Temperature gauge going up and down...
#21
AudiWorld Super User
Sorry, no thermostat pictures. I did a brief images.info.com search and everything I found looked like an ordinary thermostat found in any car. I did notice that the same part was used in several different models. The TDI thermostat seemed to be attached to a composite housing that bolted to the engine and had a hose attachment.
#22
AudiWorld Member
Sorry, no thermostat pictures. I did a brief images.info.com search and everything I found looked like an ordinary thermostat found in any car. I did notice that the same part was used in several different models. The TDI thermostat seemed to be attached to a composite housing that bolted to the engine and had a hose attachment.
#23
AudiWorld Super User
#24
AudiWorld Super User
For those of you trying to evaluate the temperature and its warnings you could try enabling, via VAG-COM, the Lap Timer option. This will give a display of engine oil temperature and you can check it against your temperature gauge reading. Although they don't mimic each other, it is a good indication of the engine temp. My gauge is always in the middle with 4 bars but the engine oil temp fluctuates between 179 to as high as 205.
#25
AudiWorld Super User
For those of you trying to evaluate the temperature and its warnings you could try enabling, via VAG-COM, the Lap Timer option. This will give a display of engine oil temperature and you can check it against your temperature gauge reading. Although they don't mimic each other, it is a good indication of the engine temp. My gauge is always in the middle with 4 bars but the engine oil temp fluctuates between 179 to as high as 205.
#26
AudiWorld Member
For those of you trying to evaluate the temperature and its warnings you could try enabling, via VAG-COM, the Lap Timer option. This will give a display of engine oil temperature and you can check it against your temperature gauge reading. Although they don't mimic each other, it is a good indication of the engine temp. My gauge is always in the middle with 4 bars but the engine oil temp fluctuates between 179 to as high as 205.
#27
Audiworld Junior Member
Join Date: Oct 2011
Location: Southern California
Posts: 58
Likes: 0
Received 0 Likes
on
0 Posts
So, is the common failure isolated to the thermostat on the 3.0T's or the water pump as well. Some folks seems to have had to replace both. I'm considering a preowned C7A6, and want to make sure the thermostat gets replaced while still under warranty, so wondering if water pumps are failing at the same time..
My family and I had headed out to Palm Desert (from LA); car was fine during the drive ... but later in the evening I experienced the same issues reported elsewhere in this thread -- i.e., temp. gauge pegged in the red, warning to let the engine idle, etc. I pulled over and shut if off a few times, with it cooling sufficiently each time for me to limp back (in stages) to our resort. The next morning, I decided to chance the 6-mile drive over to the Audi dealer in Rancho Mirage, figuring I'd pull over and call for a tow if it looked too dicey. I ended up making it to the dealer just fine, and their eventual diagnosis was a "stuck" thermostat (it was "stuck closed," failing to open when necessary). They replaced it for me that same day, and the car is as good as new. (I should add that I purchased my 2012 in Sept. 2011, and it's been flawless the entire time until this incident. 23,000 miles.)
So, FWIW, the issue/problem does appear to be isolated to the thermostat.
By the way, a special thanks to Mark Wilson and Audi Rancho Mirage ("Desert European"?).... Mark and the team took care of me and my car at a moment's notice when I arrived there at 7:30 a.m. with no appointment, making sure I had my car back -- fixed and cleaned -- before the end of the day. Obviously things could have gone far worse considering I was away from home when this went down. So, thanks!!!!
#28
AudiWorld Member
Just to add my 2 cents: I experienced the exact same problem last week, and the thermostat was determined to be the lone culprit.
My family and I had headed out to Palm Desert (from LA); car was fine during the drive ... but later in the evening I experienced the same issues reported elsewhere in this thread -- i.e., temp. gauge pegged in the red, warning to let the engine idle, etc. I pulled over and shut if off a few times, with it cooling sufficiently each time for me to limp back (in stages) to our resort. The next morning, I decided to chance the 6-mile drive over to the Audi dealer in Rancho Mirage, figuring I'd pull over and call for a tow if it looked too dicey. I ended up making it to the dealer just fine, and their eventual diagnosis was a "stuck" thermostat (it was "stuck closed," failing to open when necessary). They replaced it for me that same day, and the car is as good as new. (I should add that I purchased my 2012 in Sept. 2011, and it's been flawless the entire time until this incident. 23,000 miles.)
So, FWIW, the issue/problem does appear to be isolated to the thermostat.
By the way, a special thanks to Mark Wilson and Audi Rancho Mirage ("Desert European"?).... Mark and the team took care of me and my car at a moment's notice when I arrived there at 7:30 a.m. with no appointment, making sure I had my car back -- fixed and cleaned -- before the end of the day. Obviously things could have gone far worse considering I was away from home when this went down. So, thanks!!!!
My family and I had headed out to Palm Desert (from LA); car was fine during the drive ... but later in the evening I experienced the same issues reported elsewhere in this thread -- i.e., temp. gauge pegged in the red, warning to let the engine idle, etc. I pulled over and shut if off a few times, with it cooling sufficiently each time for me to limp back (in stages) to our resort. The next morning, I decided to chance the 6-mile drive over to the Audi dealer in Rancho Mirage, figuring I'd pull over and call for a tow if it looked too dicey. I ended up making it to the dealer just fine, and their eventual diagnosis was a "stuck" thermostat (it was "stuck closed," failing to open when necessary). They replaced it for me that same day, and the car is as good as new. (I should add that I purchased my 2012 in Sept. 2011, and it's been flawless the entire time until this incident. 23,000 miles.)
So, FWIW, the issue/problem does appear to be isolated to the thermostat.
By the way, a special thanks to Mark Wilson and Audi Rancho Mirage ("Desert European"?).... Mark and the team took care of me and my car at a moment's notice when I arrived there at 7:30 a.m. with no appointment, making sure I had my car back -- fixed and cleaned -- before the end of the day. Obviously things could have gone far worse considering I was away from home when this went down. So, thanks!!!!
#29
AudiWorld Member
I just had this problem as well with low coolant + engine overheating, thermostat replaced.
Anyone who had this replaced, did you need it changed again or was it maybe a batch of defective thermostats? Also, anyone know how much this would cost outside warranty?
Anyone who had this replaced, did you need it changed again or was it maybe a batch of defective thermostats? Also, anyone know how much this would cost outside warranty?
#30
Audiworld Junior Member
Join Date: Oct 2011
Location: Southern California
Posts: 58
Likes: 0
Received 0 Likes
on
0 Posts
Cheers,
Kevin