Mercedes Benz repair: Used MB 300E, throttle linkage, valve guides


Question
Hi, I just bought an 87 MB 300E. It seems to run great, everything works fine. The engine has minor vibration when I stop at a light. I'm thinking motor mounts need replacement. The gas pedal feels kind of hard, can this be fixed? The only thing that does not function is the mileage reader. I assume the cable broke and needs replacement. I asked the guy I bought it from if he had changed the timing belt, but he said MB don't need to have them replaced, is this correct? or should I go ahead a have someone replace it. The car stopped counting miles at 127000 +, should have about 140,000 by now. Any other suggestions as to what else to have replaced, or inspected? I'm on a budget.  Thanks in advance

Answer
Replace the engine mounts.
Lubricate all ball/sockets in the throttle linkage.
At 150000 miles the valve guides should be worn out, the timing chain, and guides should be replaced soon, if you plan to keep the car.

300D Instrument Cluster Lights
http://www.mercedesshop.com/shopforum/showthread.php?t=65955

Broken Odometer
http://www.mercedesshop.com/shopforum/showthread.php?t=141302

How to Repair Your Broken Odometer
http://dieselgiant.com/repairyourodometer.htm

How to remove instrument cluster.
http://www.mercedesshop.com/shopforum/showthread.php?p=176202#post176202

Lets' Pull the Instrument Cluster!
http://www.mercedesshop.com/shopforum/showthread.php?p=447830#post447830

Non-functioning odometers
http://www.mercedesshop.com/shopforum/showthread.php?p=937816#post937816

Speedometer malfunction
http://www.mercedesshop.com/shopforum/showthread.php?p=584521#post584521

3 broken speedometer cables in a month!
http://www.mercedesshop.com/shopforum/showthread.php?p=261451#post261451

Speedometer wobbles
http://www.mercedesshop.com/shopforum/showthread.php?p=71005#post71005

Broken Speedometer and Odometer
http://www.mercedesshop.com/shopforum/showthread.php?p=454298#post454298

Speedometer broke...
http://www.mercedesshop.com/shopforum/showthread.php?p=962474#post962474