To Arthur's point, the true test of a good marriage is for you to get in the trunk and have your wife close the lid. You can then determine if the light is going out. If she opens it, all is well; if not, she would have come up with another plan sooner or later anyway.

A semi-scientific approach and one better suited for iffy marraiages would be to place a cam corder in the trunk, aimed in the direction of the lamp. Close lid, let it run a bit, open lid, take cam corder inside and hook up to TV or watch the film thru whatever viewing facility is built into the cam corder.

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Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"