Coolant Expansion Cap - Blue - 1.5 Bar - Fit Various Audi, VW And Porsche Models

This blue coolant expansion tank cap is a high-quality replacement part designed to fit a wide range of Audi, Volkswagen, and Porsche vehicles. Rated at 1.5 bar, it maintains correct system pressure to help prevent overheating and coolant loss under high engine loads or hot weather conditions.

Manufactured to OE standards, the cap features durable plastic construction with internal pressure relief functionality. It ensures a secure seal on the coolant expansion tank, preserving the cooling system`s performance and helping extend engine life.

Key Features:

• ✅ 1.5 Bar pressure rating – ideal for high-efficiency coolant systems

• 🔵 Blue cap – instantly recognisable, matches OE spec

• 🧊 Ensures consistent pressure in the coolant system

• 🧩 Compatible with multiple Audi, VW, and Porsche models (see below)

• 🛠️ Easy to install – direct fit replacement

Compatible With:

• Audi A2 (8Z), A4 (B5/B6), A6 (C4/C5), TT (8N), Q7 (4L)

• Volkswagen Golf Mk4, Bora, Passat (3B/3BG), Touareg (7L)

• Porsche Cayenne (I), Panamera (970)

Covers petrol and diesel variants from mid-1990s to early 2010s. See full application list above for exact engine and model fitment.