rj21800
12-04-2019, 10:23 AM
CEL on. Car doesn't sound like a jet on start. Replaced a vacuum line that connects to #1 in the SAS diagram (#3 hose on this link http://207.244.103.173/bmw/enUS/showparts?id=DT53-USA-04-2002-E39-BMW-530i&diagId=11_7539). Still got the light. Took off #1 valve and cleaned it out, with a reset, CEL still comes on. Even when at operating temp, heat takes maybe another half hour to work, and other times it just straight blows cold. Autozone's guy thinks its the black and white check valve, which would be #7 however I cant find the location of this part in my car. Any thoughts?