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SC430 - Query on Air Conditioning


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My SC430 started blowing hot air through the AC, it was checked by a Lexus main dealer and there was no leakage. As they wanted £168 labour per hour to do further investigation thought I'd try here for any suggestions on i) Clues as to the issue? ii) Any recommendations for a good Independent Lexus specialist around the Bristol area or perhaps South Wales. Someone had suggested Osaka in Newport and wondered whether any members had experience of this garage? Thanks in advance for any pointers or suggestions.

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My cabin inlet sensor was left disconnected after airbag was replaced and gave a similar symptom . I found it myself . its in under the steering column fairing to the left . there is also a rubber servo pipe to it from the heater box so check both .  There is a little aperature/ grill where it is as it senses cabin temp 


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