bertwibble52
02-06-2008, 09:33 AM
Hi all,
I am new to the forum and did have a look through but could not find exactly the same symptoms; so I thought it would be best to ask before I start hacking around under the bonnet....
Normally the car drives just fine, with no obvious signs of overheating. However, the temperature sensor more often than not sticks at 50deg, whether in traffic or on the motorway. On occasion it will suddenly jump up and sit nicely at 90deg (where I guess it should be). This has never really given a problem so I have been happy to ignore it.
This weekend we went to Longleat, and driving around the safari park means lots of slow driving. We stopped in one enclosure (thankfully not the lions) when we saw steam coming out of the bonnet. On closer investigation, the steam appeared to be coming out of the expansion tank. The temperature sensor for the entire drive around the park sat at 50deg or just above.
When it had cooled off a bit, I topped up the lost fluid (not very much) and all was fine again.
From reading some of the stuff on the forum, I am guessing I have a problem with the main engine temperature sensor? I also don't think the cooling fan was kicking it, so could I have two issues or is the fan controlled from the main temperature sensor?
Thanks in advance,
Mark
2003 A4 Avant; 2.0 petrol; 110000 miles.
I am new to the forum and did have a look through but could not find exactly the same symptoms; so I thought it would be best to ask before I start hacking around under the bonnet....
Normally the car drives just fine, with no obvious signs of overheating. However, the temperature sensor more often than not sticks at 50deg, whether in traffic or on the motorway. On occasion it will suddenly jump up and sit nicely at 90deg (where I guess it should be). This has never really given a problem so I have been happy to ignore it.
This weekend we went to Longleat, and driving around the safari park means lots of slow driving. We stopped in one enclosure (thankfully not the lions) when we saw steam coming out of the bonnet. On closer investigation, the steam appeared to be coming out of the expansion tank. The temperature sensor for the entire drive around the park sat at 50deg or just above.
When it had cooled off a bit, I topped up the lost fluid (not very much) and all was fine again.
From reading some of the stuff on the forum, I am guessing I have a problem with the main engine temperature sensor? I also don't think the cooling fan was kicking it, so could I have two issues or is the fan controlled from the main temperature sensor?
Thanks in advance,
Mark
2003 A4 Avant; 2.0 petrol; 110000 miles.