Thanks for the quick reply - I will tear into the cover and make sure its all tight in there, and measure the blades. Bought new wiper refills just to give the old girl a treat.

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1991 300 SEL
218,000 Km

"Xsbank's rules of mechanical intervention: Always go for the easiest solution first; 90% of what ails a gasoline engine is ignition; After that its all a WAG."