My 95 E320 is coming up on 113K. I've had the car since 52K with no records before that, so I assume the water pump is original. I'm curious if now is a good time and if it's wise to replace the water pump before it goes out on me at some inopportune time. I take the car on 200 mile trips during the summer, and I'd hate to be stranded because of a water pump that decides to leak. The convertible is retired for the winter season for about another month or so, so I can do the job at a leisurely pace.

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95 E320 Cabriolet, 169K