TOPRAN 104 390 Expansion Tank, Coolant

Compatible with AUDI 80 B4 Sedans (8C2) , AUDI 80 B4 Avant (8C5) , AUDI CABRIOLET B3 (8G7) Show more info
This TOPRAN expansion tank is designed to manage coolant system pressure and volume. It ensures optimal engine temperature regulation.
11.22 EUR
inc. VAT 21%
In stock 38
Delivery 1 day (13.05.2026)
PN 104 390
Make TOPRAN

The TOPRAN 104 390 expansion tank, also known as a coolant reservoir, plays a crucial role in your vehicle's cooling system. It serves as a storage point for excess coolant that expands when the engine heats up, preventing pressure build-up within the system. By accommodating this expansion, the tank helps maintain the correct coolant level and pressure, which is vital for efficient heat dissipation. A properly functioning expansion tank prevents overheating and potential damage to engine components. This specific unit from TOPRAN is engineered for reliable performance and durability, ensuring it can withstand the demanding conditions of a vehicle's engine bay. Regular inspection of your expansion tank for leaks, cracks, or discoloration is recommended. A compromised tank can lead to coolant loss and subsequent engine overheating. Replacing a faulty expansion tank with a quality part like the TOPRAN 104 390 is essential for maintaining the health and longevity of your engine.

  • Manages coolant expansion and contraction.
  • Maintains optimal cooling system pressure.
  • Prevents engine overheating.
  • Durable construction for long service life.
  • Ensures consistent engine temperature regulation.
  • Direct fit for specific vehicle applications.
  • High-quality materials for reliability.
Heating/Cooling
with coolant level switch connection
Forward/Reverse
with reverse gear
Additional article/Additional info 2
with sensor
Number of pin contacts
2
Additional article/Additional info 2
without cap
Plug connector housing shape
round
Material
Plastic
  • AUDI
    • 80 B4 Sedans (8C2)
      • 1.9 TD (55kW/75PS)
      • 1.9 TDI (66kW/90PS)
      • 1.6 (52kW/71PS)
      • 1.6 E (74kW/101PS)
      • 2.0 (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 2.0 E 16V (103kW/140PS)
      • 2.3 E (98kW/133PS)
      • 2.0 E 16V (101kW/137PS)
    • 80 B4 Avant (8C5)
      • 2.0 (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 2.0 E 16V (103kW/140PS)
      • 2.3 E (98kW/133PS)
      • 1.9 TDI (66kW/90PS)
      • 1.6 E (74kW/101PS)
      • 1.9 TD (55kW/75PS)
    • CABRIOLET B3 (8G7)
      • 2.0 E (85kW/115PS)
      • 2.3 E (98kW/133PS)
      • 1.9 TDI (66kW/90PS)
      • 1.8 (92kW/125PS)
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