Diesel Engine - High Pitched Whine After Shut Down
26 08 03Oct. 16, 2008
2018962
Vehicle Information
Condition
TDI Common Rail High Pitch Whine Noise after Switching Ignition OFF
Whining and/or clicking noises heard from engine compartment, or from under vehicle, after switching ignition off.
Technical Background
With the implementation of the new "Clean Diesel Technology", changes to the EGR system were implemented as compared to previous Diesel engines.
After switching ignition off, the EGR system must go through an adaption of the valves to maintain calibration.
These noises are considered normal and no repairs are necessary.
Production Solution
No production change required.
Service
DO NOT replace any parts for this condition.
Warranty
Information only.
Required Parts and Tools
No Special Parts Required.
No Special Tools required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information.