I got my clutch replaced not long ago, when I go my car back there were many things wrong with the car that the mechanic doesn't want to take credit for. I would hire a lawyer but I can't afford one, nor do I have any proof.

My temp gauge doesn't work at all. Everything else is fine. I know the disconnected my coolant tank, not sure what else he did.. but could tilting it cause air to seep in? How do I bleed the system on an 01 1.8t? I searched around and it may be the sensor, how do I check/replace it? Is there anything I can do/check before spending money? Thanks!

 

i can almost gaurentee the ECt sensor is bad, its the one that sends temp reading to the gauge, its located on teh back of the engine, it costs about $25 from ecs tuning, probably cheaper at the local auto store, takes about 5 minutes to change ont eh 1.8t.

 

So I guess I can stop praying to the money Gods now?

Is there a way I can check if its bad.. (crazy question.. I know).. I'll buy one soon and replace it. Is it pretty easy once I see what it looks like and check the back of my engine, should I know exactly what to do.. directions?

Thank you SAudi!

 

any suggestions?

 

http://www.a4mods.com/index.php?page...ECTsensor.html

this should work for you, its for a B6 but the engine is the same with most components int eh same location, i have a 2.8 and it was buried under a buch of stuff. there really isnt a way to test it (as far as i know) but this is usally the cheapest thing to replace so it couldnt hurt, for me it was defiently the problem since the second i replaced it the temp guage went from cold to halfway warm.(i replaced it right after i drove it so it was still warm). hope this helps

 

diagnostic tools required






Checking heat output[/align]Checking heat output[/align]
Special tools, testers and other items required

â—†Vehicle diagnostic, testing and information system VAS 5051 (or fault reader V.A.G 1551/vehicle system tester V.A.G 1552 with wire V.A.G 1551/3) and adapter VAS 6017 (if several vehicle systems are to be tested)
â—†Minitester V.A.G 1362 (for temperature measurement) [/ul]
Test requirements:

â—�Engine warm
â—�All air ducts, covers and seals OK and properly fitted
â—�Air throughput through dust and pollen filter not impaired by contamination
â—�Vehicle not exposed to sunlight
â—�Fault memory interrogated => Page 01-104 [/ul]

â—�Encoding checked and corrected if necessary => Page 01-114
â—�Basic setting performed => Page 01-99
â—�All dash panel vents open
â—�Bonnet closed [/ul]
Note:
If one of these test requirements is not met, interrogate fault memory => Page 01-85.
Checking maximum specified temperature setting

‒Close doors, windows and sun roof.
‒Open all dash panel vents.
‒Start engine.
‒Start heating system self-diagnosis => Page 01-9. [/ul]










‒→ Set temperature preselection "1/3" (approx. 4 bars -A- for driver's and front passenger's side) on -E87 (heating).
‒Set air exit direction on -E87 (heating) to "Dash panel and footwell vents".
‒In "Reading measured value block" function => Page 01-140.
‒Set engine speed to 2000 rpm.
‒Set fresh-air blower speed by way of operating and display unit for air conditioner/Climatronic -E87 (heating) to 2/3 of maximum speed. [/ul]










‒→ Compare measured value (for sender -G89) displayed in zone "2" of display group "010" with measured values in display group "009" zones "1" to "4" (senders -G150, -G151, -G261 and -G262) to values for temperature range shown on graph. [/ul]
Note:
Tolerance band approx. ± 5 °C


A -Vent temperature [/ul]










→ B -Specified vent temperature at 2/3 of maximum temperature setting
C -Specified vent temperature at 1/3 of maximum temperature setting
D -Ambient temperature [/ul]
Example: At 1/3 of max. specified vent temperature (measured values of senders -G150, -G151, -G261, -G262)









Ambient temperature in °C (measured value of -G89)

Specified vent temperature in °C


approx. 0

approx. 26


approx. 10

approx. 22


approx. 45

approx. 56










‒→ Set temperature preselection "2/3" (approx. 4 bars -A- for driver's and front passenger's side) on -E87 (heating).
‒Set air exit direction on -E87 (heating) to "Dash panel and footwell vents".
‒In "Reading measured value block" function => Page 01-140.
‒Set engine speed to 2000 rpm.
‒Set fresh-air blower speed by way of operating and display unit for air conditioner/Climatronic -E87 (heating) to 2/3 of maximum speed. [/ul]










‒→ Compare measured value (for sender -G89) displayed in zone "2" of display group "010" with measured values in display group "009" zones "1" to "4" (senders -G150, -G151, -G261 and -G262) to values for temperature range shown on graph. [/ul]
Note:
Tolerance band approx. ± 5 °C


A -Vent temperature [/ul]










→ B -Specified vent temperature at 2/3 of maximum temperature setting
C -Specified vent temperature at 1/3 of maximum temperature setting
D -Ambient temperature [/ul]
Example: At 2/3 of max. specified vent temperature (measured values of senders -G150, -G151, -G261, -G262)









Ambient temperature in °C (measured value of -G89)

Specified vent temperature in °C


approx. 0

approx. 42


approx. 10

approx. 38


approx. 45

approx. 72
Notes:

â—†If required values are not attained, compare measured values indicated in display group "009" zones "1, 2, 3" and "4":

‒If measured values in display zones "1" and "3" or "2" and "4" are OK, check temperature flap control motor for side on which measured value is not OK (-V158 or -V159). To do so, perform electrical check on temperature flap control motors (-V158 or -V159)
=> Page 01-247 "Electrical Check, Test Step 4".
‒Check senders -G150, -G151, -G261 and -G262 for proper installation and electrical connections for contact resistance => Page 01-247 "Electrical Check, Test Step 4". Replace any defective components.
‒Check operation of levers between control motors and flaps
=> Page 80-57. [/ul]
â—†Temperature of air flow from "Centre" dash panel vents can also be measured using Minitester V.A.G 1362, for example.
â—†Respective temperatures for left/right side can be synchronised by simultaneously pressing buttons "+" and "-" for temperature preselection on operating and display unit for air conditioner/Climatronic -E87 (heating). [/ul]

probably beyond your tech

[IMG]local://upfiles/12092/5E900838E7D04A2A8E3B59D66635E84C.jpg[/IMG]

[IMG]local://upfiles/12092/4EBDB851E0504C64A3651F61D63465C7.jpg[/IMG]

[IMG]local://upfiles/12092/3048199E0C464B35801CEF6A6A1B6F29.jpg[/IMG]

 

might as well be written in Chinese.

then again i'm not sober. i'll give it another look tomorrow.

 

its easy to ect sensor out since its a 1.8.. and cheap.. and the cause of many problems including my hard starting problem!

 

yep i had the exact same problem; hard starting and bad temp guage. its an easy and cheap fix from ecstuning.

 

thanks a ton for all of your help. i always say this, but no one has taken me up on this offer yet. if you're ever in my area, let me know.. beer on me.