A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Audi A4 B6 1.8T Overheating Issue

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Old May 11, 2020 | 05:27 PM
  #21  
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Perhaps keep bleeding the top screw until only coolant comes out? Air hissing usually means it needs to be bled. You also have to bleed the top heater core hose at the firewall next to the battery. The procedure is something like start engine and maintain engine speed of approximately 2000 RPM for approximately 3 minutes. Then allow engine to run at idling speed until lower hose on radiator becomes hot. Then bleed.

Unless the waterpump is bad?

-Brian
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Old May 12, 2020 | 04:42 AM
  #22  
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Have you done any work to the car or did this just start.
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Old May 12, 2020 | 06:55 AM
  #23  
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Sounds like water pump to me.. Have you checked that your getting coolant flow when you rev the engine?
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Old May 12, 2020 | 11:22 AM
  #24  
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Assuming he;s done no work, yeah. Thermostat would act a little differently,
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