Assuming this is the SDL. Sounds like the serpentine belt saving feature, which cuts the compressor clutch power signal, is the issue.
In the KLIMA relay, the circuitry compares the compressor speed (from a sensor on the back of the compressor) to the engine speed, and if they are too far apart, no power is supplied to the compressor clutch. Could be bad KLIMA relay, bad AC compressor speed sensor, bad tachometer speed sensor, bad wiring, bad fuse, bad HVAC push-button controller unit, bad engine control computer (tach signal goes through computer for distro to tachometer and KLIMA relay), bad clutch. All need to be tested and the problem(s) found and fixed. -- Max Dillon Charleston SC '87 300TD '95 E300 _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
