. . The air passing through the cracks will make whistling noises. To apply or release the parking brake, switch off the ignition, switch it back on again and apply or. When the engine is on and the AC is on high, low pressure readings should be around 30 psi and the high pressure side should be about 250 psi depending on your car. Forums. Hello guys , am having a Mercedes Benz C class (w 203). Mar 19, 2007 guys. . In addition. Ignoring multiple calls and messages and multiple emails. 3 Posts. If your vehicle&x27;s check engine light comes on and after pulling the code you find a P0480 displayed, if refers to the engine cooling fan circuit. . In some cases, when the ecu is bad, the cooling fan will run at high speed. The Mercedes Benz CLK second generation (W209) was a great cruiser that can help you to cover long distances. In this way, the belt keeps your fan, air conditioning, power steering pump, water pump and alternator working. 5 to 2. . The problem seems to be with the dual contact relay that when energised brings on both the cooling fans. Again, if that doesn&x27;t work, it&x27;s time to replace your fridge. . . Oct 23, 2010. Question type Maintenance & Repair. . The first thing that you would want to do is locate the fuse for your Escapes radiator fan and make sure that it hasnt blown. The team, feeling encouraged on Friday. 6R, which we bought brand new back in Feb 11 and only has 4k miles, seems to be having issues with the cooling fan. I am forced to switch on the engine and then. 1. 1. Car Service.