Question about Cars & Trucks
What is the process to change the coolant on a 2001 Seat Alhambra 1.9 TDI...The car is over-heating and I have had the thermostat replaced but this hasn't resolved the issue
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Posted on Jan 02, 2017
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
Change the thermostat and the fluid, that is more than enough. The hoses should be replaced if they are soft or leaking. I'm presuming your car has 100k+ miles. so also change the belts.
Posted on Mar 11, 2009
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.
Posted on Dec 01, 2009
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