Vemo V20-99-0169 Engine Coolant Thermostat

Engine Coolant Thermostat for BMW Diesel Cooling Systems

The Vemo V20-99-0169 engine coolant thermostat is an OE-style replacement built for BMW diesel cooling systems that require an 87°C opening temperature. It is specified without a gasket or seal and without a housing, making it a direct thermostat service part for targeted cooling system repair.

Compatible With BMW 328d, 328d xDrive, 535d, 535d xDrive, X3, X5, and 740Ld xDrive applications across the listed model years. The VEMO line focuses on replacement components that match the original service format, and this thermostat follows that approach for BMW cooling system maintenance.

Key Features

• Part number: V20-99-0169
• Engine coolant thermostat for BMW diesel applications
• Opening temperature: 87°C
• Dimensions: 57 mm height, 40 mm length, 40 mm width
• Supplied without gasket/seal
• Supplied without housing
• Compact service part for thermostat replacement
• Cross-reference part numbers include 7 805 192 and 8 512 234

Detailed Description

The Vemo V20-99-0169 thermostat regulates coolant flow based on temperature, helping the engine reach and maintain its intended operating range. With an 87°C opening temperature, it is specified for BMW diesel cooling systems where stable thermal control is critical for drivability, emissions performance, and consistent engine temperature management. This part number, V20-99-0169, is listed for BMW 328d, BMW 328d xDrive, BMW 535d, BMW 535d xDrive, BMW X3, BMW X5, and BMW 740Ld xDrive applications in the provided fitment data.

VEMO product line components are positioned as replacement parts for service work where the thermostat is replaced separately from the housing. Because this unit is listed without a gasket or seal and without a housing, confirm the existing cooling system configuration before installation and match the thermostat to the vehicle application exactly.

What This Part Helps Address

• Engine temperature running too cool or too warm
• Delayed warm-up after cold starts
• Temperature fluctuation during normal driving
• Cooling system service on BMW diesel models
• Thermostat replacement when the housing remains in service

Installation Notes and Tips

Verify the OE part number, thermostat style, and opening temperature before installation. This V20-99-0169 thermostat is listed without a gasket/seal and without a housing, so inspect the sealing surfaces and related cooling system components during service. Drain coolant as required, follow BMW service procedures, and refill and bleed the system carefully to avoid trapped air.

Fitment examples include Fits 2017 BMW 328d, N/A; Fits 2014-2016 BMW 535d xDrive, N/A; and Fits 2015-2017 BMW X3, N/A. The same part number, V20-99-0169, is also listed for BMW X5 and BMW 740Ld xDrive applications in the provided data.

Quality Assurance

This VEMO thermostat is cataloged with precise dimensional and temperature specifications for application matching. Cross-reference numbers such as 7 805 192 and 8 512 234 are provided for identification against the same application family.