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5Q0122051B 5Q0122051CT Coolant Hose: Diagnosis and OE Fitment Guide
QUICK ANSWER A suspected coolant-hose leak or loss of cooling-system integrity should be confirmed through physical inspection and the workshop checks appropriate to this component before...
5Q0121070AB 5Q0121070BR Engine Coolant Pipe: Diagnosis and OE Fitment Guide
QUICK ANSWER A suspected rigid coolant-pipe leak or cooling-system bypass-line fault should be confirmed through physical inspection and the workshop checks appropriate to this component before...