Problem Kühlmittelanzeige, MKB CBAB, CBBB, CBDC, CBAA, CBBA (Solution)

Problem: With the 2.0 TDI CR engines with the engine codes CBAB, CBBB, CBDC, CBAA, and CBBA, the coolant level indicator lights up even though the coolant level is normal and there is no loss of coolant.
When the engine is cold, after opening the coolant reservoir cap, the fluid level may reach the normal level in the coolant reservoir.

Cause: Overly flexible coolant hoses.

Solution: Stickers for lower 'min' coolant level and modified container lid 3C0 121 321