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  1. Volkswagen Passat B5 Discussion
    Ok so Im going to be doing a heater core flush in the near future and had a quick question. Im going to be using CLR but im not sure which size is needed. I see a 28fl oz and a 128 fl oz. Which size would you recommend from experience?..
  2. B5 Garage
    I noticed a small coolant leak during the cold weather. I changed the CTS and o ring. Still leaking so I looked closer after taking off the under belly liner. It's leaking from the drivers side around the coolant flange region. So I tackled the coolant flange O ring. Even though I haven't seen...
  3. Volkswagen Passat B5 Discussion
    I have issues with coolant water loss and discussed with some member earlier, a HG suspect as sniff test was done because coolant system was over pressurising. No signs of leakage was detected, no signs of engine over heating, no loss of power, heater was blowing nicely. Sometimes smell of...
  4. B5 Garage
    Turned on the heat on the first chilly morning and it's barely warm. I'm figuring it's either a clog or airlocked. If I flush it, what's better, water or air? The only thing that concerns me about using air is that I might damage the heater core and from what I can tell, it seems that the...
  5. B5 Garage
    I searched the archives and wanted to know how many people have actually replaced their own heatercore in a b5.5? Of the archived posts I read, I only saw one post that said they replaced their heatercore without disconnecting the AC lines. Has anyone else been able to replace the heatercore...
  6. B5 Garage
    It has been 1500 miles since my heatercore was replaced under warranty (03 v6). I ran fresh air almost constantly since, to help cleaning the remaining of coolant in the system, but last night I could see some fog on my windshield again! the AC would get rid of it right away, but regular vent...
  7. B5 Garage
    I got my heatercore replaced by the dealership about a week or 2 ago, and the coolant smell is gone (although now I still have a weird smell, probably mold). When driving at night (or since I live in SanDiego we could call that 'colder temperatures'), I get a fog on the windshield right away...
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