Question about 2004 Volkswagen Passat
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
OKEY TRY TO GET A CODE WITH SCAN TOOL AND IF YOU CANNOT CONTACT WITH YOUR ECM YOU HAVE TO GET FIX YOUR ABS CONTROL UNIT.
BOSH ABS MODULE GIVES PROBLEM ON THAT MODELS I HAVE SAME PROBLEM WITH MY 1999 PASSAT V6 I SENDED MY PART TO GET FIX AND WAITING FOR THE COME BACK.
I DRAIN THE BRAKE FLUID FOR THE FIX LEAK FROM MY CALIPER AND I REMOVE THE ABS UNIT AND TAKE THE ELECTRONIC MODULE OUT AND SEND THE FOR THE REPAIR.
Posted on Jun 03, 2009
These problems do not seem to be related at all. The cause of the warm ac air could be several things from a low refrigerant charge to a plugged condensor fins to the compressor clutch not kicking in. You just have to follow a systematic approach when diagnosing these problems.
Posted on Jun 09, 2009
Tips for a great answer:
Feb 17, 2015 | 1999 Volkswagen Passat
May 03, 2012 | 2002 Volkswagen Passat
Jun 21, 2010 | 1999 Volkswagen Passat
May 26, 2010 | 2000 Audi A6
Sep 09, 2009 | 2004 Volkswagen Passat
Aug 27, 2009 | 1999 Volkswagen Passat
Jun 19, 2009 | 2004 Volkswagen Passat
Apr 24, 2009 | 1999 Volkswagen Passat
Feb 18, 2009 | 1999 Volkswagen Passat
Aug 11, 2018 | 2004 Volkswagen Passat
65 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: