W114, what problems etc - Mercedes-Benz Forum

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post #1 of 12 (permalink) Old 04-12-2008, 06:46 PM Thread Starter
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W114, what problems etc

Hey everyone, i was looking into buying a 1976 Mercedes-Benz 280, what should i look for as in problems? and what kind of price should i offer for it? it seems to have had no major problems, and the paint is still quite nice. It has only 150,000 miles on it, and the interior is pristine.
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post #2 of 12 (permalink) Old 04-12-2008, 07:42 PM
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There are bulletproof the w114 with a 280 never's has any problems. Except sometimes if owner runs cheap fuel there might be problems with the carb but that's it otherwise no problems the M110 engine will last about 500,000 miles if you change oil and adjust valves and replace timing chain every 150,000 miles. Oh yes the only other problem is rust. They are worth about 1,000 to 45,000 dollars depending on condition.
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post #3 of 12 (permalink) Old 04-12-2008, 08:10 PM
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M110's have a double row timing chain, therfore they last alot longer then a single row chain like on a 617 diesel motor.

'79 280CE with 226,000 miles
'76 240D 4 speed with 190,000
'85 300D Turbo with 266,000 miles

GONE but not forgotten
'76 300D with 195,300 miles
"83 300D with 174,000 miles

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post #4 of 12 (permalink) Old 04-13-2008, 02:30 PM
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These cars are not worth much so if there is any significant rust or mechanical problems then they are not worth more than a few hundred dollars. Make sure that the heater blower motor works. The motor is buried deep into the dash requiring dash removal. This is a 10-20 hour job.
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post #5 of 12 (permalink) Old 04-14-2008, 07:18 AM
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I was just going to post the same thing. I sold a W115 300D that I really liked due to not wanting to invest the time or money to repair the heater fan motor... and the subsequent owner repainted the car, made it look great cosmetically then offered to sell it back to me for what he paid for it...because he didn't want to invest the time or money to replace the heater fan motor...
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post #6 of 12 (permalink) Old 04-14-2008, 09:11 AM
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On the subject...

of things that go bad under the dash. The vacuum/bellow units that control the flaps that switch from heat to A/C go bad over time, causing vacuum leaks.

Also, the carburetted, de-tuned for the U.S. market, M110 is no speed demon. You won't find the performance breathtaking, to say the least. Fuel economy is nothing to write home about either...

The "amusement park/bumper car," Federally mandated bumpers, really do look like an afterthought [which they were] and the aluminum covers get all beat up when other drivers parallel park "by ear".

At 150K, you will be looking at an engine one of these days... get the car thoroughly looked over by a qualified professional before buying.

As always, service records are important, if available.

Good luck,

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post #7 of 12 (permalink) Old 04-14-2008, 09:55 AM
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The solex carb on the 73-76 280 can be problematic and difficult to tune right! Ask me how I know!!!
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post #8 of 12 (permalink) Old 04-14-2008, 02:26 PM
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Yep, the twin solex or Zenith carburettors are a real PITA..
Both to syncronize, and to adjust.. Also the bi-metal-springs under the intake are prone to brake and give you trouble on either cold or warm engine..

1991 W140 400 SE - SOLD !!
1973 W115 200 -For sale as project.
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post #9 of 12 (permalink) Old 04-20-2009, 10:04 PM
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hello there. i have one of these bad boys and let me tell you i have not had any type of issues with it. everytime i drive it it feels like im driving a small tank and feel sorry for all the alluminum built cars out on the road..they dont make them like that anymore. mine only has 94k original miles and paid $1200 for it and would have paid double that had i known the kind of car it was.would defenitely recommend buying a car like this
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post #10 of 12 (permalink) Old 04-21-2009, 06:42 AM
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Originally Posted by 79Mercy View Post
M110's have a double row timing chain, therfore they last alot longer then a single row chain like on a 617 diesel motor.
Call me crazy but am I seeing double?

1977 - W116 - 6.9
1974 - W115 - 240D /8 - 4(M) OM617.910 + Turbo + 300D FW - Completed 7/8/10
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