Quote:
Originally Posted by DieselJim
How do you know you need to change the vacuum pump or timing gear? Based on other threads I've read that sounds like an important maintenance issue
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At your mileage the timing chain should not be an issue. Some folks change the vacuum pump as a precaution; I did but at 290,000 miles, not 160,000. If you want, pull the valve cover and check the chain stretch but it's unlikely to need replacement this soon unless the car has been severely abused by never changing the oil, etc.
All you really need to do is to defeat the EGR valve, clean the intake of all of the EGR soot, and check on the crankcase ventilation hoses and the fuel hoses, which get old, hard, and subsequently crack.
Jeremy
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"Buster" in the '95
Our all-Diesel family
1996 E300D (W210) . .338,000 miles
Wife's car
2005 E320 CDI . . 113,000 miles
My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
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