Question about 2003 Volkswagen Passat
Replacement fuse ok for a few miles ,then blows!
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: heater problems in my vw passat
Try removing he heater hoses going into the firewall(when cooled)and blow the heater core out with compressed air.Or you could have the cooling system flushed.
Posted on Jan 14, 2009
SOURCE: 2004 VW passat not heating
COLD AIR WHEN IDLING COULD BE...
1) Low on coolant - the most common reason for this heater problem. Make sure your coolant level is full.
If the level is low, it could be because the radiator cap is not sealing well or it could also be a cracked overflow container (hot coolant that bleeds out of the engine and drops to the street so you never see the puddle on your driveway).
2) An air-lock in the coolant system - it needs to be burped. Park your car facing-up the steepest hill you can find. Remove the radiator cap a (be careful - best to do when engine is cold) and rev engine to 2000 RPM for 60 seconds - hopefully the air will burp out the cap. Top it off with 50/50 antifreeze.
3) A disconnected or cracked vacuum line. I've heard about this one but never investigated.
Posted on Feb 28, 2009
I have the same problem, but mine was because someone put stop leak in it! otherwise, check my profile, someone posted a answer that may help you.
Posted on Mar 30, 2009
There is an electrical relay that is malfuctioning. I had the same problem on my 2000 VW Passat. I just got it fixed, part cost 48 dollars and labor will be about an hour.
Posted on Aug 05, 2009
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