Air conditioner cuts out then comes back on

Asked by Jun 20, 2017 at 11:15 AM about the 2015 Volkswagen Passat TDI SEL Premium

Question type: Maintenance & Repair

On a long trip my AC cuts out after driving 75 miles.  I stop the car, shut off the
engine, wait a few minutes, re-start the engine, the AC works again.

1 Answer

Intermittent A/C Fix Just wanted to share a quick success story, in case anyone else out these is having a similar problem: Over the last couple weeks, my A/C began functioning very eratically. Most mornings on the way to work, my A/C would come on properly when I first started the car. However, after about 5-10 minutes most morning, even though the A/C switch remained lit, the A/C would cut out and produce warm air. It turned out that the compressor clutch was disengaging the A/C intermittently. Usually, it would function immediately if the car had sat unused for some time. But, whenever the A/C would flake out, I would have to turn it off and wait some time before I could get it to come on again. I eventually tracked this down to relay 384. If you open up old 384, you'll find that is contains a PC board with a large relay/solenoid and a handful of diodes, caps, and one lovely IC. When this relay switches on. it engages the A/C compressor. In my case, the pin of the relay that should go hot when the A/C is engaged was soldered to the board with a pathetically thin quantity of solder... Ah ha! Each time the A/C was engaged, the solenoid pulled the switch over to this weak contact and put pressure on it. It seems that all this daily rocking back and forth actually detached this weak solder joint. One minute of work with a soldering iron and my A/C is back!

Your Answer

Volkswagen Passat Experts

  • #1
  • #2
    Chrisand Edwards
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Volkswagen Jetta
433 Great Deals out of 28,729 listings starting at $1,900
Used Honda Accord
592 Great Deals out of 92,752 listings starting at $1,495
Used Volkswagen CC
54 Great Deals out of 2,291 listings starting at $4,400
Used Toyota Camry
890 Great Deals out of 73,115 listings starting at $1,400
Used Audi A4
191 Great Deals out of 12,528 listings starting at $1,700
Used Nissan Altima
820 Great Deals out of 68,383 listings starting at $750
Used BMW 3 Series
951 Great Deals out of 33,308 listings starting at $1,300
Used Honda Civic
398 Great Deals out of 52,416 listings starting at $1,200
Used Hyundai Sonata
386 Great Deals out of 51,068 listings starting at $1,300
Used Volkswagen Tiguan
179 Great Deals out of 23,592 listings starting at $4,200
Used Ford Fusion
673 Great Deals out of 59,816 listings starting at $1,991
Used Chevrolet Malibu
664 Great Deals out of 48,938 listings starting at $1,500
Used Mazda MAZDA6
145 Great Deals out of 10,290 listings starting at $995
Used Volkswagen Golf
74 Great Deals out of 4,633 listings starting at $900
Used Kia Optima
363 Great Deals out of 29,621 listings starting at $1,950

Used Cars For Sale

2015 Volkswagen Passat TDI SEL Premium For Sale
7 Great Deals out of 481 listings starting at $11,356
2014 Volkswagen Passat TDI SEL Premium For Sale
3 Great Deals out of 57 listings starting at $12,995
2013 Volkswagen Passat TDI SEL Premium For Sale
4 Great Deals out of 46 listings starting at $9,991

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.