Keeps your BMW running the way it should — this VAICO part restores the original function of a worn or failed Boost Pressure Control Valve OE Ref 1 158 113, built to OEM reference 34331158113 rather than a generic approximation.
VAICO identifies it as V20-1851, EAN: 4046001609275. Match that against OEM 34331158113 or your old part before fitting, particularly if your vehicle's had any running changes across its production years.
Confirmed for selected BMW vehicles. Use the vehicle registration lookup tool if you're not certain, or browse Engine Cooling System for other options.