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allowing the ECU to deliver the correct fuel mass for optimal performance
Drop-in Fit: No additional brackets or adapters required
though professional installation is recommended
it can cause an immediate loss of oil pressure in the system
Direct Fit: Exact replacement for 077906265J
Behr Engine Coolant Expansion Tank (8E0121403) – Fits Audi A4 B6/B7 8V allowing the ECU to deliverThis Behr Engine Coolant Expansion Tank (part number 8E0121403 376737131) is a direct OE replacement for Audi A4 and A4 Quattro models from 2002 2009. It stores excess coolant and helps maintain system pressure, preventing boil overs and coolant loss. Made by MAHLE Behr, a leading OEM supplier, this tank ensures factory quality and durability. Key Features & Benefits Direct OE replacement: Exactly matches the fit and function of the original expansion