BMW TSB #B170100

1999 BMW 740

TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
The lower radiator coolant return hose may come in contact with the secondary air system check valve flange gasket when the engine coolant is at operating temperature due to coolant system pressure and expansion of the hose.

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Date Published
OCT 16, 2023
NHTSA TSB #
10244236
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