Question about 2004 Volkswagen Jetta
Posted by Anonymous on
SOURCE: need exact location and picture
The exact locations and picture of Engine Coolant Temp (ECT) sensors on 2004 VW Jetta TDI:
1. ECT sensor 1 placed on cylinder head:
2. ECT sensor 2 placed on the left bottom side of the radiator:
Posted on Sep 22, 2010
Yes it is that easy. It should be a 4 pin connector located on the transmission side of the engine head in a plastic flange. Best is to wait for the engine to be cold. Unscew the radiator cap to relieve pressure but screw it right back on. On the 2.0L engines when you unclip the coolant sensor little or not coolant loss will happen if you do this. Just unplug it, pull out the clip, pull out the sensor, and the seal which sometimes stays stuck. Install the new sensor with a new seal lubricated with some coolant, make sure it's well seated and reinstall the clip. The sensor is well seated if the clip fits right over the top, just make sure both sides clipped into position. Replug it fill the coolant with VW original coolant mixed 50-50 with water if needed and done. If you have a fault you might need a scanner to erase the check engine or fault in the cluster.
What's the reason for changing it? Eratic temperature readings?
Posted on Nov 29, 2008
With the key in the ignition (but not turned), press and hold the Odometer Reset Button on the right hand side of the panel. While still holding that button, turn the key (although not far enough to start the engine) and then press and hold the Minute button on the left side of the instrument pane(if pressing doesnt work try turning the knob clockwise until service light has gone off and skip the pressing)l. Release both buttons at the same time.
Posted on May 30, 2009
one is located over the battery, the other is located in the side of the dash.
If you pop your hood the battery will be on your right sid in the front of the engine bay. There is a small rectangular piece on top of the battery with a lot of heavy guage red wires going to it. That is the engine bay fuse box.
if you open your driver side car door it's under neath a panel located inbetween the door and the dash board.
Posted on Jun 03, 2009
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