TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
BUZZING OR CLICKING NOISE FROM THE SCR TRANSFER PUMP. There is a buzzing or clicking noise coming from under the car that can be heard from the passenger compartment when the engine is at idle. Normal operation of the SCR transfer pump delivering diesel exhaust fluid (DEF) from the passive to active tank.

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Date Published
NOV 01, 2016
NHTSA TSB #
10146785
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