All of us with heat issues check this out - Upgrades (non engine related ) - VWDiesel.net The IDI, TDI, and mTDI source.

• All of us with heat issues check this out by theman53 on 28 Jan, 2012 08:53
• Stole this topic from another forum. I never thought of using the foam for the grill. I will do this with my IDI when I get it going for next winter.
  http://www.vwdieselparts.com/forum/viewtopic.php?f=8&t=11309