I dont have engine cooling problems. I have a/c vent temps rising to beyond where I want them. In cars like the ML320, they have dual fans and have no vent temps climbing in stop and go traffic.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual