04-02-2007, 12:28 PM
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Registered User
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Join Date: Feb 2007
Location: Freeport, Kansas
Posts: 226
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Quote:
Originally Posted by 1981_300sd
Hey all. I took some advice from some of the users here, I had a 300SD that had some problems, and live in a HOA where I can not work on my car. So I ended up selling the 300SD, and got myself a 240d (pictures attached). Got this car because it has been maintained great, has a rebuilt engine (30,000 miles ago), brakes are great, and had new clutch and all at 30,000 miles. I chose this car too because of the better fuel economy and because it is much more simple than the 300SD to work on when I need to. Anyway, its a great car but had a couple of questions about some of the minor issues I have with it, as follows:
1. The oil pressure stays at "3" all the time. When I go to a stop light or anything, even after being warmed up and sitting idle, it stays pegged at "3". Does this sound like a possible bad ground or faulty sensor, or should it really stay at "3" all the time?
2. What is up with the climate control lol? On my 300sd you can select economy, or AC, and change heat and ac pretty easy. This one makes no sense to me. The center dial obviously changes fan speed, but the two on either side show what looks like hot to cool dials. Why are there two of them? And how do I set "economy" mode? Im just really lost with these dials. Im sure its simple, just need to be pointed in the right direction.
3. The stereo does not power on. Im sure it is a fuse problem, but when I checked for the fuses under the hood, I saw none. Is there another area the fuses are located on these cars?
4. What coolant temperature should this car read? Im wondering what is acceptable for it - is 90-100 degrees C ok?
5. Last question, it is obviously slower than my 300sd, but what speed should I keep it under - like on the freeway? Will running it at 80 mph do damage? It seems to go that fast, but just running at pretty high RPM's. Is there a suggested speed to keep it under? I do understand that around 55-65 will get the best fuel economy, but I am asking more about the engine condition.
Thanks for your help as usual!
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Hey, did you buy this from the guy in Arizona? Looks like the same pictures I had sent to me. Really nice car, I needed to buy it before he did the paint job, and could have saved quite a bit of money!. The left dial controls the heat to the drivers side, the right dial controls heat to the passenger side(dual controls, if you can believe it?) Of course you have found the fan speed in the middle. The dial on top of the fan speed is your ac temp. Just turn it too colder, and you should have AC. Hope the car works out, as I was considering it myself, but the location and price were a little out my area! 
Jim
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1979 Mercedes 240D (Sold to a neighbor last year,now I have room for a new one,looking for a 300D this time)
1980 Mercedes 240D(bought for a parts car, but I have fun driving it! )
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