[s-cars] WGFV

[Tom Green]

Looks like the links didn't come out exactly as planned.  The  
Vagparts links
were supposed to be specific WGFV product links.  They are on the S2/RS2
engine parts page if you want to look at them.  Of course, any parts  
from them
will incur higher shipping costs and time since they are in the UK.    
They are
high volume S2/RS2 parts suppliers and a reliable source.  Same for  
impex
as a reliable supplier of US parts.

If you have access to a VAG-COM, the output test cycles the WGFV so you
can hear/feel it operate, and you can  disconnect the vacuum line from
the wastegate to also verify operation.  As for the adaptive  
characteristics
providing optimal pressure rise, I can only assume this is observed by
the proper boost pressure obtained in operation, unless excessive boost
fault codes are found.

An upgraded valve may smooth out the boost for you, but I doubt it is  
the cause
of your boost loss or poor fuel mileage.

Tom

On Mar 15, 2007, at 6:44 PM, Eric Phillips wrote:

> Thanks, Tom.  Looks like Worldimpex has the K for $90.
>
> I may have to do some looking into the archive for WGFV failure  
> symptoms.
>
> On 3/15/07, Tom Green <trgreen at comcast.net> wrote:
>> here's some pictures, Eric, and possible sources if the dealer
>> isn't.   My S6 has an "H" series valve.  It is labeled
>> the N75 valve on schematics in Bentley, and is a solenoid controlled
>> vacuum control valve.
>>
>> <https://sslrelay.com/s74326199.oneandoneshop.co.uk/sess/
>> utn1545f9be243f40b/shopdata/index.shopscript>
>>
>> <https://sslrelay.com/s74326199.oneandoneshop.co.uk/sess/
>> utn1545f9be243f40b/shopdata/index.shopscript>
>>
>> <http://www.worldimpex.com/parts/genuine-part-j-valve_117476.html>
>>
>> <http://www.worldimpex.com/search_by_partno.html?
>> searchmode=partno&partno=034906283K&x=39&y=8>
>>
>> There is a description in this AAN Motronic booklet.