Question about 2003 Audi A4 Cabriolet

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Where is the thermostat on a audi a4 2003 1.8ts

Please could you tell me here in the engine is the above?

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THE THERMOSTAT ON DIESEL ENGINES IS FITTED BENEATH AN INLET ELBOW/COVER ON THE LEFT-HAND SIDE OF THE CYLINDER BLOCK.....AND ON A PETROL IT IS FITTED TO A DISTRIBUTION HOUSING ON THE LEFT-HAND SIDE OF THE CYLINDER BLOCK.......HOPE I WAS OF SOME HELP TO YOU..............

Posted on Feb 27, 2009

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Audi fans stay on all the time


What do you mean all the time? when engine is running?
if you are on a hot climate the fans help dissipate excessive heat build up when the vehicle is stationary. what is the water temperature tell you when you are not moving?
could be that the thermostat is not 100% functional to fully open after engine heated properly and the computer attempts to remove excessive heat to prevent overheating of the engine or the engine temperature sensor is giving false readings that tell the computer that the fans need to be on to do the above.
i recommend that you do a scan of the engine, first to check for errors history, then if none are found while driving and afterwards stationary to see what the temperature reads are.

after engine shutdown usually they can still remain on up to a minute to eliminate excess heat from the radiator.

let me know if it helped.

cheers,
Florian

Jul 01, 2014 | 2004 Audi A4

1 Answer

Audi a4 1.9 tdi thermostat diagramm


First time you might check the thermostat operating.

Heed of antifreeze coolant temperature!!!


The thermostat location for a 2000 Audi A4 1.9 TDI is on back of the alternator at the bottom side of the bracket.

IMPORTANT NOTE: It is NOT necessary to replace the alternator if you want to change the thermostat !!!

Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):
tdisline_211.jpg


Important note: Always replace the thermostat round seal, position 7 in the above picture.

Jul 06, 2011 | 2000 Audi A4

1 Answer

Heater is cold but abit warm when drivin audi a4 2005


Check & replace the engine thermostat if necessary.

Heed of antifreeze coolant temperature!!!
First time you might check the thermostat operating.
The thermostat location for 2005 Audi A4 1.9 TDI, is on back of the alternator at the bottom side of the bracket.
IMPORTANT: It is NOT necessary to replace the alternator if you want to change the thermostat !!!
Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):

tdisline_238.jpg


Important note: Always replace the round thermostat seal, position 7 in the above picture.

Please do rate my response. Thanks!

Feb 09, 2011 | 2002 Audi A6

1 Answer

Where is the thermostat on my 2002 audi a 4 located


Hello,

The thermostat of a 2002 audi a4 is located between the engine and the radiator. The thermostat is small and crucial. It is meant for the vehicles cooling system. It moderates the flow of coolant into the engine by releasing it when the engine need it the most. The thermostat is designed to open its valve once the temperature of the engine reaches about 200 degrees F. Its purpose is to keep the engine running at a consistent temperature, allowing your Audi A4 to operate at peak performance.

If You are planning on replacing the thermostat, here are the steps to follow to replace them, try to get these instruments (Car ramps, 4-by-4 inch wood block, Metric socket wrench set, Socket extension, Pliers, Drain pan, Empty plastic container, Black marker, Towel, Emery cloth, Gasket seal) then follow the steps below:
  1. Raise the front end of your Audi A4 by driving up on a set of car ramps and placing your vehicle in park.
  2. Place a 4-by-4 inch wood block behind one of the rear tires to keep the vehicle from rolling backward.
  3. Use a socket wrench to remove the pan that covers the bottom of the engine.
  4. Locate the red plastic cap that was behind the pan that you just removed. This red cap is your radiator drain plug. Remove the radiator cap from the top of the radiator and then place a drain pan under the red drain plug and turn it with a pair of pliers to allow the coolant to drain completely from the radiator. Once the coolant has completely drained, turn the drain plug to close it off. Be careful when using the pliers on the drain plug that you do not snap the plug off.
  5. Slide under the vehicle and locate the thermostat housing that is sitting just above the oil pan drain plug. Pour the drained coolant from the drain pan into an empty plastic container and label the container so that you do not reuse the expelled coolant. Place the empty drain pan under the thermostat housing before you attempt to remove the housing to allow the coolant from the engine to drain into it.
  6. Remove the 10 mm bolts that hold the thermostat housing on the engine block with a metric socket wrench. Do not lay directly underneath the thermostat housing as the coolant from the engine will begin to drain as soon as you loosen the bolts on the housing. Keep a towel or cloth with you to clean off any spilled coolant .
  7. Remove the thermostat housing from the engine and lift the old thermostat out of the housing. Use a piece of emery cloth to clean the face of the thermostat housing and the engine block where the housing is mounted from any remaining gasket material or debris.
  8. Spread a layer of gasket seal around the face of the thermostat housing and place the new thermostat on the housing, with the thermostat spring facing out from the housing. Position the housing back on the engine block and secure it to the block with the bolts.
  9. Replace the pan the sits across the bottom of the engine of your Audi A4 and then refill the radiator with coolant and put the radiator cap back on the radiator. Remove the wood block from the back tire of your vehicle. Turn the engine on and drive the Audi A4 off of the car ramps. Allow the engine to run at idle for a few minutes to verify that the thermostat is working properly and then shut the engine off.
Hope this helped. Thank You for using FixYa!!!

Jan 27, 2011 | 2004 Audi A4

1 Answer

My 2004 A4 1.8 Audi's water temperature does not go above 150 degrees F. What can be the problem


Check the engine thermostat!

Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 140 degrees F you still warm up the engine until the lifter (pointer) reach 175 deg. F (second mark after 140 deg. F). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 195 deg. F.
3. The thermostat opening temperature is 188 deg. F.
4. If the hose is already warm the thermostat is out of order.

Replace the thermostat if necessary!



Please do rate my response. Thanks!

Jan 11, 2011 | 2004 Audi A4

1 Answer

I need to know where the thermostat is located for the Audi A8 V8 4.2 Quattro Automatic 2006


The thermostat is located in front of the engine, between V cylinder banks, for Audi A8 V8 4.2 Quattro Automatic. See pictures below:

tdisline_127.jpg


tdisline_128.jpg
Remove the thermostat housing (2 bolts) and the old thermostat. Note the orientation of the old thermostat (vent valve facing UP). Clean both thermostat housing and block surfaces and remove all traces of old gasket material. Install the new thermostat vent valve facing UP.

Please do rate my response. Thanks!

Dec 26, 2010 | 2000 Audi TT

1 Answer

2002 Audi 4.2. Where is the thermastat located


Thermostat is located in front of the engine between V cylinder banks, for Audi 4.2 V8.

34c731c.jpg

6879319.jpg
Remove the thermostat housing (2 bolts) and the old thermostat. Note the orientation of the old thermostat (vent valve facing UP). Clean both thermostat housing and block surfaces and remove all traces of old gasket material. Install the new thermostat vent valve facing UP.
Please rate my response. Thanks!

Aug 25, 2010 | 2000 Audi A6

1 Answer

Can't find thermostat location on 1988 Audi 90.


Hi Lol,
I'm not an Audi specialist however if you follow the top hose from the radiator to the engine block the thermostat housing on most engines is at the end, it may have 2 nuts or bolts securing it.
I hope you are now sorted if not please come back to me and I'll try to get my head under the bonnet/hood of a 90 to find what you seek.
Please remember to rate my efforts,
Paul 'W'
Onyer~EDson(:0) {#><U.K.

Jan 19, 2009 | 1988 Audi 90

2 Answers

Where is the thermostat on my 2.8 V6 engine 1999?


If it's the same as the 99 2.8 V6 in the A4, it's quite a ways inside the front of the engine. You have to remove a lot of the front of the engine and you'll find it partially hidden behind the timing belt tensioner. Foolish place to put such a part unfortunately, but at least on my A4 that's where it is.

Jul 02, 2008 | 1999 Audi A8

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