What should I expect to pay for a tune up on a 1994 C220 Sedan with +/- 147000 miles on it? I live in Colorado.
THanks,

It's going to vary alot. There are some independent shops that charge less than going to a dealer. That can be a tradeoff though. Some are real good, others not so good. The same can be said for the dealer of course, but at least the dealer has a better chance of having personel well trained in the product.
The hourly rate is what greatly effects the end cost.

That being said, these days it's kind of a murky thing as far as what a "tune up" consists of. There's not much to adjust on the engine, mostly replacing spark plugs and the fuel and air filters. maybe checking the computer for trouble codes, stuff like that.
Once you start approaching this amount of miles you have to make sure the transmission fluid and filter were replaced somewhere in the last 30,000 miles or so, and Benz is kinda picky on replacing the coolant and brake fluid every so often.

So, if you wnated to make sure everything on the car is in spec, you'd probably want to get what MB calls the "150,000 mile service". On the low side, assuming just replacing the maintenance stuff (no extra work needed like brake pads and rotors or tires, extra stuff like that) probably be looking at $200. That's if you find a good independent who works fairly cheap (up to you to find such a person), or at a dealership may be up around $400-$500. That's for everything I just mentioned-oil change, trans service, spark plugs, fuel filter, air filter, cabin filter, all that stuff, parts and labor.

Gilly

without knowing what previous services had been performed and when, then it is hard to give you a really good answer that will use your money wisely.

If you intend to keep the car for much longer, and want the car in the best shape - then all the fluids should have been changed at some point within the past fifty-thousand miles; transmission fluid, power steering fluid, brake fluid, rear differential fluid, radiator fluid. Of course engine oil at increased intervals.

Brakes should be checked to determine pad and disc life, plus brake lines should be inspected.

Hoses and belts should be investigated to know when the last time they were changed.

Timing chain should be changed only if it had never been. and if this work is done water pump replacement should be considered.

Underside of car inspected for rust, suspension parts should be inspected for play.

Battery fluid level checked, or battery replaced if more than four years old.

Drive train flex disc should be inspected for cracks.

Electrical fuses should be replaced every ten years.

Fuel lines inspected and filter changed.

Hopefully; I gave you some idea on things your money should be put toward. And looking at the above list it is pretty good at listing from most important to least important.

Where ever you take the car make sure it is a Mercedes specialist, and gat a written estimate and only sign it once you review and understand each item. All replaced parts should be asked to be returned to you.

p.s tires, bulbs, windshield wipers, air filters and cabin filters are all things you can install yourself or shop for low prices and installation on your own.

I wrote and posted my answer before I saw Gilly's response. He knows much more than me so keep that into account.