Unfortunately this is a common problem with these cars. If you used the search feature you would find a ton written about the radiator necks breaking off.

If you were to check a non-failed neck, you would notice a ridge that helps secure the hose. Many have tried (including myself) to repair this failure. I have had short-term luck with JBWeld, but in the end, I have had to replace it.

Some radiator shops can attach a new "top" but they are often hard to find.

Later style radiators have metal inserts inside the neck to help preventing the breaking. I have not heard exactly why they fail but some have offered: over tightening of the clamp, simply old plastic that goes through many heating ~ cooling cycles and still others have suggested the use of the dreaded green coolant.


If you are planning a 1,200 mile trip, definitely replace/repair the radiator before embarking.

You might be able to find a used one and save some money, but they sure to check the neck before purchasing.


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)