HomeBelts and Cooling > Radiators, Coolers and Related ComponentsStandard Ignition CXT109 Engine Coolant Reservoir
Part #: CXT109

Standard Ignition CXT109 Engine Coolant Reservoir

⚙️ 20 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mercedes-Benz, ML350, ML500, ML320, ML55 AMG, and ML430
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Reliable Engine Coolant Reservoir for Mercedes-Benz ML Models

The Standard Ignition CXT109 engine coolant reservoir is designed specifically for select Mercedes-Benz ML series vehicles. This replacement part ensures proper coolant storage and system pressure management for models including the ML55 AMG, ML320, ML350, ML430, and ML500.

  • Compatible with Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500
  • Durable construction to withstand engine heat and pressure
  • Direct replacement for original equipment coolant reservoirs
  • Maintains proper coolant levels to prevent overheating
  • Part number CXT109 for precise identification and fitment

Product Details and Compatibility

The Standard Ignition CXT109 engine coolant reservoir is engineered to meet the specifications required by Mercedes-Benz ML series vehicles. It serves as a critical component in the cooling system by storing excess coolant and allowing for thermal expansion. This reservoir is manufactured to provide a reliable seal and resist cracking or warping under high temperature conditions. Designed for models ML55 AMG, ML320, ML350, ML430, and ML500, the CXT109 ensures a proper fit and function, maintaining the integrity of the vehicle’s cooling system.

Common Applications and Problem Resolution

  • Replacement for cracked or leaking coolant reservoirs
  • Prevents coolant loss and engine overheating
  • Addresses coolant contamination issues due to reservoir damage
  • Restores proper coolant system pressure and flow
  • Eliminates coolant level warning lights caused by faulty reservoirs

Installation Notes and Tips

Installation of the Standard Ignition CXT109 engine coolant reservoir is straightforward for technicians familiar with Mercedes-Benz ML series cooling systems. Before installation, ensure the engine is cool to avoid injury from hot coolant. Drain the coolant system partially if necessary to prevent spillage. Remove the old reservoir carefully, disconnecting all hoses and sensors. Install the new reservoir, reconnect hoses securely, and refill the cooling system with the appropriate coolant. Check for leaks and proper coolant level after installation.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The CXT109 engine coolant reservoir undergoes quality control testing to ensure durability and performance under typical operating conditions. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship for a specified period. Refer to the warranty documentation for detailed terms and conditions.

BrandStandard Ignition
Part NumberCXT109
Connector GenderFemale
ContentsComplete Kit
Terminal GenderMale
Terminal TypeBlade

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2005Mercedes-BenzML350N/A
2005Mercedes-BenzML500N/A
2004Mercedes-BenzML350N/A
2004Mercedes-BenzML500N/A
2003Mercedes-BenzML320N/A
2003Mercedes-BenzML350N/A
2003Mercedes-BenzML500N/A
2003Mercedes-BenzML55 AMGN/A
2002Mercedes-BenzML320N/A
2002Mercedes-BenzML500N/A
2002Mercedes-BenzML55 AMGN/A
2001Mercedes-BenzML320N/A
2001Mercedes-BenzML430N/A
2001Mercedes-BenzML55 AMGN/A
2000Mercedes-BenzML320N/A
2000Mercedes-BenzML430N/A
2000Mercedes-BenzML55 AMGN/A
1999Mercedes-BenzML320N/A
1999Mercedes-BenzML430N/A
1998Mercedes-BenzML320N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1635000349EET109EXP708SK603258

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.