I am replacing the radiator and wondered how tight the upper radiator hose clap should be.

My question is regarding this common failure. Is it related to over-tightening the clamp or is this just material failure?

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)