On the lower radiator hose. It has a connector and a black plastic clip.
If you have a 1999 Passat V6, the coolant temperature sensor is located in the lower radiator hose.
It's on the rear coolant flange way in the back by the firewall.
inside air filter housing
It's located near the oil filter and on oil cooler/filter plate.
On a 2005 Volkswagen Passat, the coolant temperature sensor is typically located near the thermostat housing, which is situated on the engine block. It is usually positioned on the cylinder head or the engine coolant outlet, making it accessible for both monitoring and replacement. The sensor may have a wiring connector attached, and it's important to ensure the engine is cool before attempting any inspection or replacement.
There is not a temperature fuse it has a coolant temperature sensor at the back of the cylinder head
The OEM part number for a mass air flow sensor on a 2001 Volkswagen Passat is located on the part themselves. The number for this part is 0280218063.
The hall sensor can be found on top of a Volkswagen Passat engine. The sensor is placed under the valve cover next to the timing belt.
if your car is driven by a cambelt not a chain then the sensor is located on the bottom pulley, when you pull this pulley out it will be there, its a bi black thick wire.
behind the oil filter
Under the driver seat.
location bank 1 sensor 1