Saturday, March 5, 2011

Mercedes 200ce w124

I own a 1992 Dec. Mercedes 200ce. It is a w124 body coupe model. I have it since March 2006.



It has a 2.0L doch petrol engine with 100kw (134hp), a 5 speed manual transmission. Black leather interior, air conditioner, electric windows and mirrors. It consumes about 10L/100km average or if I decide to drive very steady 100-110km/h I managed to get 6,7L/100km on the highway.
Did about 45000km myself. What is it's real mileage I can only guess, because when I bought it, it shown 135000 on the odometer. The image that it has been turned back was made stronger by the fact that the little odometer, the one with 4 digits, was not working. By the way - still isn't. I bought it as you can see in the pictures (I apologize for the quality). Same wheels, no stupid tuning, no dark tinted windows, just a factory all window green tint. It is in a fairly good condition and really reliable - one of the two main reasons I bought it. The other one is no pillar when you roll down the windows, that is just cool. Oh and rear wheel drive obviously. That is just more fun.
So though it really delivers in reliability area, there were some problems with it. And I am ashamed I have not fixed all of them. First of all, when I bought it, the automatic antenna did not work, the window wiper is sometimes really slow and the automatic seat belt arms did not work as well. So the first two problems still exist and back then I did not know about that there is this third problem, until my  friend told me, that these models have automatic seat belt arms. Then I did some reading on the internet, but since did not really knew what caused them not to work, I just unscrewed the upholstery and fiddled with the wires and joints while moving the ignition key into the second and zero positions. Also I forced the automatic arms to come out and go in a few times. Furthermore, found a disconnected pressure sensor wire under the passenger seat. I thought nothing had worked and put the upholstery in it's place. Left the ignition key in the second position and closed the door. Imagine my surprise when the automatic arm gently passed me my seat belt:). It worked for three years, then the drivers side stopped working. Tried to do the same "magic", but no result. Also I had problems with the central locking. It is not the vacuum pump's, but the faulty after market alarm's fault. Took it to an electrician, fixed the central locking and the drivers side automatic seat belt arm started working again. The central locking works when it wants with the remote, but always works with the key. From my experience I can tell, that the electrical system in this car does not age well. This brings me to another problem , a faulty commutator which I had. Turns out it is a common problem for the CIS KE-Jetronic M111.940 engines. Their used commutators are very rare and quite expensive. The symptoms I experienced were stalling when coming to a halt and stalling when building rev's. After a few days of this kind of "driving" it sometimes did not start at all. Three winters in a row I experienced this problem. When it got cold to about -10C and colder the problem occurred and when it got warmer, to about +2C the problem disappeared. So the third winter I finally found a mechanic who recognized the origin of the problem and fixed it. Turns out that in minus degrees some condensate froze in the hose that provides data for the vacuum sensor, which is built into the commutator and because of that it could not calculate the air fuel mixture correctly. The solution is hilariously simple - ad a fuel filter before the commutator to absorb the condensate. You can see in the picture how it was done. Proven solution. This winter no problem.
Also in my ownership years I had changed the water pump and the starter motor. I think the thermostat is next in line, because the engine always heated up to 80C and now it started to go only till 65C. So apart from not being able to make a sauna in the cabin it does not cause me any problems. Actually I would like to change all the electrical wiring in the car, because, as Mercedes themselves admitted, they used some kind of material for the wiring for the cars of that age, that disintegrates over time. And when I look at some of my cars wire status I can not argue with that.
All in all I think I had not had a lot of problems in 5 years owning this car. It is a car that is easy to love, super comfortable and, with that turning radius, easy to park. 
I will update on the car's status from time to time, so for now I can just honestly say that I am not thinking of selling it.