Motorad 3IC203 Direct Ignition Coil

Direct Ignition Coil for Mercedes-Benz Applications

The Motorad 3IC203 direct ignition coil is built for Mercedes-Benz and Chrysler Crossfire applications that require stable spark output and OE-style fitment. It is engineered to maintain spark voltage duration under demanding engine conditions, including high heat environments.

Designed as an OE replacement, this ignition coil supports reliable ignition performance for a wide range of Mercedes-Benz E-Class, S-Class, SL, CLK, ML, and AMG models, as well as the Chrysler Crossfire.

Key Features

• Direct ignition coil for 12 VDC systems
• Blade terminal design with 3 terminals and 1 female connector
• OE replacement construction for factory-style fitment
• Primary resistance: 200-700 Ohms
• Requires external resistor
• Non-oil-filled design for regular-duty service
• Built to meet or exceed OEM specifications
• Manufactured in ISO TS16949 facilities

Detailed Description

Motorad 3IC203 is a direct ignition coil engineered for consistent spark delivery across a broad range of Mercedes-Benz platforms, including the E500, S500, SL500, CLK500, ML500, and G500, plus related AMG and Crossfire applications. The coil is designed to maximize spark voltage duration and withstand severe operating conditions, including extreme heat. This part number, 3IC203, is an OE replacement ignition coil for drivers replacing a worn or failing coil on Mercedes-Benz E-Class, S-Class, SL-Class, and other listed models.

This part cross-references URO 0001587803 for the same application.

What It Helps Address

• Engine misfire caused by weak or inconsistent ignition output
• Hard starting related to coil degradation
• Rough idle from unstable spark delivery
• Loss of power under load from ignition breakdown
• Check engine light conditions tied to ignition coil faults

Installation Notes and Tips

Verify connector style, terminal count, and OE part number before installation. This coil uses a blade terminal layout with a female connector and male terminals, and it requires an external resistor. Confirm the vehicle’s ignition system matches the listed 12 VDC specification and replace any damaged connectors or heat-affected wiring during service.

For fitment, this part fits 2002-2017 Mercedes-Benz E500, 2010-2013 Mercedes-Benz CL500, 1997-2006 Mercedes-Benz CL500, 2006-2011 Mercedes-Benz B200, 2003-2011 Mercedes-Benz G55 AMG, 2005-2010 Mercedes-Benz SLK55 AMG, 2003-2009 Mercedes-Benz CLK500, 2007-2009 Mercedes-Benz E280, 2005-2009 Mercedes-Benz SLR McLaren, 2004-2008 Chrysler Crossfire, 2002-2008 Mercedes-Benz G500, 2002-2008 Mercedes-Benz SL55 AMG, 2002-2007 Mercedes-Benz ML500, 2006-2007 Mercedes-Benz R500, 2005-2006 Mercedes-Benz C55 AMG, 2001-2006 Mercedes-Benz CL55 AMG, 2001-2006 Mercedes-Benz CLK55 AMG, 2006 Mercedes-Benz CLS500, 2006 Mercedes-Benz CLS55 AMG, 1998-2006 Mercedes-Benz E55 AMG, 2006 Mercedes-Benz S350, 2000-2006 Mercedes-Benz S430, 2000-2006 Mercedes-Benz S500, 2001-2006 Mercedes-Benz S55 AMG, 1999-2006 Mercedes-Benz SL500, 2001-2005 Mercedes-Benz C240, 2001-2005 Mercedes-Benz C320, 1998-2005 Mercedes-Benz CLK320, 1998-2005 Mercedes-Benz E320, 2003-2005 Mercedes-Benz ML350, 2002-2004 Mercedes-Benz C32 AMG, 2002-2004 Mercedes-Benz SLK32 AMG, 2001-2004 Mercedes-Benz SLK320, 1999-2003 Mercedes-Benz CLK430, 1998-2003 Mercedes-Benz ML320, 2000-2003 Mercedes-Benz ML55 AMG, 1998-2002 Mercedes-Benz E430, 1999-2001 Mercedes-Benz ML430, 1998-2000 Mercedes-Benz C280, and 1998-2000 Mercedes-Benz C43 AMG.

Quality Assurance

Motorad designs its ignition coils to meet or exceed OEM specifications and manufactures them in ISO TS16949 facilities for controlled production quality. The 3IC203 is backed by a limited lifetime warranty.