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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +)

VW MKVII-Mk7 Golf family including Golf Wagon (~ 2015 +) Discussions area for the Mk7 (2015+) Golf and Golf Wagon TDIs based on the MQB (Modularer Querbaukasten) platform.

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Old June 2nd, 2020, 18:43   #16
GreenLantern_TDI
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90,000
Yes
Torque app OBD
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Old June 2nd, 2020, 20:28   #17
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What about temperature needle?
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Old June 3rd, 2020, 04:11   #18
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Sitting at 200 like they programmed it to. 170* up to only God knows where it just shows 200.
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Old June 3rd, 2020, 05:38   #19
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Quote:
Originally Posted by ticaf View Post
If that is your worry, you can unplug the pump connector. I believe you'll get a check engine light unless you put a resistor on the connector to trick the computer the pump is there.
My guess is that the pump fails on cars that rarely reach operating temperature (i.e. short distance city driving).
i don't believe any codes are thrown for non op WP shroud.
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Old June 3rd, 2020, 05:41   #20
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Originally Posted by GreenLantern_TDI View Post
so today my car was running 215* at 70 mph on the interstate. It was 93* ambient temp but my car has never run that hot consistently. CACT temp was 270*-305*. So I'm guessing my pump wasn't functioning at 100%. My car sees 30k miles a year. So lots of operating temp miles.
Be mindful there are more than one WP. The A2W pump should have a duty cycle that will help those CACT and a different radiator.

A coolant flush of both systems wouldn't hurt as that 270-305F is mighty high for the A2W IC.
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Old June 3rd, 2020, 06:41   #21
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Originally Posted by GreenLantern_TDI View Post
Sitting at 200 like they programmed it to. 170* up to only God knows where it just shows 200.

I've hit 220* on a grade and the factory gauge didn't budge off 200*. It would be interesting to know at what temp it moves, it probably goes straight from 200 into the danger zone in one quick sweep.
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Old June 3rd, 2020, 07:35   #22
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This happened with my wife's 2015 TDI when we were 1000km from home. It just randomly decided to start overheating.

We limped it over to a VW dealer and they spent an hour trying to diagnose it. They never found any problem and it stopped overheating after that.

I believe it was probably the water pump impeller shroud. It likely got stuck so it was blocking the impeller. When the dealer hooked up their diagnostic tools I figure part of the testing was actuating the shroud to see if it moves as it should, and doing so got it back to functioning normally.

It has been over a year since then, and it hasn't happened again.

Next time we go on a long trip I'll be sure to bring my VCDS cable with me. Probably would have saved an hour diagnostic fee at the dealer.
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Old June 4th, 2020, 09:29   #23
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I've hit 220* on a grade and the factory gauge didn't budge off 200*. It would be interesting to know at what temp it moves, it probably goes straight from 200 into the danger zone in one quick sweep.
It probably does and thats too bad VW feels it needs to hide the true temp.
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Old June 4th, 2020, 09:31   #24
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Quote:
Originally Posted by Mike_04GolfTDI View Post
This happened with my wife's 2015 TDI when we were 1000km from home. It just randomly decided to start overheating.

We limped it over to a VW dealer and they spent an hour trying to diagnose it. They never found any problem and it stopped overheating after that.

I believe it was probably the water pump impeller shroud. It likely got stuck so it was blocking the impeller. When the dealer hooked up their diagnostic tools I figure part of the testing was actuating the shroud to see if it moves as it should, and doing so got it back to functioning normally.

It has been over a year since then, and it hasn't happened again.

Next time we go on a long trip I'll be sure to bring my VCDS cable with me. Probably would have saved an hour diagnostic fee at the dealer.
Can't wait till timing belt change to resolve this issue and the DPF issues as well.
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Old June 4th, 2020, 09:33   #25
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Originally Posted by GreenLantern_TDI View Post
It probably does and thats too bad VW feels it needs to hide the true temp.
When was the last time you saw a temperature gauge on a car with numbers on it? Lots of new cars (including enthusiast cars like my BMW) don't have a gauge at all.
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Old June 5th, 2020, 03:57   #26
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When was the last time you saw a temperature gauge on a car with numbers on it? Lots of new cars (including enthusiast cars like my BMW) don't have a gauge at all.
Yeah I guess your right now that I think about it. The days of the driver needing that kinda info like oil pressure, battery voltage or trans temp seem to be going away. Hell I kinda doubt most drivers today would even know what to do with that kind of information.

For anyone following this thread for an overheat issue. Yesterday was high 90*s again with conditions same as before and my car never got over 197* and CACT never got over 250*. Seems to be a hit or miss issue.
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Old June 5th, 2020, 04:23   #27
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Was the car doing a regen when coolant temps spiked? I've noticed oil temps climb 5-10F when its doing a regen, have to assume coolant temps climb as well.
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Old June 7th, 2020, 15:33   #28
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Was the car doing a regen when coolant temps spiked? I've noticed oil temps climb 5-10F when its doing a regen, have to assume coolant temps climb as well.
No wasnt in regen
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Old June 9th, 2020, 11:28   #29
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Did some highway and country roads yesterday. Even had a Regen going on.
I'm comfirming the temperature stayed around 198F (91 to 93c) the whole time.
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Old June 13th, 2020, 11:35   #30
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Originally Posted by bigb View Post
I've hit 220* on a grade and the factory gauge didn't budge off 200*. It would be interesting to know at what temp it moves, it probably goes straight from 200 into the danger zone in one quick sweep.
It moves to the right about a needles width or two when it hits 225. At 224 itís right in the middle. I track it on my Scangauge.
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