92 400E Power steering pump and water pump, need advice
Hello, I am a new owner of a 92 400E with 170K. First time Mercedes owner. With its age, it will need a lot of maintenance to bring it up in good health. Currently, there is a big power steering leak and I suspect it is the hose between the reservoir and the pump. Because the pump has been run without fluid few times, I bought a rebuilt pump from autohaus to replace the leaking one. I removed the 2 bolts that hold the steering pump bracket ( one under the reservoir and the other one behine the bracket on the driver side), but the bracket don't want to come off. Am I missing a bolt somewhere?
Also, as part of the maintence, i like to replace the water pump. However, I see that one of the mounting bolts is behind the big harmonic balancer. I don't see a way to loosen that bolts without taking out the cooling fan bracket (that will make me to take out the alternator) and the harmonic balancer. If I am right, is it worth it to do? Or should I wait until the water pump fail?
Beside that, here is my maintence list to bring the 400E back to life:
change out tranny fluid filter, tranny fluid, oil change, caps, rotors, wires, plugs, new power steering pump, filter, differential oil, drive belt change, new fan clutch, coolant change, thermostat change, and drive belt tensioner change.
Hook-up with Alldatadiy....to replace the PS pump you pretty much need to remove alot of the stuff on the front of the engine, don't cut corners, remove the rad first. Lotta work. While you're there, do the water pump!!. It is a BIG job to do the PS pump but it needs doing on the M119...they all leak......and it will leak again..
My E420 has 220 000 miles, just replaced the PS pump and water pump at same time. Big job, yes had to remove rad. Got a PS pump rebuilt from autohaus and an aftermarket water Pump.
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