement relay for Mercedes-Benz electrical systems
• 5-pin plastic-case design
• Used in auxiliary fan, A/C, fuel pump, window, seat, and emissions-related circuits
• Fits multiple Mercedes-Benz C-Class, E-Class, S-Class, and SL models
• Part number 0015420219 for direct identification

Detailed Description

Part number 0015420219 is a Genuine multi-purpose relay engineered for specific Mercedes-Benz electrical applications. Depending on the vehicle and system, it is used for auxiliary fan operation, brake pressure regulator functions, burglary alarm circuits, oxygen sensor control, headlight washer systems, and other body or engine-management relay duties. This relay is listed for numerous Mercedes-Benz 190E, 300-series, C-Class, E-Class, S-Class, CL-Class, and AMG applications from 1972 through 2000.

Compatible With Mercedes-Benz 190E, 300E, 300SD, C230, C280, C43 AMG, S500, and other listed models where a 5-pin multi-purpose relay is specified. Verify the notes in the fitment list to match the exact system and production range before ordering. This part number 0015420219 is also referenced in Mercedes-Benz service applications that call for a plastic-case relay in the listed circuit.

What This Relay Helps Address

• Auxiliary fan not switching on
• Intermittent A/C or cooling fan relay operation
• Window, seat, or ventilation control electrical faults
• Fuel pump or shift-point relay circuit issues
• Emissions or headlight washer relay failures on listed models

Installation Notes and Tips

Match the relay by pin count, case style, and the notes shown for your exact Mercedes-Benz model and year. Several applications are tied to specific chassis ranges or production breakpoints, so confirm the original relay location and circuit function before installation. Inspect the relay socket for heat damage, corrosion, or loose terminals before fitting the replacement.

Quality Assurance

Genuine replacement part 0015420219 is built to the original application requirements for the listed Mercedes-Benz vehicles. This part cross-references Bosch (e.g., 0332019150) for the same application.