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Old 04-18-2011, 05:19 PM   #1 (permalink)
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1975 280C... stalls at traffic light

I have a 1975 Mercedes 280C, my cars stalls at the traffic light when I am not moving but when I am moving it runs fine. My car just started doing this today and its frustrating because everytime my foot is off the gas my car is stalling
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Old 04-18-2011, 05:52 PM   #2 (permalink)
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Its a W114 Coupe
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Old 04-18-2011, 09:53 PM   #3 (permalink)
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Sounds like a vacuum leak. The carbs are prone to warping which could cause leaks.
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Old 04-18-2011, 10:20 PM   #4 (permalink)
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I encountered the exact problem with my '99 C280. MB dealership of Silver Springs explained that it was my fuel injector.
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Old 04-18-2011, 10:49 PM   #5 (permalink)
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"He step's up to the plate" chew's and spit's, eyeball's the pitcher, ready's for the pitch, "swing and a miss".



I might say carb or vacuum problem, but sometime's people forget to drain the torque converter when flushing the trans, dirty fluid in the torque converter will cause the converter to not fully release, causing a stall.


You must also remember a Mercedes was built as a race horse, not a grocery getter, sometime's you need to drive it like you rented it, and paid for the extra insurance.
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Old 04-19-2011, 05:42 AM   #6 (permalink)
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Is your idle speed set too low?
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Old 04-19-2011, 05:37 PM   #7 (permalink)
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Would your '75 280c have a D-Jet injection fuel system? If so, there is a good chance that a vacuum leak would be the culprit. These things seem to run on vacuum as much as gasoline.

I'd recommend that you start out with the tune-up basics: Check the distributor cap, plugs, rotor, dwell angle (yes, these things DO have points), timing, and idle speed.

Eliminate the "cheap" stuff before you start going for the expensive pieces.
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Old 04-19-2011, 05:47 PM   #8 (permalink)
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Quote:
Originally Posted by RadioTek View Post
Would your '75 280c have a D-Jet injection fuel system?
That would be the CE, the 280C is carb fed.
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Old 04-20-2011, 05:26 PM   #9 (permalink)
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Thanks for responding! I will check out these things this weekend.
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Old 04-23-2011, 03:52 AM   #10 (permalink)
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Solex carb, if I'm not mistaken. Finnicky damned things. If it JUST started happening, you likely have a dirty jet or something. Aside from warpage, I'd look at having the whole thing cleaned and then set the idle as necessary.
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