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It sounds like your WUR is kaput. The lowest temperature in the chart is 10 C, or 50 F, at which you should see control pressure between 1.0 and 1.4 bar in the 089 WUR. Warm control pressure should be 2.7 to 3.1 bar. It sounds like your cold pressure might be too low, and that the heater coil in the WUR is not working. Did you check for power to the WUR.
Your car should have an 045 or an 069 WUR, as far as I know. However, I think that the 089 will work okay.
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