Antifreeze drip on drivers side inside cab of 2000 Audi A6 2.7T

Is the carpet wet on the passenger side? Sound like you got a heater core leaking.Have fun replacing it.

Check coolant level, if it's losing coolant, you may have a heater core leak. Does it smell like antifreeze in vehicle when defroster on? If by chance your ducting drain is plugged, it may just be water or condensation build up inside where core is. Antifreeze leak will also put a sticky film on inside of windshield, so if you wipe it with finger and it feels sticky, it may be a core leak. Be sure to double check heater hose connections in to firewall/heater core, just to be sure your leak isn't a bad hose connection before going to far if core appears to be leaking. A pressure test on system may give you a better idea what's going on. If all checks out and no leak apparent, be sure your AC compressor is engaging when in defrost mode, as that is what helps remove the moisture in the air during defrost. If compressor is not engaging, it will take much longer to remove moisture in the cabin.

A bad heater core could cause a couple of isses. If it is plugged internaly you would get no heat. If it is leaking you would have anti-freeze dripping into the cab on the right side or dripping under the car in the area of the right floor board.

have a cooling system pressure test done to see if there is a leak

YOUR HEATER CORE IS GOING BAD. SOONHEATER WILL NOT WORK AT ALL. PLEASE REMEMBER ANTIFREEZE CAN BE TOXIC.

Remove rad cap start vehicle be sure engine antifreeze is full.After running for 5-10 minutes you should see air bubbles rising nonce they stop close cap you should have heat.If you do not perhaps you might consider removing the thermostat to make sure the spring side of thermostat is facing the engine and not the thermostat housing.

What you describe is quite normal. While the engine is running and the coolant is circulating the thermostat maintains the engine within its operating temperature range. When the engine is switched off there is still considerable heat within the engine and the coolant will continue to absorb this heat. With no coolant circulation, the coolant inside the engine will register a temperature rise to the extent your gauge measures. This temperature rise may persist for up to 15 minutes until the natural thermo-syphon of the cooling system starts to dissipate this heat build up and the engine starts to cool down. Because the cooling system is pressurised, the coolant is prevented from boiling off at this temperature above boiling point. Once the engine is restarted the coolant flow is re-established taking this excess heat from the engine and the system temperature returns to normal.

There are two causes of fluid dripping from the heater core/ac evaporator housing. First, if it is running inside the vehicle and getting the carpet wet as described then it is most likely a bad heater core leaking antifreeze into the cab. Secondly, if it is dripping outside only when the a/c or defroster is running then it is the normal expulsion of condensation and is harmless.

I would say that it's your heater core that has a leak or one of the connections in the dash near it. There's nothing else inside the dash area that would be leaking antifreeze. Make sure you are keeping the levels of coolant up to specs and take care of that asap. Good luck!

yes its your heater core. it went bad and needs to be replaced. it is housed underneath the dash