20123.0t coolant temperature sensor location. Originally Posted by Vinng86. It's on the top side of the engine but underneath the supercharger, behind the pulleys and belts. You will need to remove the supercharger to access it. #12 in this diagram. Annotation 2019-12-19 004941.jpg. Ihave the awful 3.0 tdi lump found in Q7 / TOUAREG / CAYENNE 2012 model. I have just been working on it today as im losing coolant. I saw pink residue at the bottom lip of the water pump, so today I replaced the water pump + V belt. Unfortunately the car is still leaking. Upon looking at the P2181could be the sensor, but usually not. It is under the intake manifold on the water pump assembly. The water pump is a black plastic unit that is driven from the rear of the engine by a timing belt. It is easy to replace if you remove the intake manifold. You will need one triple square bit to remove one brace. Thecode refers to the transmission cooling circuit but it does not state the temperature of the ATF. It is antifreeze control solenoid for the transmission cooling circuit. Part number 4H0121671D. Audi released a technical bulletin for the fault of this component, but usually it comes up with the code 2753 or 2755. Placea clean drain pan under the radiator, open the radiator valve and drain about two to three quarts of coolant (or just enough to drop the level below the sensor). Then close the drain valve. This will minimize coolant waste when you remove the CT sensor. 3. Locate the CT sensor. COMMONCOOLANT LEAK ON PORSCHE CAYENNE, AUDI Q7, VW TOUAREGIf you have coolant leak on Porsche Cayenne, VW Touareg, and Audi Q7 in this video we qSYd. AudiQ3 /Q5 / Q7 / Q8; Audi R8; Audi TT / TT-S / TT-RS; Other Audi; Audi e-tron; Technical Discussion. Electronics; Location: NL/FR. Posts: 272 Likes: 0 Received 12 Likes on 10 Posts Salut, Open circuit doesn't necessarily mean your part is broken. 079919523 temperature sensor coolant temperature sender. Removethose screws and pull the water pump out. Figure 1. Loosen the screws on the water pump pulley. Figure 2. Loosen the bolt on the belt tensioner to release the belt. Figure 3. Remove the seven bolts holding the water pump in place. Figure 4. Remove the water pump. Themain Engine Coolant Temperature Sensor is known as the primary ECT sensor or ECT sensor 1. This sensor is located on the coolant passage next to or in the thermostat housing of the cylinder block or cylinder head. In an internal combustion car’s engine, the cylinder head is placed on the top of the car’s cylinders above the cylinder 2007Audi Q7 V6-3.6L: Service type Coolant Temperature Switch (Sensor) Replacement: Estimate $173.35: Shop/Dealer Price $205.44 - $262.34: 2010 Audi Q7 V8-4.2L: Service type Coolant Temperature Switch (Sensor) Replacement: Estimate $191.35: Shop/Dealer Price $230.48 - $292.66: 2013 Audi Q7 V6-3.0L Turbo Diesel: Service type Coolant Thisarticle applies to the Audi A4 B7 (Pre-2008). The thermostat is designed to block the way between the radiator and the engine. As the Audi A4's engine reaches the optimal temperature, the thermostat opens up to let coolant run through the radiator. The coolant works to keep the engine cool and prevents it from overheating. Received0 Likes on 0 Posts. It's the little sensor that is above the power steering cooling hardline in the pic. About the size of a tube of chapstick. Look off on the driver's side of the car for it. The end is open with (IIRC) three prongs that hold it in place when it snaps through a round bracket. Sorry this is the best pic I could find in

2007 audi q7 coolant temp sensor location