[Vwdiesel] TDI Dash/voltage regulator

[Andrew Miller]

Not all is lost.  I purchased a used GLX dash with MFA for $135 and
will get the MFA/wiper stalk this weekend at the local VW salvage yard.
  I thought about this conversion before....now it is a no-brainer.

I just want to make sure that I have all power issues resolved prior to
installing the new/used one.

This voltage transient came be read everywhere.  It is noticeable in
the fan and headlights too.

So I guess the points are:

1.  Use the right battery!!!!  I like NAPA size 41.
2.  If your dash starts to do a dance during cold morning starts....GET
A NEW BATTERY!!!



On Wednesday, Mar 12, 2003, at 23:05 US/Eastern, Lee Hillsgrove wrote:

>
>> Just lost my dash the other day.  Old Pepboys battery the previous
>> owner put in finally died during a cold morning start.  The dash went
>> with the battery.
>>
>> The dash has been acting funny during cold morning starts.  During
>> cracking it will go dead...gages will buz around...trip and clock will
>> reset...  When the car starts gages will come back.
>
>
>
>   Ouch... The dreaded Passat IP failure. It's a design flaw with the
> voltage
> regulation in the IP. If you do a search on the TDIclub you will find
> reams
> of info on this affliction.
>
> People! If your Passat gauges start acting funny, Run! Don't walk, to
> the
> nearest battery store and get the biggest and best thing that will fit
> in
> there. Your IP was crying out for help.....
>
> Bad thing is, these are no longer available new from VW. You MIGHT be
> able
> to get a rebuilt one. I remember reading a thread on the TDIclub about
> getting them repaired by an electronics tech. Do a search and you
> should be
> able to find the info.
>
>
>>
>> My guess is that my regulator is bad...in fact just after starting I
>> get ~11volts if I rev. the engine it bumps up and stays at 14 volts.
>
>
>
>   Hmm.... I don't have a Passat but my '98 Jetta TDI comes right up
> without
> bumping the revs. The '85 1.6D on the other hand, requires better than
> 2000
> rpm or so before the alternator comes on line.
> Is your belt tight? I think it's a serpentine, so it probably is. Is
> this
> read right at the battery, or on the voltmeter in the dash? Might be
> related
> to the rest of the problems if it's the car's you're reading. Best get
> a
> voltmeter on the battery to make sure if you haven't already.
>
> Loren? What's your dad's behave like on a cold start?
>
>
>   Lee
>   Oo-v-oO
>   PP-ASEL
>   KB1GNI
>
>
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>
>
Andy

'96 Passat TDI
'96 Passat TDI wagon
'70 BMW 2002