What does it consist of? When I was younger, I thought it was an oil change, filter, lube, etc. But an oil change and so doesn't seem like a tune-up anymore. Does it just consist of changing all of the fluids and filters, a valve adjustment maybe...? This has been on my mind for some time and knew where I could find the answer! Thanks everyone.

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

30 years ago it was an ignition system tune-up, Don't have any idea as to the use of this term in today's computer world!

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MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

There was a time when mechanics tuned systems similar to tuning a guitar. Optimum timing, more or less fuel etc. Today the modern car takes care of all that many times a second. Most MBs now time each individual cylinder plus or minus from the rest. The twin plug motors even alternate which plug fires first and times each plug for optimum efficiency and temperature.

The only thing tuneable on the modern car is the alignment!

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Back in the "old" days, about 10 years ago, you could take your car to a Tune-up Masters, which I guess was the equivalent of today's Jiffy Lube. A tune up consisted of something like the following. Don't forget, all replacement parts, if necessary, were extra.

• Inspect, clean and regap sparkplugs
• Inspect spark plug wiring
• Inspect distributor cap and rotor, points
• Check timing
• Adjust idle mixture

What this really meant was:

• Hit the plugs with an airgun
• Wiring works since there's ignition
• You almost always needed a new cap and rotor, so $14 for new distributor cap/rotor/points/condensor
• Turn the distriubutor clockwise or counterclockwise until it sounds good with your foot on the pedal
• turn a screw on the carburetor till it feels good, normaly in conjunction with rotating the distributor

Kuan