On 7-May-06, at 10:20 AM, Marshall Booth wrote:
The Mercedes test rig tested everything (power, switches, sensor,
etc.)
except the amp and if everything else was okay, the amp was
presumed to
be bad
Actually I got back from the dealer with a fixed cruise control
system on my 90's 300TDt.
The test rig first tag the cruise control amp as bad, but a new one
did not work.
After many hours of labour (of which I was billed none of) they
discovered the Hall effect sensor was
faulty even tho their test rig insisted it was ok, actually it
insisted everything was ok.
Fortunately they had a 92ish 300E in the back lot to swap parts
between to resolve this issue,
I assure you they were very befuddled why their test rig lied to them...
My dryly rendered comment was: "What, you trust computers?"
In reading the testing comments I can only assume static testing of
the hall effect sensor said it was ok, but
when actually running it was faulty.
John
1983 300TDt 364k Kilometers (mobil 1 Delvac)
1990's 300TDt 166k Kilometers (mobil 1 Delvac)
1993 500SEL 174k Kilometers (mobil 1 Delvac)
