Passat (B5) :: 2001 - A/C Won't Work When Computer Shows True Temp?
Jan 5, 2007
I have a weird problem with the AC on my 2001 Passat. Every so often, evidently at random, the computer will show an outside temp that is far below actual. It will sometimes drop to -58F, even when it is hot outside. It won't always go that far down--and it eventually returns to the true temperature. But when this happens, the AC turns off, or the heat turns up (I have the Climatronic thingy). We have to shut the climate control off altogether in order not to roast. Turning off the car is not always a fix for this, and neither is turning off the AC. I suspect a sensor of some kind has gone bad, but the dealership wants an exorbitant amount of money just to dig deep enough in the car to discover what is wrong. This has been going on for 6 months, in all weather, but with greater frequency lately.
View 3 Replies
Advertisement
From time to time, climate control will stop working. Buttons are not lit up or responsive, fans do not work, and computer doesn't show outside temperature. Problem can last a day, an hour, 10 minutes, or any other time frame. Most of the time once it stops working it will not start working until left parked and locked overnight. Sometimes when we start driving it would all of a sudden start working on its own. This has happened during multiple seasons and multiple weather conditions.
I took the car to Lexus dealer who decided it would be a smart idea to replace the whole climate control unit in the dash, well this past weekend the problem occurred again with brand new climate control unit in place.
View 6 Replies
I've had this car for a couple of years now and I think this week is the first time I didn't 'fill up' when I got gas. So now the trip computer is all confused on miles to empty vs the almost half tank I have on the fuel gauge. I've tried resetting the trip & holding the button to reset when miles to empty is displayed. I'm a little nervous with the miles to empty in the single digits now.
View 15 Replies
i have a few...
1. the max pressure on my tire is 44...my gas cap tells me otherwise...which should i follow?
2. i have a 2001.5 passat and the manual says i need a 91H load/speed rating...the tires on my car are 89H...what problems might that cause?
i keep all 4 tires inflated at 30 psi and check them every week...despite that i have uneven tire wear on the outsides as if they are underinflated...i am inclined to think that i got ripped off with my tires...what do yall think? i also regularly align, balance, and rotate my tires...
View 14 Replies
My climatronic has been goofy since I bought my 2000 v6 4mo. In the winter my heat never got really hot and now in the summer my A/C work sporadically. I had the thermostat changed along with the full timing belt service. I'm hoping I'll get full heat come september. My A/C, however works less and less often. The tech who did the timing belt change etc. said that there was a lot of pressure at the condenser, but that he thought a flap may have been stuck. he checked those and they are fine. The last two things he said should be checked are the external temp gauge(which is way off, reads 22'F when its like 85 out) or possibly I need a new climatronic head unit.
My questions are esentially these; Does the climatronic use the outside temp gauge to determine cabin temp? Do head units fail often? Are there temp sensors in the cabin other than those built into the climatronic head unit?
View 11 Replies
I've got a 2001 Volkswagen Jetta 1.8T Wolfsburg Edition.
Recently the temp gauge sits at 260* as soon as the car starts, but it's not actually overheating. Car runs/drives fine and will do so for many, many miles. Even in stop and go traffic. Was told the thermostat was replaced, but that didn't fix the issue although it doesn't sound like a thermostat issue since the car isn't actually overheating. Coolant is topped off as well.
I am thinking it's a bad sensor. Where is it located on this car?
Car is a friends and she said she took it to a shop to have the coolant checked and they were also the ones who did the thermostat.
View 4 Replies
Why, after so many repairs and $$$$ with a AAA Certified Repair shop, the temp gauge that sooner or later shows the needle HOT? Everything accounted for - thermostat 5x, radiator 3x, computer, maintenance, etc etc etc. " It's fixed !!" and then it's starts all over again. It's got 186,000 on it, couple of minor wrecks, all maintenance kept up, still driving it but the needle goes back up again and again. Funny thing, water levels remain the same, no smoke, no red engine light, slight smell of a hot engine but nothing else so far. Still, that needle!! This has been going on a couple of years. Want to figure it out before I get rid of the car. 2003 Civic Coupe DX ....
View 3 Replies
My engine temp indicator shows overheat to the red line, however when I stop the car I can put my hand on the radiator cap and leave it there. No signs of any leaks anywhere. The top radiator hose on the drivers side is hot. Engine runs fine. Oil on dipstick clean. I can't find anything to back up my temp indication. What else I can look for? 1987 chev caprice classic brougm ls 5.o liter.
View 1 Replies
I just picked up an 05 6.0 Limited and love it, but I can't figure out the overhead temperature gauge. It shows -40 degrees no matter what, but if I hit the outside temp button on the climate control, it shows the (mostly) correct temp. I verified that the temp sensor in front of the radiator is still there and hooked up, and it seems to me that Ford wouldn't go to the expense of using separate sensors for each readout, so I'm guessing that the problem is in the overhead unit itself. All of the other functions (compass, mileage, range) work just fine. I've seen several threads about the overhead dying completely as chips rattle loose. Is it also common for just specific functions to go out as things start to shake apart?
View 14 Replies
I have a 2006 Chevy Colorado, 5 cylinder, automatic, 4wheel drive with 62,700mi. 1st problem occurred in 2013 new thermostat was replaced then in 2015 temp. gauge shows overheating problem again. All diagnostic problems have been analyzed by mechanic and nothing further could be done. Mechanic suggests to take truck to dealer. The temp. reading still shows above normal operation and the engine compartment has signs of overheating also. If the truck driven on uphill range the temp. goes higher I refuse to drive in this condition which will surely ruin the entire engine.
View 2 Replies
Everything was going good on my V8 until this week. Out of nowhere, the following happened all at once:
1. Display shows the hood as open, even though it is not.
2. Wipers work only when they want to
Also, cover to ash tray/lighter in center console popped off its tracks.
How to deal with this stuff on my own, or am I headed to service?
View 8 Replies
Can you fit a TRUE dual exhaust on a 2002 Camry?
View 2 Replies
My 01 passat is telling me to check my coolant when it's working fine and its not overheating I think it might just be a sensor because my check engine light is on and it's reading thermostat.
View 6 Replies
i have a 01 b5 GLX 2.8L with the automatic climate control, well on occasion my temp will be reading fine than all the sudden drop to -36 degrees in 4 degree increments. when this happens my ac thinks its cold outside so it stops blowing cold air and blows hot air. i have to let the car sit with the ignition off for 15 min before it will reset. Is it my temp sensor that's bad and if so where is it located at?
View 10 Replies
2001.5 B5.5 Passat - When I put the passenger front window down it will not come back up via either the passenger door switch OR the drivers main switch. I suspected the driver main switch was bad so I replaced the unit; no difference. It will still open the passenger front window, but not close it.
I have tried the reset procedure of using the key in the door; this will both open and close the window but makes no difference in the operation of the switch on either door; window only goes down and won't come back up. The regulator itself is fine; the window is not sagging, banging as it goes down, binding up, etc. And the window does NOT start to come up and then stop and reverse; it just has no response to the switch input
View 3 Replies
The display on the computer of my Passat keeps going really dim to the point where I can hardly see it then other times its crystal clear, what it could be or how I could fix it?
View 12 Replies
I'm posting as a last ditch effort to try and rescue my 2001 Vw golf here's some quick details about the car then I'll go into the situation.
2001 Golf 1.8t 5speed
Euro customs stage 2 Aftermarket intake and downpipe
Still have front and rear O2 sensor and probably cat. Maybe..
Otherwise stock
201k miles
Okay so pretty much here's the rundown.. I was driving my car to work one day, then all the sudden lost complete throttle response to my car but was about to cruise at about 5-8mph to get to work and avoid towing. What is going on besides the EPC light was on and CEL was on. After work I discovered that the rear O2 sensor was hanging down and frayed.
Apparently from what I was told, that fries your ecu and put the car into a similar mode as mine. I then replaced the ecu with the euro customs ecu, I replaced the throttle pedal, and the throttle body since all I was getting was throttle codes. I am still not able to get rid of either EPC or CEL lights. The codes showing are p0638 and p2101. Yes I have tried to get the throttle body realigned or whatever you call it. However the vag com will not let you realign with the codes still in the computer which have been deleted but come back immediately.
The rear O2 is still unplugged and I still have little to no throttle response.
View 2 Replies
Ok so i was sitting at the light and my car was making weird noises like a computer was loading or something and then all of a sudden the car just randomly died ..
what is wrong???
View 2 Replies
2001 1.8T Wolfsburg
Started it this evening and went to the store, on my way there the car was right messed up. No lights, wouldn't go over 500 rpm (no throttle response), eventually was stuck on the side of the road. Reset my throttle back to OEM and everything went back to normal, car hasn't shown any trouble since but it's only been a couple hours. I don't want to end up stranded somewhere so I'm wondering if my computer is possibly failing or should I try replacing the throttle body if it does it again?
Car is not chipped and was OEM throttle before (to my knowledge).
View 4 Replies
2001 Prius. It started few months back where I get all kind of codes and the heat gauge shows up for like 30 seconds then the Triangle and Check Engine shows up. I used to pull over and disconnect the 12V battery but I found later on that the car would keep going fine even with all the Gauges on. I did replace the air filter. The issue almost gone away when the weather got colder. I just had to reset the battery after 40 mile or so.
Now, the overheat light comes on and after few seconds, the car just lose power and wouldn't respond to the gas. I have to disconnect the 12V battery or sometimes I just have to turn the car off for a minute or two and that might clear the lights for the overheat. The other day I turn the heater on to see if that would cool the car. Inside the car it was hot as hell but when I pulled over and checked the Radiator water, it was as cold. Is it possible it is the transmission that gets hot? The car now as not having enough power even just when I drive it while it is still cold. The only code I get is c1259. unplug the 12V battery and plug it back in is not clearing this code.
View 19 Replies
About a month ago, I started my car and the computer started beeping saying STOP! check coolant...so i did....it was on empty...this was rather weird to me because i remember seeing it on normal like a week ago....so i added the coolant to the max level in the tank.....Two weeks later it was on the MIN level line....so i added some again....then a week later it decreased a little again.... it would seem that its a leak....however i do not see any wet spots under the car...it seems that the coolant disappears due to driving the car... Could it be the coolant? Also, how does G12 coolant differ from regular coolants sold in auto stores?
View 24 Replies
