Make sure your Vacuum Modulator isn't leaking. Mine did once and burned trans. fluid through the intake manifold coming from the vacuum hose that connects to the VM. When my trans. fluid was low, I checked the VM vacuum hose at the intake and I could see fluid in the vacuum line. Replaced the VM and problem solved.

Just a thought.

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible