Good Evening Evros,
Although probably not needed by now some FSI coolant warmup figures. I fear it will be of little use anyway, read on but thought i would post it anyway.
Background.
Ambient temperature 12β by dashboard gauge.
Climate ON and set to 23β, working under AUTO.
Slight breeze that maybe added a minor cooling factor on the engine.
Engine cold at start and car largely stationary but it did include a brief gentle run of a few hundred metres at the start. (My neighbours windows are only about 4 metres from my parking area and she also chose today to hang out a great pile of washing. Thought best not to annoy by not having a running engine for half an hour and moved to the car park at the local rec, had the car park to myself.)
To begin some very subjective measurements by eye from the dashboard temperature gauge.
Time since engine start
(mins.) | Temperature
(β) |
| |
14.5 | Needle moves off 60β |
17.5 | 70 |
21.9 | 80 |
27.9 | 90 |
As you can see it took almost half an hour to reach its normal (intransigent) 90β and it s becoming clear I made a big mistake in turning on the climate but I did not want to get cold!
What VCDS is showing at this point.
View attachment 104892
I logged the groups and spent a long time this evening grappling with Excel and a 2000 line worksheet, knowing little about how to use Excel. I eventually got Excel to produce some summary results. The real dataβ¦
Time since engine start
(mins.) | Coolant temperature at engine outlet
(G62) | Coolant temperature at radiator outlet
(G83) |
Mins. | β | β |
| | |
0.0 | 9 | 12 |
1.0 | 16 | 12 |
2.0 | 27 | 12 |
3.0 | 36 | 12 |
4.0 | 41 | 12 |
5.0 | 45 | 12 |
6.0 | 48 | 12 |
7.0 | 51 | 12 |
8.0 | 53 | 12 |
9.0 | 54 | 12 |
10.0 | 56 | 12 |
11.0 | 57 | 13 |
12.0 | 58 | 13 |
13.0 | 60 | 13 |
14.0 | 61 | 13 |
15.0 | 63 | 13 |
16.0 | 65 | 14 |
17.0 | 66 | 14 |
18.0 | 68 | 14 |
19.0 | 69 | 14 |
20.0 | 71 | 14 |
21.0 | 72 | 14 |
22.0 | 73 | 15 |
23.0 | 74 | 15 |
24.0 | 75 | 15 |
25.0 | 77 | 15 |
26.0 | 78 | 15 |
27.0 | 78 | 15 |
28.0 | 80 | 16 |
29.0 | 81 | 16 |
30.0 | 82 | 16 |
31.0 | 84 | 16 |
32.0 | 84 | 16 |
Interesting to note the pronounced bend in the graph at about 6 minutes. My guess is that is when the cabin climate opens its flaps and begins to seriously use the coolant heat, severely slowing the coolant warmup.
It was clear it was going to take a long time to reach 110β so I gave up and called it a day. I am minded to do this again and leave the cabin climate off, but it will not be before Thursday.
Andy