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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 02-14-2013, 12:17 PM   #1
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Join Date: Feb 2013
Location: London
Posts: 3
My Ride: BMW 320ci M Sport
Bmw 320ci heaters not working

Hi everyone,

This is my first post to see if i can get help to fix a problem with my e46.
I have a 2004 320ci coupe and the heaters in the car dont function properly. They blow out cold air once car is started and continue to even though i have it on max... Until the car reaches from what i have gathered over the past week a steady speed over 50 on the motorway. Then the yellow light for the rad water comes on and then the warm air starts to come out. After approx 5 mins the yellow light goes off and the cold air returns. I have checked the water level it had been fine no top up needed no leaks. Any ideas what it could be?

Thanks in advance

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