My 1990 300E 2.6L Mercedes just passed 300,000 miles. Both the engine
and transmission were rebuilt at 200,000 miles. The plugs, wires,
water pump, shocks, springs and exhaust were replaces between 200,000
and 300,000 miles. Can any tell me what I should look to replace now
that the car is at 300,000? The only this I have noticed is the car
is a little sluggish when accelerating.