Problem with VW climatronic..display reads " _ _ C" instead of F

IF THE CLIMATRONIC DOES NOT GET ANY TEMP OR TEMP BELOW 5 DEGREES CELCIUS IT WONT GO ON!!!THE AC IS NOT WORKING!!!THE PROBLEM U ARE HAVING SEEMS TO BE A BAD CONTACT AT EITHER THE CONNECTOR AT THE TEMP SENSOR OR AT THE CONNECTORS UNDER THE RIGHT SIDE {DRIVERS SIDE}CONNECTORS LOCATED UNDER THE PROTECTIVE CAP OF THE STEERING HYDRAULIC RESERVOIR OR THE PLENUM CHAMBER {BLACK BOX LOCATED AT THE RIGHT SIDE OF THE CAR JUST BESIDE THE SERVO}LET ME KNOW IF U HAVE ANY QUESTIONS!!

Have you had the blend door motor checked to make sure it is working and shutting off the heater core air flow? I would suspect this may be the problem. Also have the pressures checked on the low side they should be about 28 PSI to provide cold air, if they are you have another issue like above.

change the O2 sensors and if that doesnt work then its a new cat ,you can test the sensors first if you have a automotive test meter though its easy with the right gear ,the two wires with the same colour should read 12v heater circuit and the other two should read a variation from 8v to 12v depending on engine speed

No heater valve on this car. Heat is controlled with temperature doors that blend the ac and heat to give you the desired temp. The core is probably clogged. It usually does not clog until the coolant wont pass through it but the fins get cruddy and don't transfer heat to you. Try taking the hoses off the core and blast water and air through it then retry the heat.

vw fit 3 types of aircon,
1.full climate control (you set temp is stays there)
2.climatronic (as your dealer said.....)
3.aircon std (cold draft)
you cannot change whats fitted to another type.

This is a mileage interval light that trips every 3,000 to 5,000 miles that indicates an oil change is necessary. You do not need a special tool to change your oil, nor do you need to bring the car in to the dealer.
1. Sit in the driver's seat of the Passat and close all the doors.
2. Position the trip/odometer button to display the odometer mileage reading, then hold it down with the forefinger on your left hand.
3. Turn the ignition key to the "key-on/engine-off" position to turn on all the power options for the Passat without actually starting the engine. At this point, a service indicator light will display (in the form of a wrench).
4. Press the minute adjustment button on the clock (or turn the knob clockwise on European manufactured Passats) and release the trip/odometer button.
Good luck and thank you using Fixya

There may not be any other way to fix it except to replace your instrument panel. That's where your immobilizer is located. Or you could try this:

Try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for about 15 seconds. Reconnect the battery. No guarantees - I found this info at tdiclub.com.

check fuses..came across a bora with much same problem..it turned out to be a coolent tempreture switch the heater gauge wasn't working and on diagnostics it was reading -41degrees celcius the fan was not running because it thought it was freezing outside also blew the fuse of the fan also

try to reciever. it reads the chip in ur key. it could be faulty

Hi - I have a 1999 Passat Wagon (2.8) with Climatronic A/C. The only way I know to turn off the unit is to switch the blower down to minimum and hold the button in. That switches it off. Press any button to reactivate.