whatever you do, order a OE seal from the dealer. It costs a little more but is far better. One glass installer I know refused to use the seal that they sell aftermarket (like Worldpac sells). There IS a difference! the glass co. may be buying aftermarket seals, they want to maximize profit, not try to get the best product for the customer. Furnish your own seal, ask them to deduct the normal seal cost from what they normally quote and your car will be the better for it.

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!