Question about 1988 Audi 90

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Where is the thermostat located in 1993 audi 90, can i have picture

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It is located on the front of the motor under the timing cover, behind the timing belt. Usually this is replaced along with the timing belt job and the water pump. If you follow the radiator hose up from the radiator on the right side it's up where it goes into/behind the cover.

Posted on Mar 10, 2009

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How can i test the Thermostat to my 1993 audi 90cs at home to see if it's good?


I remember doing this years ago. Remove thermostat from the car and drop it into a pot and then pour boiling water over it. If it's good you will see it change shape as the bellows function. If this doesn't happen replace it. Just bear in mind that the Audi can't be driven without a thermostat, so if you have no other transport see if you can buy a replacement thermostat on a sale or return basis!

Jun 16, 2015 | 1993 Audi 90

1 Answer

How can i tell if the thermostat is bad in my 1993 audi 90cs?


faulty thermostats show as two things
stuck close --overheating with in 10 minutes of driving
stuck open--- not reaching operating temperature with in 20 minutes of driving
the test is to remove it have test it as per instructions for testing thermostats

Jun 16, 2015 | 1993 Audi 90

1 Answer

Please can anyone tell me where the Coolant Temp Sensor is located


FOr 1993 Audi 90 2.8L SFI 6cyl the Coolant Temperature Sensor is located under hood, passenger side, rear engine area, mounted in cylinder head. Im sorry, but haven't some diagram.

Hope this helps (remember to rate this answer).

May 10, 2011 | 1993 Audi 90

1 Answer

1993 90: 1993 water pump location...


Water pump sits in the front of the engine top centerline. Look just below the coil pack. It uses the timing v-belt for operation so it takes a bit of mechanical know how to remove/replace (r&r) it, as the timing can be thrown off if the v-belt is not reinstalled correctly. Get past the timing belt, the water pump is r&r is just a few bolts away. I'm currently babying my water pump...the part is relatively inexpensive compared with an almost $500 labor charge (5hrs, dealer est.) to replace it. I'll be hitting up the dealer as my '93 Audi 90 CS Quattro is a daily driver. G/L

May 16, 2010 | 1993 Audi 90

1 Answer

1993 Audi 90 Quattro Where is the headlights on/door chime located? And how do I remove it?


located on there relay board (underneath steering wheel), it's the relay with the holes on the top (tiny speaker)

Feb 10, 2010 | 1993 Audi 90

2 Answers

Need a timing belt diagram for a 1993 audi 90 quattro please hlep


I am not sure if you have the 90 or the 90 Quattro.
Click on the below Links.
The first Link is all the Diagrams on the Timing Belt for the 90 Model.
The second link is all the Diagrams on the Timing Belt for the V8 Quattro.
Before clicking, let me know if this helped you.
For the 90 Model:
http://www.2carpros.com/car_repair_information/year/1993/make/audi/model/90/1993_audi_90_timing_belt_diagram_marks.htm

For the V8 Quattro:
http://www.2carpros.com/car_repair_information/year/1993/make/audi/model/v8_quattro/1993_audi_v8_quattro_timing_belt_diagram_marks.htm

Jan 31, 2010 | 1993 Audi 90

1 Answer

Where is the thermostat?


1993 Audi 90 2.8L SFI 6cyl - Thermostat: is located on the front of the motor under the timing cover, behind the timing belt. Usually this is replaced along with the timing belt job and the water pump.

If you follow the radiator hose up from the radiator on the right side it's up where it goes into/behind the cover.

I hope helps with this (remember arted this help) Good luck.

Dec 17, 2009 | 1993 Audi 90

2 Answers

My 1995 audi 90 wont stop overheating


It sounds like you have a head gascet fault, if the water hoses are highly presurised with back pressure when car is running and you are lousing water, creamy coloured oil then these are all symptoms.
some audi's have platic water pump fins that deteriorate too this also could be a fault,
A pressure test on the cooling system should conferm what exactily is wrong.

Sep 02, 2009 | 1993 Audi 90

1 Answer

Locate thermostat 1993 90cs v6


Follow the upper and lower radiator hoses to the engine block (upper first). At the end of one of these hoses, there will be a "bubble" housing attached to block -- thermostat is under that.

Charlie

Aug 23, 2009 | 1993 Audi 90

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

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