Where is the CTS coolant temp sensor usually located?

Step 1: Locate the Sensor The CTS is normally towards the front of the engine, near the radiator or thermostat housing. Because it’s a small component and is often located lower down inside the engine bay, you may need to use a light or torch to find it.

Where is the thermal sensor located?

Engine Coolant Temperature sensor is primarily located in the coolant passage of the liquid cooled engine; typically near the thermostat valve. The engine temperature sensor connects either to the temperature gauge or to the temperature indicator in the dashboard.

How to replace a temperature sensor in a VW?

Slide your clip in gently, plug the wire harness back in and start up the car. As long as nothing is leaking out then you’re good to go. If your coolant is low pour a little distilled water in the reservoir to top it off (do NOT mix it with store bought coolant). If you do have a check engine light on you have two options now.

Where is the temperature sensor on an Audi A4?

If you have an Audi A4 or passat it is located between the firewall and valve cover in front of the battery enclosure. You can choose to remove your engine cover if you’d like but you should have enough room with out removing it. I can’t say for sure because I have no idea what happened to my engine cover.

What to do if your temperature sensor is low?

As long as nothing is leaking out then you’re good to go. If your coolant is low pour a little distilled water in the reservoir to top it off (do NOT mix it with store bought coolant). If you do have a check engine light on you have two options now.

What is the correct part number for a VW Passat?

The revised part number is 059-919-501A and will have a green top as opposed to the original black or blue top that was in your car. No matter if you drive the A4, Jetta, Passat, Beetle or GTI, this should be the correct replacement part, but always check with your local V-dub dealership.