Engine Temperature
Thread Starter
AudiWorld Member
Joined: Apr 2006
Posts: 113
Likes: 0
Engine Temperature
OK, this is driving me insane, for some reason my engine temperature goes from the middle position to less than 1/4 position, while I;m driving the tempreature will go up to the middle and then drop to the other position mentioned above?? Maybe the temperature sensor is on it's way out??
Member
Joined: Apr 2005
Posts: 2,334
Likes: 0
look at the turbo, check for pink crust
i had the yoke back of the head leak, it dripped pink crust (G12) on the bellhousing area. sounds exactly like what happens when there is air in the cooling system.
look all around for the pink crust..
look all around for the pink crust..
Thread Starter
AudiWorld Member
Joined: Apr 2006
Posts: 113
Likes: 0
air?? is that something major?
I have it scheduled for tuesday, they are going to replace the engine coolant, cause somewhere down the road it got mixed up with the geen stuff.... I guess I'll have them check this issue too
Member
Joined: Apr 2005
Posts: 2,334
Likes: 0
ouch green stuff not good to mix. but look for pink crust to notify them
there's always a leak where pink crust is concerned. also take the 1.8T engine cover off and look around the drivers side for leaks too and in the front where the water pump is (top dead center front dripping down).
the dealer is amazing at skipping over the obvious
the dealer is amazing at skipping over the obvious
Trending Topics
Thread Starter
AudiWorld Member
Joined: Apr 2006
Posts: 113
Likes: 0
no pink crust, but.....
I didn't find any pink crust, but I did notice that the fluid level had gone down, I just topped it off yesterday, there must be leak somewhere!!!! If there is a leak, could that cause the engine temperature sensor to malfunction?
AudiWorld Stories
Bringing Audi to Life for Audi Fans
The Highs & Lows of Every Audi C-Class Generation
Joe Kucinski
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer
Brett Foote
10 Audi Features & Options We Miss the Most!
Joe Kucinski
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Verdad Gallardo
Coachbuilder Recreates the 1995 Audi TTS Concept
Verdad Gallardo
Every Audi V10 Car Ranked!
Joe Kucinski
9 Audi Designs That Aged Like Fine Wine
Verdad Gallardo
2026 Audi Q5 Buyer's Guide (Every Model Explained)
Brett Foote
Ranking Every Current Audi 'S' Model From Worst to First!
Joe Kucinski
Member
Joined: Apr 2005
Posts: 2,334
Likes: 0
yes; i just told you the neck where the green cts is a HIGHLY likely place back there
for every drop of coolant that leaves, air replaces it. Air goes up, green cts happens to be at the top of the head ..
it makes really wierd stuff happen since the ecu is using mapped coolant temps.
thats why alot of peeps need to replace the green cts and the water neck on the back of the head. It was like 1.0hr labor and like $30 for new parts (neck and green cts). solved my issue.
air in the coolant system is very very bad as it causes hot spots and aluminum will warp in seconds when overheated. learned that a while ago killed my 87 gti head in like 30 seconds due to a hose i knew was leaking. It's definitely not something you just want to put off.
also the O-ring on the water neck goes bad alot on our car too. mine was fine, but there was a hairline crack.
if you turn off your car listen for anything that sounds like dripping/sizzling.
it makes really wierd stuff happen since the ecu is using mapped coolant temps.
thats why alot of peeps need to replace the green cts and the water neck on the back of the head. It was like 1.0hr labor and like $30 for new parts (neck and green cts). solved my issue.
air in the coolant system is very very bad as it causes hot spots and aluminum will warp in seconds when overheated. learned that a while ago killed my 87 gti head in like 30 seconds due to a hose i knew was leaking. It's definitely not something you just want to put off.
also the O-ring on the water neck goes bad alot on our car too. mine was fine, but there was a hairline crack.
if you turn off your car listen for anything that sounds like dripping/sizzling.