How many see their coolant temp rise above the mark when stationary, traffic jams or stop/go ?
#1
How many see their coolant temp rise above the mark when stationary, traffic jams or stop/go ?
I noticed mine rises about half a notch above the mark after doing some repairs (timing belt, thermostat, pump) and not sure if that's normal for these cars. But it's fine on the highway.
Maybe time to try doing a reverse coolant flush ?
Maybe time to try doing a reverse coolant flush ?
#3
Well, I have some lingering doubts about my cooling system..
My car has gotten up to about 20 angular degrees right of vertical on the temp gauge while stuck in traffic. After that I changed the electric radiator fan switch in the radiator. I haven't seen temps that high since, but I haven't been stuck in traffic in the summer since either. So no conclusion there.
I would be interested in some way of vigorously flushing the cooling system, since from looking at various parts that I've replaced, I have a coating of greenish goo in there.
I suggest taking a look at your electric fan and the associated sensor and relays though.
I would be interested in some way of vigorously flushing the cooling system, since from looking at various parts that I've replaced, I have a coating of greenish goo in there.
I suggest taking a look at your electric fan and the associated sensor and relays though.
#4
AudiWorld Super User
Join Date: Nov 2002
Location: New York, NY
Posts: 10,916
Likes: 0
Received 0 Likes
on
0 Posts
The worst I've ever seen is having it go slightly to the right of TDC on the gauge
that was in an 80 degree weather traffic jam for about an hour just east of the george washington bridge The car is sure as hell feels like it loses a bunch of HP due to the heatsoak but it bounces back as soon as it gets moving at highway speeds for a couple minutes.
#5
Changing to a lower temp switch for the fan helps, but the temps seem higher than they are
the thick line is only 90C, the next line being around 100C, and the one with the dots on either side being approx 110C. The highest the gauge should ever reach is between the two dots. The problem is that at a standstill, at idle, there is little air flow. The mechanical fan, even when fully engaged isn't spinning very fast at idle. The electric fan (which is pretty small) doesn't come on until the gauge is about at the 100C mark.
I agree that i don't like it running that hot, but it really isn't over heating, it's just how the gauge looks. I don't like it running that hot in traffic because then my oil starts to warm up.
Most gauges on cars these days stay on a notch in the middle, that reads everything between 90-100C, so you don't know exactly how hot the car is running until is starts to overheat. Ours actually move with the temp.
I agree that i don't like it running that hot, but it really isn't over heating, it's just how the gauge looks. I don't like it running that hot in traffic because then my oil starts to warm up.
Most gauges on cars these days stay on a notch in the middle, that reads everything between 90-100C, so you don't know exactly how hot the car is running until is starts to overheat. Ours actually move with the temp.
Trending Topics
#8
Re: How many see their coolant temp rise above the mark when stationary, traffic jams or stop/go ?
Check low speed and high speed fans ... replace the thermal switch on the radiator ... it is cheap insurance.
I had higher values ... ended up being the low speed fan inoperative ... do to the thermal switch.
Best regards,
Feico van der Laan
I had higher values ... ended up being the low speed fan inoperative ... do to the thermal switch.
Best regards,
Feico van der Laan
Thread
Thread Starter
Forum
Replies
Last Post
kenny (dremel)
A4 (B5 Platform) Discussion
21
01-21-2004 05:03 PM