Motorad T111 Engine Coolant Reservoir Cap - Primary

Engine Coolant Reservoir Cap for Audi and Lamborghini

The Motorad Standard T111 engine coolant reservoir cap is a threaded, pressurized replacement cap built for cooling systems that require a 23 PSI rating. It is made from black plastic and uses proper relief and vacuum valves to help maintain correct reservoir pressure in demanding daily-driver and performance applications.

Compatible With Audi A4, A5, A6, A7, A8, Q5, Q7, Q8, SQ5, SQ7, SQ8, RS models, and Lamborghini Urus applications across the listed years, this cap is a direct-fit service part for vehicles using a standard coolant recovery system. The Motorad T111 is also cross-referenced to BBB Industries 7111 for the same application.

Key Features

• Engine coolant reservoir cap with threaded attachment
• Standard design with a 23 PSI pressure rating
• Black plastic construction
• Pressurized cap for coolant recovery system use
• Built with relief and vacuum valves for cooling system control
• Easy to install and remove during routine service
• Motorad Standard T111 replacement part

Product Details

The Motorad Standard line focuses on OE-style cooling system service parts built to meet OEM specifications. This T111 coolant reservoir cap follows that approach with a 2.45-inch diameter, threaded fitment, and a pressurized design intended for vehicles that rely on stable reservoir pressure to manage coolant expansion and recovery. It is a practical replacement for Audi and Lamborghini models that call for a 23 PSI cap, including long-tail applications such as a 2021-2026 Audi A6 allroad coolant reservoir cap replacement, a 2022-2026 Audi Q7 coolant reservoir cap replacement, or a 2018-2026 Lamborghini Urus coolant reservoir cap replacement.

Use the Motorad T111 when replacing a worn, cracked, or pressure-weak reservoir cap on compatible Audi and Lamborghini cooling systems. This part number, T111, is also listed under interchange references for related OE and aftermarket applications.

What This Part Helps Address

• Coolant loss from a cap that no longer holds pressure
• Reservoir pressure irregularities in a pressurized cooling system
• Vacuum valve issues that affect coolant recovery after engine cooldown
• Cracked, aged, or hard-to-remove plastic cap assemblies
• Service replacement for Audi and Lamborghini coolant reservoir cap applications

Installation Notes and Tips

Confirm the reservoir neck style, diameter, and pressure specification before installation. The T111 uses a threaded attachment and is not vented, so it should be installed only on systems specified for a 23 PSI pressurized cap. Inspect the reservoir sealing surface and surrounding cooling system components before fitting the new cap. For fitment verification, match the vehicle application exactly, such as Fits 2021-2026 Audi A6 allroad, N/A or Fits 2018-2026 Lamborghini Urus, N/A.

Quality Assurance

Motorad states that this cap is manufactured to meet OEM specifications and is quality tested for demanding automotive cooling systems. The design uses high-quality components with proper relief and vacuum valves to support consistent cooling system operation.