Rein ABH0237 Engine Oil Separator - Upper

OE Breather Valve Replacement

Rein ABH0237 is an OE-quality engine oil separator breather valve built for European applications that use an upper breather valve assembly. It is a direct replacement for the original part, with fitment coverage for select Audi A4, A5, A6, Q3, and Q5 models.

Use Rein ABH0237 when you need a replacement breather valve for Audi engine service and want an OE-style part number match for the same application.

Key Features

• Direct replacement for easy installation
• Manufactured to strict engineering quality standards
• Produced using high-quality materials
• OE-quality breather valve for European vehicles
• Application-specific design for the listed upper position

Detailed Product Information

Rein ABH0237 is a breather valve designed as an OE-quality replacement for the factory component. It is built to match the original configuration used on select Audi engines, including 2011-2018 Audi Q5, 2012-2015 Audi A6, 2012-2017 Audi A5 Quattro, and 2013-2016 Audi A4 applications. This part number is also used on select Audi Q3 and Q3 Quattro models in the upper position. If you are searching for an Audi breather valve replacement, Rein ABH0237 provides a direct-fit service part for the listed vehicles.

This part cross-references URO 06H103495AK for the same application.

Common Issues This Part Can Address

• Cracked or leaking breather valve housing
• Oil vapor separation concerns in the crankcase ventilation system
• Rough idle caused by a failing upper breather valve
• Vacuum-related drivability issues tied to a worn valve assembly
• Need for an OE-style replacement during engine maintenance

Installation Notes and Tips

Confirm the engine configuration and upper-position fitment before ordering. Body fitment varies by model year, including 2012 Audi A4 and A4 Quattro applications built from 3/31/12. Compare the original part number and mounting location to Rein ABH0237 before installation. For best results, inspect adjacent crankcase ventilation components during service.

Quality Assurance

Rein Automotive OE-quality breather valves are engineered to meet strict quality standards and are manufactured from high-quality materials for direct replacement use. Rein ABH0237 includes a 24-month or 24,000-mile warranty.