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Old 04-15-2003, 01:14 PM
nazrat nazrat is offline
Diesel on the brain
Join Date: Nov 2002
Location: Upstate Virginia
Posts: 566
How to tell if harness has been replaced on M104

How can I tell if someone has had the harness replaced on an M104 engine?

The car has 131k miles and runs flawlessly. It does seep a little bit of oil from the front of the head (headgasket I'd bet) - but not enough to drip.

We just bought it in about Sep and love the car. The previous owner had the car serviced at a Mercedes specialty mechanic so replacement is a possibility. Right before we bought it the mechanic replaced a lifter because it was tapping (the car sat at his shop for 6 months while the owner was overseas, and when started apparently had no oil in that lifter). During that procedure would he have disturbed an original wiring harness that was faulty?

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