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#1
04-21-2004, 11:02 PM
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560SL coughs with acceleration
Two Symptoms:
1 - Let car sit and idle - after 10 minutes - it stalls. After restarting, acceleration will not exceed 2K RPM, then after 5 minutes driving - all appears OK. 2 - Attempt a "Jack Rabbit start" from the traffic light. Things are smooth up to 6K RPM, gear changes, then car coughs and hesitates. Letting off the gas - runs smooth again, just can not quickly accelerate - even from moving. Thanks for the help Wife suggests this occured last fall also. 171K mile. 
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Thanks for the help Bill Fisher '86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle 02 E430 in the stable '14 LS460 (Lexus) - - - - - '95 E420 (198K) found a new home '99 E320 (80K) (gave it's life for me as we hit a bumper) '95 E420 (231K) Sold to a happy buyer, new to Mercedes '90 300E (65K) Sold to an Mercedes Lover '92 190E (215K) - retired to the salvage yard '93 500SEL (214K) - Moved to another family, still runs like a young pup 
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#3
04-23-2004, 08:01 AM
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Thanks - more how too
Thanks for the suggestion.
I have viewed other threads describing the caughing. How do you suggest I get the "Gunk" out of the gas tank? The current tank (half way gone) has a large bottle of Techron. The fuel filter was changed last year - but I suspect I should change it again. Summary - How should tank be cleaned and rest of system? Thanks 
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Thanks for the help Bill Fisher '86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle 02 E430 in the stable '14 LS460 (Lexus) - - - - - '95 E420 (198K) found a new home '99 E320 (80K) (gave it's life for me as we hit a bumper) '95 E420 (231K) Sold to a happy buyer, new to Mercedes '90 300E (65K) Sold to an Mercedes Lover '92 190E (215K) - retired to the salvage yard '93 500SEL (214K) - Moved to another family, still runs like a young pup
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#4
04-23-2004, 02:13 PM
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Almost sounds as though your CIS U computer is kirking out on you.. Had a VERY similar problem in a 560SEL of mine, played with injectors, fuel pumps, accumulators, regualtors etc.. Finally swapped the CIS E computer and it fixed EVERYTHING. Do you know anyone with a 560 that you could swap a the bugger out with??
Sometime you can get a cheap used one on ebay, new they are over 700 :-/ Good Luck! Jonathan
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Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta
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#5
04-25-2004, 09:10 AM
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more info please
how does a CSI u differ from a CIS E
When I go to Fast Lane or eBAY for that matter - what do I ask for - no hits on CIS. Is this the Feul Distributor?
__________________
Thanks for the help Bill Fisher '86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle 02 E430 in the stable '14 LS460 (Lexus) - - - - - '95 E420 (198K) found a new home '99 E320 (80K) (gave it's life for me as we hit a bumper) '95 E420 (231K) Sold to a happy buyer, new to Mercedes '90 300E (65K) Sold to an Mercedes Lover '92 190E (215K) - retired to the salvage yard '93 500SEL (214K) - Moved to another family, still runs like a young pup
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#6
04-26-2004, 11:02 AM
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Sorry, that was CIS E :-/ You may have to try some breakers such as potamic or silver star.. If you can't find one there, I bought a new one through buymbparts, the gave a Great price (well relatively at least..!)
Good Luck! Jonathan
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Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta
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#7
04-26-2004, 11:56 AM
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'90 300SE 298k -300K and it gets put into retirement. '80 300D 255k Purchased new by family in 1980. Had a: 1973 220 (gas) 1980 300SD 1992 400E
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#8
04-26-2004, 06:09 PM
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The Professional Mechanic is in my future
I'm not feeling comfortable with Fuel Systems.
This weekend I will change the fuel filter - then if not satisfied - call the mechanic. Justr found a south jersey team I really like. :-( that's sad when your mechanic recognizes your voice on the phone.
__________________
Thanks for the help Bill Fisher '86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle 02 E430 in the stable '14 LS460 (Lexus) - - - - - '95 E420 (198K) found a new home '99 E320 (80K) (gave it's life for me as we hit a bumper) '95 E420 (231K) Sold to a happy buyer, new to Mercedes '90 300E (65K) Sold to an Mercedes Lover '92 190E (215K) - retired to the salvage yard '93 500SEL (214K) - Moved to another family, still runs like a young pup
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