tune up parts interval?

[Huw Powell]

> I have a '87 5kcstq w/jillion miles.  About 2 years/20K mi. ago I 
> replaced the plugs, wires, cap undt rotor. Is there an interval for 
> changing that stuff?  Or just replace when they ain't working?  (Car's 
> running ok, btw.)

I prefer no to wait until the car runs like poop to replace basic 
tune-up parts.  Of course, this means having a rough idea of when to 
either simply replace them, or at least start checking them.

Rather than answer your question, how about seeing if I did when I wrote 
these:

http://www.humanspeakers.com/audi/service-interval.htm
http://www.humanspeakers.com/audi/service-interval-table.htm

OK, I'd say your wires should be good for 50-75k miles, the cap and 
rotor like being changed at 20k or so, and the plugs will depend on 
design and conditions.

Ideally, one removes and replaces a good working part *just before* it 
starts affecting the way the car runs.  Of course, that would be magic...

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/