My wife told me she has got a couple of whistles the other day, I laugh, sorry I did, then she continued. The whistling noise was when she was driving the 400E, and came from inside the cabin. Yesterday when we were driving I heard the whistle noise (about 1 to 2 seconds) and I believe its coming from the HVAC system. When the noise occurred, I thought it happened when the air distribution was changing in the center vents. A vacuum leak?
Thanks, enjoy your drive, timreid

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timreid
1992 400E
euro lights
500E sway bars
210 16in wheels