Question about 2007 Volkswagen Passat Sedan

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How do I find the coolant temperature sensor on a 2007 Volkswagen Passat, 4 cylinder?

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On all vw model it located the @ the bottom line or radiator hose.

Posted on Dec 29, 2010

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2001 Volkswagen passat 1.8l turbo the o ring on sensor was broke so water kept leaking out got that fixed but now the car will not keep no water in the coolant resovoir tank


Is your car overheating ? Might not be related at all. Run your Passat until it reaches operating temperature and check to see if the fans behind your radiator turn on. The temperature sensor might be bad, when you replaced the O ring, did you also replace the sensor ?

Oct 18, 2015 | Volkswagen Cars & Trucks

1 Answer

Replaced engine coolant sensor on 2003 volkswagon passat 4 cylinder w/ turbo and need to know how to reset the engine control module or reset all of the on board diagnostic codes


Try:
1.) Press wrench button in
2.) Press key to on position, but do not start
3.) Release wrench button
4.) Press 'M' minute button

May 12, 2012 | 2003 Volkswagen Passat

1 Answer

Cooling sistem code#p2181 volkswagen passat the antifreeze is leaking


Replace the ( CTS ) Coolant temperature Sensor. VW oe only...Been updated.

Check the bottle is full. Do not use coolant sealers in this engine! Fix the leak.

Jan 11, 2011 | 2004 Volkswagen Passat

1 Answer

I need the location of the ECT


ENGINE COOLANT TEMPERATURE SENSOR LOCATION IS ON THE UPPER RADIATOR HOSE CONNECTION ON THE CYLINDER HEAD.

Nov 17, 2010 | 2003 Volkswagen Passat

2 Answers

VW passat coolant warning light on


There's a level sensor plugged into the bottom of the coolant reservoir. Unplug it and clean the contacts with electrical contact cleaner. If that doesn't do the trick, replace the sensor.

Dec 01, 2009 | 2005 Volkswagen Passat

1 Answer

Where is the coolant temp sensor on the 2003 VW Passat GL


The coolant temperature sensor on the V6 Passat is located on a pipe
that crosses between cylinder heads on the firewall side of the engine.
A. You will need to remove the plastic cover over the intake manifold.
B. Remove the air filter housing
c. disconnect the Mass Airflow Sensor
D. Loosen the clamp on the far end of the flex pipe going into the intake
Gently pry the flex pipe off the plastic housing and slide it off
the sendor is located around E.

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Nov 04, 2009 | 2003 Volkswagen Passat

3 Answers

Where is the temperature sending unit on a 1999 VW Passat located.


VW Passat & Audi A4 1990-2000

Motronic System
The Engine Coolant Temperature (ECT) sensor is mounted in the water outlet on the back side of the head. If you vehicle still has a original VW part it will be black in color with a four terminal connector. This device signals the engine management system with the current coolant temperature, the ECU takes this information and uses it to control other such circuits as the idle speed, knock control system, oxygen sensor circuit, exhaust gas recalculation, and fuel tank venting. It is also important to note that if at any time ECU does not receive a signal from the ECT it will substitute a value of 176°F (80°C).

VR6
The Engine Coolant Temperature sensor is mounted in the thermostat housing. The body of the sensor will be blue and the sensor will be blue and have two terminals if it is an original factory VW part.


The engine coolant temperature gauge uses a heat sensitive sending unit to transmit an electrical signal to the gauge. The sending unit is a heat sensitive variable resistor that is located on or near to the cylinder head and threads into an engine coolant passage. The sensors are a Negative Temperature Coefficient (NTC) type. As the temperature increases, the electrical resistance of the sensor decreases. As the coolant temperature changes, so does the resistance of the sensor. The gauge is calibrated within the operating range of the sensor and interprets the resistance value to display the coolant temperature.On models produced prior to 1994, the engine coolant gauge temperature sensor is a single wire terminal sensor.

Beginning with model year 1994, the engine coolant gauge and the Engine Control Module (ECM) temperature sensors were combined into one sensor with 4 terminals. The basic operation remains the same in that their resistance decreases as the coolant temperature increases, however the actual resistance values of the 2 sensor circuits are different. The electrical connector of the 4-wire terminal sensor (1 and 2) is keyed to prevent improper connection of the sensor's electrical circuit.

WARNING When trouble shooting electrical components, always consult a wiring diagram for the particular year, make and model to ensure proper test equipment connection and diagnosis. Failure to use suitable test equipment and testing methods could permanently damage the electrical component(s).

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Fig. Beginning with model year 1994, the Engine Coolant Temperature Sensors combined the sensors for the ECM and the gauge into one sensor-1997 2.8L V6 sensor shown


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Fig. The electrical connector for the combined temperature sensors is keyed to avoid improperly connecting the sensor's wiring-1997 2.8L V6 connector shown

I hope help you with this, good luck (remember rated this help).

Oct 13, 2009 | 1999 Volkswagen Passat

1 Answer

Hi, how do i replace a coolant sensor on a petrol passat? thanks


remove the coolant bottle lid(when cold)the sensor is located at the back of the cylinder head on the drivers side(church window shape 4 wires)remove the plug pull out the horse shoe type clip and replace sensor(common failure)and the o ring refit in reverse order top up with a,freeze and away you go takes about 30mins

Dec 29, 2008 | 1995 Volkswagen Passat

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