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Ontario Local discussions for those in the Ontario, Canada area.

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Old November 25th, 2014, 13:50   #1
TDIGAZ
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Default HOW TO: Block radiator with coroplast to keep warm for winter

Lots of threads about blocking front grill with pipe insulation to stay warm in the winter, also a few more about using coroplast plastic sheets.
Everyone says how easy the pipe insulation method... ageed, but I not a big fan of how it looks.
So I decided on the coroplast method and thought I'd capture a few pics as I went along... hope this helps answer a few questions on how simple and easy this method is also.

Step 1: Find coroplast sheet. They are available at dollar stores, home depot, or you can recycle an election sign .

Step 2: Cut 3; 7.5 x 29 inch sheets. Paint gray/black (optional)

Step 3: Remove front grill... this is much easier than you would expect. I used the following video as a tutorial.
www.youtube.com/watch?v=14G3sMJ71Wk

Step 4: Fold each sheet in half and slide sheets down in front of radiator. The driver's side opening is slightly larger, so use that spot to work from and slide the sheets over one at a time. There is a channel at the bottom of the condenser to slide the sheets down into. This hold the sheets securely so no need for tape or anything else.





Step 5: Re-attach front grill, admire your work and enjoy the warmth.



Before the install, the car was running at a consistent 84 degrees C on the highway this November, I will monitor how well this works throughout the colder winter months.
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Old November 25th, 2014, 14:04   #2
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Remember to remove once warmer weather starts coming!
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Old November 25th, 2014, 14:25   #3
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hmmm... i should look at the 'Egg' for a similar implementation.
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Old November 25th, 2014, 14:43   #4
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I also did this to my MK4 but it was too much for of a hassle to get it out when we had a few warm days. The foam insulation works for me because it comes off in a second. I also found some nice round 1 inch insulation at Rona for my MKVI that's absolutely perfect. Sits flush and real snug. Hardly noticeable. 10 feet for $5.00. Only works for the top grill. Need the half inch pipe insulation for the lower. Call me cheap!
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Old November 25th, 2014, 19:20   #5
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Nice write up Gary !
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Old November 25th, 2014, 20:56   #6
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If you do this theres really no need to remove it when the weather warms up temporarily. Put it on in the fall and take it off in the spring. These engines don't produce enough heat for it to matter...
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Old November 26th, 2014, 06:05   #7
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Pipe insulation in the upper and lower grills. In the thaw on Monday I did see as high as 98 C via my OBD app. Lots of slowing down and speeding up (asshat traffic). Not high enough to cause concern, but it's still higher than normal temp. Figured I'd add a data point.
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Old November 26th, 2014, 11:24   #8
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Quote:
Originally Posted by TDIGAZ View Post
Before the install, the car was running at a consistent 84 degrees C on the highway this November, I will monitor how well this works throughout the colder winter months.
Mine used to run at that temp before I changed my t-stat. You may want to look into that as well. It will run at 88C-90C without the rad block.
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Old November 28th, 2014, 09:38   #9
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Quote:
Originally Posted by volkswheels View Post
Nice write up Gary !
Thanks Matt, and to all, for everyones feedback.
So far it hasn't been cold enough to see how effective this is. No real change in coolant temps, so currently I see that as a good thing. I will wait for the cold days of January/February to see what coolant temps are then.
Agree that a t-stat change could help, but will wait for that.
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Old January 9th, 2015, 07:04   #10
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Originally Posted by TDIGAZ View Post
So far it hasn't been cold enough to see how effective this is...
Well yesterday morning was a great test to see how effective the coroplast covering is.
Left for work and the air temperature was -27 deg.C with windchill at -35 deg.C. After about 5 minutes on the 401 the coolant temperature reached 83 deg.C (according to Torque Pro) and stayed around that for my 1 hour commute.
That's good enough for me .
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Old January 9th, 2015, 10:50   #11
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Quote:
Originally Posted by TDIGAZ View Post
Well yesterday morning was a great test to see how effective the coroplast covering is.
Left for work and the air temperature was -27 deg.C with windchill at -35 deg.C. After about 5 minutes on the 401 the coolant temperature reached 83 deg.C (according to Torque Pro) and stayed around that for my 1 hour commute.
That's good enough for me .
And what would have been without it?
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Old January 9th, 2015, 11:38   #12
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And what would have been without it?
Probably the exact same, lol. I find that when people complain about their TDI not heating up, they've got the fan blasting and the temp dial all the way in the red. Go figure the car takes forever to heat up when you're sucking any heat out of the system.
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Old January 9th, 2015, 12:52   #13
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I've honestly not noticed a large difference in passenger compartment warm-up time compared to petrol cars. I think the major difference is that the gasser will warm up within a few minutes in your driveway idling while the TDI will not. But under load (i.e. while driving), the warmup times are not noticeably different to me.
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Old January 10th, 2015, 09:17   #14
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Electric heat does wonders for this!

Quote:
Originally Posted by LNXGUY View Post
Probably the exact same, lol. I find that when people complain about their TDI not heating up, they've got the fan blasting and the temp dial all the way in the red. Go figure the car takes forever to heat up when you're sucking any heat out of the system.
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Old April 3rd, 2015, 17:15   #15
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Originally Posted by mrrhtuner View Post
Remember to remove once warmer weather starts coming!
Removed the coroplast rad cover today... literally took 5 minutes to do.
The coroplast sheets look just the same as when they were put in, so they'll be reused next winter.
Now to get the winter tires off...
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