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Changing Coolant in Seat Alhambra 2001 1.9 tdi

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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6ya6ya
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Posted on Jan 02, 2017

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  • 84 Answers

SOURCE: how to replace a coolant temp sensor on a 2001 vw jetta 2.0

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

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SOURCE: how to replace a coolant temp sensor on a 2001 vw jetta 2.0

YES & IT REALLY IS THAT EASY

Posted on Feb 18, 2009

landsend
  • 1066 Answers

SOURCE: 2005 Corolla LE when to flush coolant and change hoses, thermosta

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

  • 73 Answers

SOURCE: Overheat & Coolant Leak

OK YOU SAID THE CAR LICKS ANTIFREEZE WHERE THE TRANY IS IF IT IS COULDBE A BAD METAL SEAL

Posted on Jul 31, 2009

j_del
  • 1586 Answers

SOURCE: 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.

Posted on Dec 01, 2009

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Alhambra 1.9 tdi suddenly started blowing smoke and seems to be running on three cylinders


dear . you should check turbo charger . make sure the engine oil is on level .

Sep 19, 2012 | 2005 Seat Alhambra 1.9

1 Answer

Coolant sensor replacement


The exact locations and picture of Engine Coolant Temp (ECT) sensors on 2001 VW Jetta TDI:

1. ECT sensor 1 placed on cylinder head:

tdisline_485.jpg




2. ECT sensor 2 placed on the left bottom side of the radiator:

tdisline_486.jpg

Apr 28, 2011 | 2001 Volkswagen Jetta TDI

1 Answer

The diagram in my haynes manual does not show some parts that are in my 2001 jetta tdi 1.9 turbo. i ran a diognostic and it says glow plug curcuit a malfunction, i changed the plugs and tested the coolant...


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_301.jpg
The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.

Feb 23, 2011 | Volkswagen Jetta Cars & Trucks

1 Answer

Where are the three glow plugs that are used for the heater/cooling located on an 02 vw jetta 1.9L tdi?


In addition to the 4 primary glow plugs, the cooling system also has 3 Coolant Glow Plugs to help provide extra heat to the cooling system in order to warm-up the vehicle's interior more quickly, and enhance overall engine warm-up time. (Example - Some Mercedes diesel engines use electrical heaters in the cabin because their engine is so thermally efficient.)
Likewise, this auxiliary source of heat from the 3 Coolant Glow Plugs is necessary because of the VW 1.9 TDI engines outstanding efficiency, which wastes very little heat.


The 3 Auxiliary Coolant Glow Plugs are located at the end of the aluminum cylinder head (in a protruding flange) directly below the vacuum (brake booster) pump, which also connects to a coolant hose.

tdisline_102.jpg
The 3 Auxiliary Coolant Glow Plugs use two (underhood) relays which are monitored and controlled by the ECU. During a cold start, the vehicle's interior temperature selector switch helps the ECU choose one of three modes depending on the amount of heat required to warm-up the coolant.

For example, Coolant Glow Plug #1 can be selected to operate all by itself, or #2 and #3 can operate together as a two-some, or lastly, all three glow plugs can form a triple source of heat for maximum enhancement of engine warm-up time.

After the engine is completely warmed up and the thermostat is open, the Coolant Glow Plugs normally shut-off and remain off unless the (thermally efficent) engine cools down sufficiently to have the computer signal them to come back on to keep the engine and cabin air warm. Extensive idling times at stop lights or in the driveway are scenarios where these glow plugs are most likely to recycle on and off.

In conclusion, the period of Preglow and Afterglow is determined by the engine's coolant temperature (during a cold or hot start), which helps the ECU select a predetermined time-cycle for the combustion chamber and / or Auxiliary Coolant Glow Plugs to follow.

Finally, one myth that needs to be immediately debunked, is the belief that the TDI's advanced Glow Plug System is linked to the opening of the driver's side door, which is false! It is also noteworthy to mention that some earlier VW diesel glow plug systems were operated in this manner, but not so with the advanced VW Jetta 1.9 TDI engine.

Dec 16, 2010 | 2002 Volkswagen Jetta TDI

1 Answer

Need to change the engine coolant temp sensor, Where is it and what are the steps to changing it.


Heed of engine temperature!!! (Wait for engine cooling).
The engine coolant temperature (ECT) sensor is placed on back of cylinder head, towards clutch side. Disconnect the electrical cable plug and remove the fastening circlip. Remove the ECT sensor by pulling out from cylinder head. Extract also old "O-ring" sealing rubber. Install new ECT sensor with new "O-ring" sealing rubber.

Please rate my response. Thanks!

May 29, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

Over heating


depends where the coolant is leaking from if its coming out the overflow it could b a thermostat? u could have blown hoses, or clogged radiator or junk radiator? fill it up with enough water or coolant while its cold start it up n stand n watch where its leaking from?

May 25, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

Seat alhambra loss of power from third gear


could be turbo ,but the problem is its a common rail fuel injection system and this throws up another problem and that is its VW which from 2005 uses encrypted software so it is difficult to find the fault .change the fuel filter and see what happens if problem persists then its either a bosch diesel specialist or the dealer .sorry for no qiuck fix

Mar 28, 2010 | 1997 Ford Probe

2 Answers

My Polo tdi is emitting a continuos cloud of white smoke, it is almost like a white cload and fairly odourless, and the cars performance does not seem to be affected. To date we have spent thousand's...


check the pcv valve if bad it will allow engine to **** oil into the air intake and cause smoke,another things is to test the head gasket could be burning a little coolant

Feb 02, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

Coolant problems 2000 vw jetta


plastic impeller on water pump has come adrift

Dec 18, 2008 | 2003 Volkswagen Jetta TDI

1 Answer

How to replace a coolant temp sensor on a 2001 vw jetta 2.0


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?

Nov 28, 2008 | 1999 Volkswagen New Jetta

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