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- Jan 7, 2017
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I wonder if any of you kind chaps could throw any light on this.
Okey doke. Background information first.
The car is a 2.0TFSI 190, just - just - three years old and with a measly 14,000 miles on the clock. It had a service yesterday. The coolant was tested and its level checked as part of this service. It has never needed any adding, and until some time in the last four or five days has been that nice pink G13 colour.
This morning I happened to have a look at something unrelated under the bonnet and noticed out of the corner of my eye that not only had the coolant in the header changed to the colour of weak tea (with no milk), but something had deposited itself on the inside of the tank. Although it's not as clear as it once was, the level is between the marks, and there are no leaks.
Here are some pics:
The first picture is a little bit yellower than it is in real life, and the second one rather more so. This is pretty obviously the result of the torchlight - a bright LED - shining through the coolant. The staining on the inside of the tank is much more marked below its equator, as it were.
The light patches in the bottom half are whiter than they appear on these two pictures, and are much closer in colour to the natural translucent white of the top of the tank.
Photo 3 shows the inside. You can see the staining on the internal components.
I'm sorry about the rather graphic nature of pictures 4 and 5, and I can only apologise to anyone in the middle of their lunch.
No 4 is the result of wiping my finger on the side of that little tab visible on No 3. It looks oily, but it isn't. If you look closely at this and No 5 (which is a bit of rolled up kitchen towel used as a dipstick) you can little particles of this sediment.
You can also see on the kitchen towel pic how much of the G13's normal pink colour has disappeared.
As I said, this stuff is not oily. There is nothing floating on top of the coolant in the tank. Stick your hooter in the neck of the header and it doesn't smell of oil.
There is absolutely no sign of water in the oil either.
The effect is very much like the staining you get on the inside of a mug when you make a brew with a teabag then get distracted and wander off for an hour without having put any milk in it.
Anyone seen anything similar?
Cheers
Pete
Okey doke. Background information first.
The car is a 2.0TFSI 190, just - just - three years old and with a measly 14,000 miles on the clock. It had a service yesterday. The coolant was tested and its level checked as part of this service. It has never needed any adding, and until some time in the last four or five days has been that nice pink G13 colour.
This morning I happened to have a look at something unrelated under the bonnet and noticed out of the corner of my eye that not only had the coolant in the header changed to the colour of weak tea (with no milk), but something had deposited itself on the inside of the tank. Although it's not as clear as it once was, the level is between the marks, and there are no leaks.
Here are some pics:
The first picture is a little bit yellower than it is in real life, and the second one rather more so. This is pretty obviously the result of the torchlight - a bright LED - shining through the coolant. The staining on the inside of the tank is much more marked below its equator, as it were.
The light patches in the bottom half are whiter than they appear on these two pictures, and are much closer in colour to the natural translucent white of the top of the tank.
Photo 3 shows the inside. You can see the staining on the internal components.
I'm sorry about the rather graphic nature of pictures 4 and 5, and I can only apologise to anyone in the middle of their lunch.
No 4 is the result of wiping my finger on the side of that little tab visible on No 3. It looks oily, but it isn't. If you look closely at this and No 5 (which is a bit of rolled up kitchen towel used as a dipstick) you can little particles of this sediment.
You can also see on the kitchen towel pic how much of the G13's normal pink colour has disappeared.
As I said, this stuff is not oily. There is nothing floating on top of the coolant in the tank. Stick your hooter in the neck of the header and it doesn't smell of oil.
There is absolutely no sign of water in the oil either.
The effect is very much like the staining you get on the inside of a mug when you make a brew with a teabag then get distracted and wander off for an hour without having put any milk in it.
Anyone seen anything similar?
Cheers
Pete
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