[shelby987]

I pulled the knee bar off my dash this afternoon for something non-fuse box related, and found what you see below. There is a 30Amp fuse in the upper left corner (as you look at the panel in its stock orientation)....the fuse seems to be intact, but the clip, and all the plastic around it seems to be melted.......can anyone tell me what this fuse does/is?

This is on a 91 Jetta GL with a 1.6l diesel, I couldn't find this fuse listed on the knee panel sheet, I am wondering if it is for my glow plugs?

Also, can anyone tell me what that connector with the 4 wire connection is for? brown, blue/white, blue, and black wires?

 

[Squidbert]

I had a power draw issue that went away when I pulled the fuse in that location. Mine was a power seat fuse.

 

[shelby987]

This car most definately does not have power seats!

Any other ideas?

 

[VDub2625]

Connector is the test connection for cruise control. Fuse is probably for AC and radiator fan. Does your AC work?

 

[shelby987]

I am not sure, the car is pulled apart right now, the fuse is still intact though, the casing is melted, and the plastic portion of the fuse is a little melted, but the metal portion of the fuse seems fine and intact.......any ideas?

 

[VDub2625]

Any ideas about what?

 

[Burnitwithfire]

Connector is the test connection for cruise control. Fuse is probably for AC and radiator fan. Does your AC work?

That was the rad fan fuse in my B3. If it melted like that, your rad fan was probably drawing too much power.

 

[VDub2625]

Now that I think about it it controls the interior fan speed 4 (1-3 is controlled by fuse 6 on the fuse box), and the air conditioner. The rad fan is run by a fuse on the fuse block (fuse 19).

 

[vdubguy85]

I've got the same problem! Went to start my helios today(despite the cold start issue; work in progress) and the motor would hardly turn over. Jumped it and didn't make a difference, battery still had no power almost like I wasn't even jumping it. Then I get a little puff of smoke from the clamshell area on the column so I start pulling everything apart and I find this:

I'm still in the middle of tearing everything apart, just wondering if there was ever a resolution to the problem here. Any help would be GREAT.

 

[VDub2625]

As I stated, it's for AC and the interior fan 4th speed... pull the AC relay and it won't be used any more.

 

[vdubguy85]

That would make sense since I lost the 4th speed on the fan a couple of nights ago. I'm assuming that by pulling the a/c relay I'd no longer have air conditioning?

It'd be nice to know what cause it to melt. Who's to say it won't happen again. Wouldn't be load reduction relay issue would it?

 

[VDub2625]

No. This is the kind of thing you'll have to figure out on your own since there are a ton of copmponents that go into the AC system.