NTK EF0079 coolant temperature sensor for the 1999-2006 Audi A4 4-cylinder 1.8L, the 2000-2001 A4 V6 2.8L, the 2004-2005 A4 V6 3.0L, the 2005-2008 A4 4-cylinder 2.0L and other vehicles measures engine coolant temperature and sends an analog signal to the ECM. The ECM uses that signal for the air/fuel ratio, the cooling fan(s) and the temperature gauge.
- Thermal conductive grease inside the brass housing increases sensor response time
- Proper thermal conductive grease gives accurate temperature transfer to the thermistor
- Thread sealant or o-ring installed where applicable
Quick facts
- Part: NTK EF0079 coolant temperature sensor
- Also called: engine coolant temperature sensor
- Fits: the 1999-2006 Audi A4 4-cylinder 1.8L, the 2000-2001 A4 V6 2.8L, the 2004-2005 A4 V6 3.0L, the 2005-2008 A4 4-cylinder 2.0L and other vehicles
- Position: Rear, right, upper
- Material: Brass housing
- Condition: New
A failing engine coolant temperature sensor can show up as a check engine light, erratic or no gauge or fan operation, or overheating. A faulty cooling fan, a bad thermostat, wiring trouble or low coolant can be behind these signs too, so find the cause before buying a sensor. This listing is one sensor, and the 2004-2005 Audi A4 V6 3.0L takes one.
Fits
The 1999 Volkswagen Jetta 4-cylinder 1.8L, the 1999-2004 Jetta 4-cylinder 1.9L or V6 2.8L, the 1999-2005 Jetta 4-cylinder 2.0L and the 2002-2005 Jetta 4-cylinder 1.8L take this sensor, as do many other Audi, Volkswagen and SEAT models. It is also a coolant temperature sensor for the 1999-2005 VW Passat and a replacement coolant temperature sensor for the 2005-2008 Audi A4 4-cylinder 2.0L. Wire length, probe length and thermistor placement match OE. Driving something not named here? Look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: rear, right, upper
- Quantity per vehicle: 1
Build and materials
- Material: brass housing
- Condition: new
In the box
One coolant temperature sensor, with mounting clip(s) where applicable.
Interchange: 158-0629 · TS-477 · 211-1110
059 919 501A · 078 919 501C · 078 919 501A · WT5129 · TS10236 · TS5729 · 2CTS0075
This part cross-references / interchanges with the following part numbers:
059 919 501A, 078 919 501C, WT5129, 158-0629, TS10236, TS5729, 2CTS0075, TS-477, 078 919 501A, 211-1110
Frequently Asked Questions
Is this the coolant temperature sensor for a 2002-2005 VW Jetta 4-cylinder 1.8L?
Yes. NTK EF0079 fits the 2002-2005 Volkswagen Jetta 4-cylinder 1.8L, and one sensor is the quantity that car takes.
Is this a temperature sensor for the 2004-2005 Audi A4 V6 3.0L?
Yes. NTK EF0079 fits the 2004-2005 Audi A4 V6 3.0L, which takes one sensor per car.
Is the housing on this NTK coolant temperature sensor made of brass?
Yes. The housing is brass, with thermal conductive grease inside it to increase the sensor's response time.
Where on the engine does this type of coolant temperature sensor mount?
This coolant temperature sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold.
Do the wires and probe on this NTK sensor match the original?
Yes. The wires and probe length match OE, and the thermistor placement inside the housing also matches OE, which is intended to give proper output.
