Interior fan on my 06 VW TDI Beetle only works on #4/full blast

Nero Morg

Veteran Member
Joined
Oct 19, 2017
Location
OR
TDI
2003 Jetta wagon, 2001 Jetta TDI, 2014 Passat TDI
Most likely need a new fan speed resistor. It's bolted to the bottom of the heater box, below the glove box.
 

Gothmolly

Veteran Member
Joined
Feb 3, 2005
Location
Providence, RI
TDI
2002 Golf
Are you sure it's not doing ANYTHING? Maybe your cabin filter is plugged up so low fan speeds feel like nothing comes out?
 

williambill

Veteran Member
Joined
Dec 15, 2013
Location
Dry Prong, LA
TDI
2002 Jetta TDI
Yup, as mentioned above, definitely sounds like a dead fan/blower resistor. Had this exact problem before and posted here about it and was given the same advice. Truthfully, I was skeptical at first till I finally found the wire diagram and confirmed the symptoms schematically. (This was on a Mk4 Jetta).
 

STDOUBT

Veteran Member
Joined
Jul 30, 2007
Location
Portland, effing Oregon
TDI
ALHx2
The same thing happened in my 1987 Toyota pickup and yep. It was the resistor.
That was before the internet, though, so I have no idea how I ever figured that out. :confused:
 

irvingj

Veteran Member
Joined
Nov 28, 2006
Location
Etna,NH
TDI
2005 Jetta Wagon TDI (PD)
Hey, Vince, it says Alberta, so how come you sound like a MA guy? Thanks for the video -- haven't needed that yet, but probably will in the future.
 

jettawreck

Top Post Dawg
Joined
Aug 2, 2004
Location
Northern Minnesota-55744
TDI
2001 Jetta and 2003 Jetta
Yep, although it is no doubt the resister gone bad there is often a reason the resister heat protector "fuse" fails. I replaced a couple years ago in the 2001 until one day the smoke spewed out of the dash vents and the blower fan motor suddenly screeched to a stop. When the fan motor bearings (and or windings/brushes) wear out and cause extra amp draw from excess drag it can overheat the resistor. Eventually the motor is toast. Replace the resistor or heat protector "fuse" and see how much time it buys you.
 

06tdibug

Member
Joined
Mar 13, 2018
Location
North Carolina
TDI
2006 tdi beetle
Thanks for all of the replies. I have the resistor out which is attached to a plastic cover. Resistor is pretty dark and cracked. Appears to be made on to the plastic cover. Does any one know if the new/replacement part is just the resistor or does it come on a new plastic cover?
 

06tdibug

Member
Joined
Mar 13, 2018
Location
North Carolina
TDI
2006 tdi beetle
I have removed the blower fan. Has anyone ever taken the plastic piece off so you can clean the blower and oil the bearings?
 

ToxicDoc

Veteran Member
Joined
Mar 1, 2018
Location
Virginia, US
TDI
2001 Jetta, S7, .216
I have removed the blower fan. Has anyone ever taken the plastic piece off so you can clean the blower and oil the bearings?
This was just posted in another section:

 

06tdibug

Member
Joined
Mar 13, 2018
Location
North Carolina
TDI
2006 tdi beetle
The brushes on my blower fan motor appear to have plenty of material left how much wear is allowed where the brushes ride on the armature
 
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