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Mercedes-Benz 300-Class, Engine, Fuel System, Diesel, Coupe, Sedan
#145 of 2332 Curious about quality of Mercedes'
Aug 17, 2002 (11:19 pm)
I have been enamored with the oft touted great engineering of the MB autos but am baffled when I read on these boards about owners having to replace their engines on 300's after only 100,000 miles. I am seriously considering getting a 1992 300 but am concerned after reading these postings. I presently have a 1985 Buick Sabre with 255,346 miles and other than brakes, tires and batteries, have only had to replace the catalytic converter and had a minor transmission repair since the auto was new. Am I being stupid to think that any used, well cared for, Mercedes I purchase will do as well?
Aug 18, 2002 (12:11 pm)
Don't believe everything you read on the Internet and even if you can believe it remember that it is anecdotal evidence which gives no clue as to owner maintenance (or neglect), previous history of the car, etc.
I'd estimate about 95 out of 100 people complaining about Mercedes quality have never owned one, and of the 5 who have owned them and had bad experiences we often don't know the complete circumstances.
Certainly, every now and then any car made will cough up a few poor examples, but given the quality that goes into a Benz engine I'd say that a failure at 100K would be far more the exception rather than the rule.
#147 of 2332 Mercedes Quality
Aug 19, 2002 (10:31 am)
capbill - As our host pointed out, there are exceptions with each auto nameplate, and I'd say your Buick with 255,000+ miles and minor upkeep expense was an extreme exception! My own experience differs dramatically -- by far, the worst build quality car I ever owned was a Buick Super (many years ago).
Mercedes diesels are probably in a class by themselves when quality and longevity are considered. The thousands of Mercedes diesel taxis in Germany speak well for their quality and endurance. My wife has a 1977 300D with 97,000 miles, and she's fond of saying that it's almost broken in! But then, I ensure that it's properly maintained, and it's garaged whenever it's not on the road. When we drive it and stop, people keep trying to buy it from us!
Bottom line -- if a Mercedes diesel is given proper care and regular maintenance, it should last a very long time and accumulate many miles.
Aug 20, 2002 (10:14 am)
Seems to me that any claim proporting that an entire product line of a distinguished automaker is deteriorating rapidly in quality would have to be supported by some rather substantial, timely and thorough evidence.
If it isn't supported by such, one would have to suspect malicious intent.
#149 of 2332 Mr. Shiftright
Aug 21, 2002 (1:34 pm)
If your Post # 148 regarding a claim that an entire product line of a distinguished automaker is deteriorating rapidly in quality was aimed at my comments about Buick, I suggest that you read my post again. There was no such claim, and there was certainly no malicious intent. The Buick I reported about was a horror story on wheels, and whatever could go wrong, DID. That was decades ago, and as a result, I've never owned another Buick.
I'm reasonably sure that my experience has been repeated by owners of every make of automobile that's ever been on the road. And I would say AGAIN that ANY car that is driven 255,000+ miles with minor upkeep expense is, indeed, an extreme exception (Mercedes diesels included -- they DO need regular maintenance and frequent upkeep that often is costly). I believe you're aware that in Germany, Daimler Benz awards 100,000 Km. grill badges to owners of Mercedes diesels as they accumulate each 100,000 Km., and some grills sport four or more such badges!
Aug 21, 2002 (2:09 pm)
No, no, no such intent whatsoever.....didn't even cross my mind. Sorry for the misunderstanding if that's what it looked like.
It was just a general comment about brand-bashing.
Aug 21, 2002 (3:32 pm)
Glad I wasn't the target or focal point. Maybe I'm just getting more sensitive in my old age.
In any case, I think consumers ultimately decide which brand of autos survive and which bite the dust. I remember Nash, Studebaker, DeSoto and more recently, Plymouth. Soon Olds will join the list. For a while, Audi was on the ropes, at least in the U.S. market. Some would say, "Too bad." Others might say it was bound to happen. My bet, though, is that we'll never see Mercedes or BMW discontinued.
Aug 25, 2002 (2:48 pm)
When Mercedes dies, all car companies will be dead right alongside it and we'll be driving some kind of anti-gravity pod.
#153 of 2332 Over Heating- 300 SDL
Aug 30, 2002 (12:13 pm)
Hello everyone. I have a 1987 300 SDL w/140K, and hope that somebody can help me with a problem.
City driving in hot weather (all summer here in New Orleans, LA) sends the coolant temperature gauge almost to the red. Then the A/C compressor shuts off, making it unbearably hot for passengers. However, after stopping car and turning key to accessory, the gauge will show about 100 degrees (far below overheating).
My independent mechanic has more than 20 years exp. working on MB. He says the reading when the engine is not running is the accurate one and the car is in no danger of overheating. He replaced radiator and all hoses about a year ago; replaced thermostat last month and flushed radiator. Also, electric fan works. He is not really sure what the problem is, but thinks it might be the gauge itself. It seems to me that it must be something else, b/c I wouldn't think a bad gauge would cause the compressor to switch off and on.
Any ideas? Thanks in advance!
Aug 30, 2002 (3:53 pm)
Well this is easily enough solved with a common automotive thermometer. Any good radiator shop should have one.
Don't play guessing games with a possibly overheating engine.
Also, 100 degress can't be right, or if it is, you have another problem. No engine could run properly at 100 degrees for very long, it would sludge up.
So if the gauge is right while driving you have a problem, (overheating) and if it's right while on accessory you have another problem (running far too cold).