JamesDean,
Are those W126 manuals on CD's? if so where can I get a set. Those were a big help in my running down what was wrong with "Sweet Abigail"

DANG! I hadn't read SPARKY STUFF (electrical schematics) for a few years. It all came flooding back Led me right to the mono valve circuit.

In response to the SPARKY dig, I'm a retired mechanical designer.

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1986 Euro 500SEC "RUF" 9:1CR, "Rose"
1985 Euro 500SEC Cabriolet AMG Widebody
1982 Euro 500SEL "Blue"
2001 Texas Heeler (Aussie/Queensland X) "Sulphie",
2012 Queensland Red Heeler "Squeak"
Best dogs I've ever had.