Re: 89 200 wiring diagrams

[Gregg Temkin <twincam@halcyon.com>]

>>The Bently wiring diagram for "production up to Nov. 1988" in Volume
>>Three of the Audi 100/200 repair maual set is hosed. Various major
>>electrical circuits disappear between pages.  I called up Bentley and
>>spoke to an "editor" who agreed there was a problem but basically said
>>"we print them the wau we get them from Audi". Not exactly the response I
>>like to hear after waiting 4 years for the thing to get published and
>>spending $160.  I've ended up using the wiring diagrams from later years
>>which don't have this problem.  Just thought I'd warn you.
>
>I am in the process of installing an early 89 200 TQ engine into my 83
>TQC and am using this wiring schematic,"production up to Nov. 1988",
> to layout the combo wiring harness. Can you give a better
>description of "hosed" and how it might effect me? I am primarilly
>concerned with mistakes you have found in the ECU/engine harness/
>idle stabilization circuits. I am also planning on using the 89 200 fuse
>box and connectors. The rest of the car will remain 83 vintage. Please
>elaborate on what you have found. Thanks a bunch.
> -
>Dave Lawson  dlawson@ball.com
>83 TQC
>86 coupe GT

Dave,

I was afraid someone would ask.  My characterization of being hosed may 
be a bit excessive but judge for yourself. I had to go back and search 
but here's what I found.  Most of these are minor errors, some are I 
don't know how minor or major, but they are not present on the other 
wiring diagrams in the book.  All the problems I list here exist at the 
upper gray "internal fusebox bus" portions of the page.  I know I've 
found other problems within the body of the schematic but I didn't 
document them and they're not as easy to reconstruct.

1) The current path labeled "a" on page 147 appears to change to "d" on 
148 and then back to "a" on page 149.

2) Between pages 166 and 167 there appears to be a major hose up with the 
disappearance of current path "a1" and the spontaneous appearance of 
paths "a" and "d".

3) Between pages 167 and 168 current path "a" disappears and then 
resurfaces again at page 178.

4) Current path "h", which appears to terminate on page 163, also 
spontaneously reappears on page 199.

I don't think that any of these affect your project and I'm sure if there 
are any errors that will affect your work that they will stand out pretty 
clearly.

Good luck

Gregg Temkin
'89 200tqw
twincam@halcyon.com