'89 100 with various problems

[Paul Jefferies <jefferie@umich.edu>]

Although the three years I've owned the 100 have been the best vehicle 
owning experience that I have, there are several recent or persistent 
problems that I hope someone can help me with.

The 1.8 bar engine oil pressure switch is bad (per local dealer 
inspection). I have the replacement part, but the location shown in 
Bentley seems to be wrong. The picture on page 96.6 shows the sensor in 
question right next the 0.3 bar one. In my car, the only sensors near the 
0.3 bar are what I believe to be a knock sensor and a variable pressure 
sensor for the gauge. Any hints on where else to look? The result of this 
malfunctioning sensor/switch is a low oil pressure warning on the 
multifunction display whenever the engine is above 3k RPM.

Speedometer/Odometer are on sporatically or completely off. It also 
affects the MPG and range calculations. I haven't been through the full 
diagnostics per Bentleys, yet. In this case I'm looking for anyone who's 
had a similar problem and can suggest a probable cause.

The final major problem is the worst. For the last year (approx.) the 
clearcoat has been peeling. At this point, approximately 10% is gone. Has 
anyone had any similar experiences? There appears to be no damage to the 
paint. Can the clearcoat be stripped and reapplied without repainting?

Thanks for any help and just for listening.
_____________________________________________________________________________
Paul J. Jefferies                  jefferie@umich.edu
Project Engineer                   (313) 454-7987
Johnson Controls, Inc.
Automotive Systems Group           1989 100
                                   1991 Kawasaki Ninja 600
Ann Arbor, MI                      In between Porsche 914's.