SL/R230: 2003 SL500 Heater not working
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Mercedes SL500 R230
2003 SL500 Heater not working
Hi All, new to the forum, just bought my wife a 2003 SL500 and we have found that the heater doesn't work. The aircon and blower work but the heater does not come on or warm the car. Does anyone have any ideas for me please? Thanks a lot in advance!
#2
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#4
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I HAD THE SAME ISSUE TWO YEARS BACK. REPLACED THE HEATER CONTROL VALVE UNDER THE WINDSHIELD WIPER BAY AND PROBLEM SOLVED. THE OLD UNIT HAD WATER PENETRATING THE MOTOR AND RUSTED THE HECK OUT OF THE INTERNALS. VALVE COST AROUND $35 AFTERMARKET!