Bosch SR0503X Starter Motor

Bosch SR0503X Starter for Mercedes-Benz

The Bosch SR0503X is a remanufactured 12-volt starter built for direct replacement in select Mercedes-Benz applications. It is engineered with a 1.7 power rating, clockwise rotation, and an attached solenoid for dependable cranking performance.

Built under Bosch Premium Starters standards, this remanufactured unit is tested for performance and reliability. It is a strong OE-style choice for Mercedes-Benz E350, C350, GLK350, C300, and E300 models that require the SR0503X application.

Key Features

• Remanufactured Bosch starter for 12-volt starting systems
• 1.7 power rating for consistent engine cranking
• Clockwise starter rotation
• Attached solenoid for simplified replacement
• Aluminum nose cone with closed nose design
• 10-tooth drive configuration
• OE recommendation noted for this application
• Direct-fit replacement for select Mercedes-Benz starter applications

Product Details

The Bosch SR0503X starter is designed for Mercedes-Benz vehicles that need a remanufactured starting motor with OE-style fit and function. Its aluminum finish and closed nose construction support a durable installation profile, while the 2-bolt mounting pattern helps match the original starter layout. This part cross-references Bosch 2769062400 for the same application.

Compatible With 2012-2016 Mercedes-Benz E350, N/A; 2013-2015 Mercedes-Benz C350, N/A; 2013-2015 Mercedes-Benz GLK350, N/A; 2013-2014 Mercedes-Benz C300, N/A; and 2013-2014 Mercedes-Benz E300, N/A with Start/Stop Feature. Search terms such as Mercedes-Benz E350 starter remanufactured, Bosch SR0503X starter, and Mercedes-Benz C350 replacement starter align with this application.

Common Issues This Starter Can Address

• Slow or weak engine cranking
• No-start condition caused by starter failure
• Intermittent starter engagement
• Clicking at key start with no engine turnover
• Replacement need after starter wear in high-mileage vehicles

Installation Notes and Quality Assurance

Verify the vehicle’s original starter configuration, tooth count, rotation, and mounting style before installation. This unit does not include mounting hardware or shims, so reuse or source the correct components as needed for the application. Confirm fitment carefully on Mercedes-Benz E350, C350, GLK350, C300, and E300 models, including E300 vehicles with Start/Stop Feature.

Bosch Premium Starters are built and tested to meet performance and reliability expectations for remanufactured starting systems. The SR0503X is an OE-recommended replacement for the listed applications.