Have you ever changed your power steering fluid screen/filter? My 77 300D had a noise while turning, and replacing this part solved it. It was also gushing PS fluid out the top of the reservoir. (Not sure if the 126 is the same.)

You probably want to have a professional tech look at it, just for peace of mind. Some of these suspension parts do fall under the "safety" category, and they do wear out over time.

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Bob Roe
Lehigh Valley PA USA
1973 Olds 88, 1972 MB 280SE, 1978 Datsun 280Z, 1971 Ford T-Bird, 1972 Olds 88, 1983 Nissan Sentra, 1985 Sentra, 1973 230.6, 1990 Acura Integra, 1991 Volvo 940GLE wagon, 1983 300SD, 1984 300SD, 1995 Subaru Legacy L wagon, 2002 Mountaineer, 1991 300TE wagon, 2008 Murano, 2007 R320CDI 4Matic 52K, some Hyundai, 2008 BMW 535xi wagon, all gone... currently
2007 Honda Odyssey Touring, 2014 E350 4matic