Golf 1J Radiator Leak: Repair Guide & Info (Solution)

Coolant leak at the radiator, in the area of the side water tanks.

Cause:
In rare cases, due to insufficient sealing pressure between the radiator and the side water tanks, coolant leakage may occur, especially when tolerances are unfavorable.

Solution:
Perform a leak test of the cooling system. If a coolant leak is detected in the area of the side water tanks, the cooler must be replaced.