Hello all, I am a new member and I have a question for the group. I purchased a 86 190E from a friend of mine, The car is in EXCELLENT shape the only issues are the sunroof, radio, and passenger power window. I was given the car for 200.00 so I couldnt resist the opportunity. I am the 3rd owner and I am having a BIG hesitation problem. When I step on the gas the car goes (just barely) then it gets a big thrust of power and goes to speed. Now I noticed that while driving @ 65mph the rpms are @ an amazing 3500 to 4000 rpms I am assuming it is the tranny that is the issue but I am not sure. Another tidbit the hesitation isnt as bad with SuperUnleaded gas in it but it is still there. I had a tune up about 1 month ago (seeing the person I bought the car from NEVER had one given to it). So if anyone could maybe clue me in it would be greatly appreciated. Thanks in advance.

Which engine?? 4 or 6??

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

Sorry 4cyl.

Come on guys there has got be someone out there. I know its Sun and all (hahaha)

Well, you should be seeing 70 mph for 3500 rpm. But for $200.00 whadda want??.!!! The hesitation could be a number of things, fuel starvation, dirty injectors, ignition and so on. I am not that familiar with that year 190e, but if it is not fuel injected and has a carb, you have a huge flat spot. Maybe Steve or Donnie can get more specific, or maybe you know. Is it injected or carburetored? The bottom line is there are a number of possibilities for the hesitation. You may have to have it checked by a competent tech.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

Carb?? Come on Jeff, MB hasn't had a carburated car since the 230 was discontinued in 1978.

Jeffs right about it could be anything. If you wish to delve into it go to the DIY section and read the article about evaluating engine controls. If they are OK there are a number of other possibilities. Bad coil or shorted rotor finger are a couple of the cheaper ignition possibilities.

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

Steve, I really don't know much about the 4 cyl motors beyond the number of cylinder, spark plugs valves ( 4-4-8). I was hoping you could be the guy to help this fella and educate me as well. The only reason I mentioned carb was I happened to see a 4 cyl section in one of my repair manuals and it had a section on carburetors.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

Is the hesitation the same regardless of engine temp? Or does it change?

I had a customer with a 1984 190 that had a sidedraft carb engine. This was factory version.

Hey Stevie, I knew I saw a car setup in my Haynes manual. It was a 1985 W124 200 series with a 2.0 liter 4 cyl with a Piermont or Piedmont or whatever electronically controlled carb. I knew I saw it. It's probably a Euro setup.

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Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.

Damon...did you change the fuel filter. This sounds like a very neglected car. Throw in some fuel system cleaner as well.

Damon, what are the other problems you are having with the sunroof, window and radio? If you give descriptions, I am sure someone will help you. I have a '88 190 2.3 and just rebuilt the head. 3,000 rpm @ 60 mph. I will check this weekend to see 3,500 rpm. Does anyone really know where it should be given a flat road, no wind and a perfect car?

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1988 190E 2.3 (178,000)
FastLane, PartsShop and this forum rule!!!

Might we be missing an obvious point here. Damon, is this your first recent vintage Benz? If so and it is an automatic transmission the sluggish takeoff may be nothing more than the fact the tranny starts you off in second gear unless you really hit the go pedal hard. Just takes some getting used to.

Tom