Just purchased a 94 e320 coupe.

When I accelerate hard my windshield has been fogging up due to air leaking out of the dash vents. This is occuring even though the temp control unit is off (air does not blow during normal driving conditions, only under hard acceleration).

Has anyone else experienced this on a w124? Is it a faulty flap or vacuum?


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94 E320 Coupe
Monotone Pearl Black, 17" AMG Monoblocks, Alpine 9835, JL Audio 500/1 Amp, 10" JL Audio W7 Sub

94 E420 (SOLD)
500E swaybars, 2.82 Diff, Monotone 040 Black, 17" AMG Monoblocks